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# Directory Structure

```
├── .changeset
│   ├── cold-items-taste.md
│   ├── config.json
│   ├── empty-spiders-dress.md
│   ├── shy-windows-allow.md
│   ├── sour-coins-read.md
│   ├── tame-zebras-invite.md
│   ├── twenty-jeans-watch.md
│   └── warm-spies-melt.md
├── .eslintrc.cjs
├── .github
│   ├── build-checklist.png
│   ├── ISSUE_TEMPLATE
│   │   ├── bug_report.md
│   │   └── feature_request.md
│   └── workflows
│       ├── deploy-docs-optimized.yml
│       ├── deploy-docs.yml
│       ├── prepare-versions.yml
│       ├── release-packages.yml
│       ├── run-all-tests.yml
│       └── run-smoke-tests.yml
├── .gitignore
├── .prettierrc.js
├── .vscode
│   ├── launch.json
│   └── settings.json
├── blog
│   ├── .gitignore
│   ├── .gitkeep
│   ├── CHANGELOG.md
│   ├── extensions.ts
│   ├── index.html
│   ├── index.ts
│   ├── package.json
│   ├── public
│   │   ├── blog
│   │   │   ├── images
│   │   │   │   ├── blog-page-component.png
│   │   │   │   ├── blog-scrabble.png
│   │   │   │   ├── integrated-blog-search.png
│   │   │   │   └── lorem-ipsum.png
│   │   │   ├── lorem-ipsum.md
│   │   │   ├── newest-post.md
│   │   │   ├── older-post.md
│   │   │   └── welcome-to-the-xmlui-blog.md
│   │   ├── mockServiceWorker.js
│   │   ├── resources
│   │   │   ├── favicon.ico
│   │   │   ├── files
│   │   │   │   └── for-download
│   │   │   │       └── xmlui
│   │   │   │           └── xmlui-standalone.umd.js
│   │   │   ├── github.svg
│   │   │   ├── llms.txt
│   │   │   ├── logo-dark.svg
│   │   │   ├── logo.svg
│   │   │   ├── pg-popout.svg
│   │   │   └── xmlui-logo.svg
│   │   ├── serve.json
│   │   └── web.config
│   ├── scripts
│   │   ├── download-latest-xmlui.js
│   │   ├── generate-rss.js
│   │   ├── get-releases.js
│   │   └── utils.js
│   ├── src
│   │   ├── components
│   │   │   ├── BlogOverview.xmlui
│   │   │   ├── BlogPage.xmlui
│   │   │   └── PageNotFound.xmlui
│   │   ├── config.ts
│   │   ├── Main.xmlui
│   │   └── themes
│   │       ├── docs-theme.ts
│   │       ├── earthtone.ts
│   │       ├── xmlui-gray-on-default.ts
│   │       ├── xmlui-green-on-default.ts
│   │       └── xmlui-orange-on-default.ts
│   └── tsconfig.json
├── CONTRIBUTING.md
├── docs
│   ├── .gitignore
│   ├── CHANGELOG.md
│   ├── ComponentRefLinks.txt
│   ├── content
│   │   ├── _meta.json
│   │   ├── components
│   │   │   ├── _meta.json
│   │   │   ├── _overview.md
│   │   │   ├── APICall.md
│   │   │   ├── App.md
│   │   │   ├── AppHeader.md
│   │   │   ├── AppState.md
│   │   │   ├── AutoComplete.md
│   │   │   ├── Avatar.md
│   │   │   ├── Backdrop.md
│   │   │   ├── Badge.md
│   │   │   ├── BarChart.md
│   │   │   ├── Bookmark.md
│   │   │   ├── Breakout.md
│   │   │   ├── Button.md
│   │   │   ├── Card.md
│   │   │   ├── Carousel.md
│   │   │   ├── ChangeListener.md
│   │   │   ├── Checkbox.md
│   │   │   ├── CHStack.md
│   │   │   ├── ColorPicker.md
│   │   │   ├── Column.md
│   │   │   ├── ContentSeparator.md
│   │   │   ├── CVStack.md
│   │   │   ├── DataSource.md
│   │   │   ├── DateInput.md
│   │   │   ├── DatePicker.md
│   │   │   ├── DonutChart.md
│   │   │   ├── DropdownMenu.md
│   │   │   ├── EmojiSelector.md
│   │   │   ├── ExpandableItem.md
│   │   │   ├── FileInput.md
│   │   │   ├── FileUploadDropZone.md
│   │   │   ├── FlowLayout.md
│   │   │   ├── Footer.md
│   │   │   ├── Form.md
│   │   │   ├── FormItem.md
│   │   │   ├── FormSection.md
│   │   │   ├── Fragment.md
│   │   │   ├── H1.md
│   │   │   ├── H2.md
│   │   │   ├── H3.md
│   │   │   ├── H4.md
│   │   │   ├── H5.md
│   │   │   ├── H6.md
│   │   │   ├── Heading.md
│   │   │   ├── HSplitter.md
│   │   │   ├── HStack.md
│   │   │   ├── Icon.md
│   │   │   ├── IFrame.md
│   │   │   ├── Image.md
│   │   │   ├── Items.md
│   │   │   ├── LabelList.md
│   │   │   ├── Legend.md
│   │   │   ├── LineChart.md
│   │   │   ├── Link.md
│   │   │   ├── List.md
│   │   │   ├── Logo.md
│   │   │   ├── Markdown.md
│   │   │   ├── MenuItem.md
│   │   │   ├── MenuSeparator.md
│   │   │   ├── ModalDialog.md
│   │   │   ├── NavGroup.md
│   │   │   ├── NavLink.md
│   │   │   ├── NavPanel.md
│   │   │   ├── NoResult.md
│   │   │   ├── NumberBox.md
│   │   │   ├── Option.md
│   │   │   ├── Page.md
│   │   │   ├── PageMetaTitle.md
│   │   │   ├── Pages.md
│   │   │   ├── Pagination.md
│   │   │   ├── PasswordInput.md
│   │   │   ├── PieChart.md
│   │   │   ├── ProgressBar.md
│   │   │   ├── Queue.md
│   │   │   ├── RadioGroup.md
│   │   │   ├── RealTimeAdapter.md
│   │   │   ├── Redirect.md
│   │   │   ├── Select.md
│   │   │   ├── Slider.md
│   │   │   ├── Slot.md
│   │   │   ├── SpaceFiller.md
│   │   │   ├── Spinner.md
│   │   │   ├── Splitter.md
│   │   │   ├── Stack.md
│   │   │   ├── StickyBox.md
│   │   │   ├── SubMenuItem.md
│   │   │   ├── Switch.md
│   │   │   ├── TabItem.md
│   │   │   ├── Table.md
│   │   │   ├── TableOfContents.md
│   │   │   ├── Tabs.md
│   │   │   ├── Text.md
│   │   │   ├── TextArea.md
│   │   │   ├── TextBox.md
│   │   │   ├── Theme.md
│   │   │   ├── TimeInput.md
│   │   │   ├── Timer.md
│   │   │   ├── ToneChangerButton.md
│   │   │   ├── ToneSwitch.md
│   │   │   ├── Tooltip.md
│   │   │   ├── Tree.md
│   │   │   ├── VSplitter.md
│   │   │   ├── VStack.md
│   │   │   ├── xmlui-animations
│   │   │   │   ├── _meta.json
│   │   │   │   ├── _overview.md
│   │   │   │   ├── Animation.md
│   │   │   │   ├── FadeAnimation.md
│   │   │   │   ├── FadeInAnimation.md
│   │   │   │   ├── FadeOutAnimation.md
│   │   │   │   ├── ScaleAnimation.md
│   │   │   │   └── SlideInAnimation.md
│   │   │   ├── xmlui-pdf
│   │   │   │   ├── _meta.json
│   │   │   │   ├── _overview.md
│   │   │   │   └── Pdf.md
│   │   │   ├── xmlui-spreadsheet
│   │   │   │   ├── _meta.json
│   │   │   │   ├── _overview.md
│   │   │   │   └── Spreadsheet.md
│   │   │   └── xmlui-website-blocks
│   │   │       ├── _meta.json
│   │   │       ├── _overview.md
│   │   │       ├── Carousel.md
│   │   │       ├── HelloMd.md
│   │   │       ├── HeroSection.md
│   │   │       └── ScrollToTop.md
│   │   └── extensions
│   │       ├── _meta.json
│   │       ├── xmlui-animations
│   │       │   ├── _meta.json
│   │       │   ├── _overview.md
│   │       │   ├── Animation.md
│   │       │   ├── FadeAnimation.md
│   │       │   ├── FadeInAnimation.md
│   │       │   ├── FadeOutAnimation.md
│   │       │   ├── ScaleAnimation.md
│   │       │   └── SlideInAnimation.md
│   │       └── xmlui-website-blocks
│   │           ├── _meta.json
│   │           ├── _overview.md
│   │           ├── Carousel.md
│   │           ├── HelloMd.md
│   │           ├── HeroSection.md
│   │           └── ScrollToTop.md
│   ├── extensions.ts
│   ├── index.html
│   ├── index.ts
│   ├── package.json
│   ├── public
│   │   ├── feed.rss
│   │   ├── mockServiceWorker.js
│   │   ├── pages
│   │   │   ├── _meta.json
│   │   │   ├── app-structure.md
│   │   │   ├── build-editor-component.md
│   │   │   ├── build-hello-world-component.md
│   │   │   ├── components-intro.md
│   │   │   ├── context-variables.md
│   │   │   ├── forms.md
│   │   │   ├── globals.md
│   │   │   ├── glossary.md
│   │   │   ├── helper-tags.md
│   │   │   ├── hosted-deployment.md
│   │   │   ├── howto
│   │   │   │   ├── assign-a-complex-json-literal-to-a-component-variable.md
│   │   │   │   ├── chain-a-refetch.md
│   │   │   │   ├── debug-a-component.md
│   │   │   │   ├── delay-a-datasource-until-another-datasource-is-ready.md
│   │   │   │   ├── delegate-a-method.md
│   │   │   │   ├── do-custom-form-validation.md
│   │   │   │   ├── expose-a-method-from-a-component.md
│   │   │   │   ├── filter-and-transform-data-from-an-api.md
│   │   │   │   ├── group-items-in-list-by-a-property.md
│   │   │   │   ├── handle-background-operations.md
│   │   │   │   ├── hide-an-element-until-its-datasource-is-ready.md
│   │   │   │   ├── make-a-set-of-equal-width-cards.md
│   │   │   │   ├── make-a-table-responsive.md
│   │   │   │   ├── modify-a-value-reported-in-a-column.md
│   │   │   │   ├── paginate-a-list.md
│   │   │   │   ├── pass-data-to-a-modal-dialog.md
│   │   │   │   ├── react-to-button-click-not-keystrokes.md
│   │   │   │   ├── set-the-initial-value-of-a-select-from-fetched-data.md
│   │   │   │   ├── share-a-modaldialog-across-components.md
│   │   │   │   ├── sync-selections-between-table-and-list-views.md
│   │   │   │   ├── update-ui-optimistically.md
│   │   │   │   ├── use-built-in-form-validation.md
│   │   │   │   └── use-the-same-modaldialog-to-add-or-edit.md
│   │   │   ├── howto.md
│   │   │   ├── intro.md
│   │   │   ├── layout.md
│   │   │   ├── markup.md
│   │   │   ├── mcp.md
│   │   │   ├── modal-dialogs.md
│   │   │   ├── news-and-reviews.md
│   │   │   ├── reactive-intro.md
│   │   │   ├── refactoring.md
│   │   │   ├── routing-and-links.md
│   │   │   ├── samples
│   │   │   │   ├── color-palette.xmlui
│   │   │   │   ├── color-values.xmlui
│   │   │   │   ├── shadow-sizes.xmlui
│   │   │   │   ├── spacing-sizes.xmlui
│   │   │   │   ├── swatch.xmlui
│   │   │   │   ├── theme-gallery-brief.xmlui
│   │   │   │   └── theme-gallery.xmlui
│   │   │   ├── scoping.md
│   │   │   ├── scripting.md
│   │   │   ├── styles-and-themes
│   │   │   │   ├── common-units.md
│   │   │   │   ├── layout-props.md
│   │   │   │   ├── theme-variable-defaults.md
│   │   │   │   ├── theme-variables.md
│   │   │   │   └── themes.md
│   │   │   ├── template-properties.md
│   │   │   ├── test.md
│   │   │   ├── tutorial-01.md
│   │   │   ├── tutorial-02.md
│   │   │   ├── tutorial-03.md
│   │   │   ├── tutorial-04.md
│   │   │   ├── tutorial-05.md
│   │   │   ├── tutorial-06.md
│   │   │   ├── tutorial-07.md
│   │   │   ├── tutorial-08.md
│   │   │   ├── tutorial-09.md
│   │   │   ├── tutorial-10.md
│   │   │   ├── tutorial-11.md
│   │   │   ├── tutorial-12.md
│   │   │   ├── universal-properties.md
│   │   │   ├── user-defined-components.md
│   │   │   ├── vscode.md
│   │   │   ├── working-with-markdown.md
│   │   │   ├── working-with-text.md
│   │   │   ├── xmlui-animations
│   │   │   │   ├── _meta.json
│   │   │   │   ├── _overview.md
│   │   │   │   ├── Animation.md
│   │   │   │   ├── FadeAnimation.md
│   │   │   │   ├── FadeInAnimation.md
│   │   │   │   ├── FadeOutAnimation.md
│   │   │   │   ├── ScaleAnimation.md
│   │   │   │   └── SlideInAnimation.md
│   │   │   ├── xmlui-charts
│   │   │   │   ├── _meta.json
│   │   │   │   ├── _overview.md
│   │   │   │   ├── BarChart.md
│   │   │   │   ├── DonutChart.md
│   │   │   │   ├── LabelList.md
│   │   │   │   ├── Legend.md
│   │   │   │   ├── LineChart.md
│   │   │   │   └── PieChart.md
│   │   │   ├── xmlui-pdf
│   │   │   │   ├── _meta.json
│   │   │   │   ├── _overview.md
│   │   │   │   └── Pdf.md
│   │   │   └── xmlui-spreadsheet
│   │   │       ├── _meta.json
│   │   │       ├── _overview.md
│   │   │       └── Spreadsheet.md
│   │   ├── resources
│   │   │   ├── devdocs
│   │   │   │   ├── debug-proxy-object-2.png
│   │   │   │   ├── debug-proxy-object.png
│   │   │   │   ├── table_editor_01.png
│   │   │   │   ├── table_editor_02.png
│   │   │   │   ├── table_editor_03.png
│   │   │   │   ├── table_editor_04.png
│   │   │   │   ├── table_editor_05.png
│   │   │   │   ├── table_editor_06.png
│   │   │   │   ├── table_editor_07.png
│   │   │   │   ├── table_editor_08.png
│   │   │   │   ├── table_editor_09.png
│   │   │   │   ├── table_editor_10.png
│   │   │   │   ├── table_editor_11.png
│   │   │   │   ├── table-editor-01.png
│   │   │   │   ├── table-editor-02.png
│   │   │   │   ├── table-editor-03.png
│   │   │   │   ├── table-editor-04.png
│   │   │   │   ├── table-editor-06.png
│   │   │   │   ├── table-editor-07.png
│   │   │   │   ├── table-editor-08.png
│   │   │   │   ├── table-editor-09.png
│   │   │   │   └── xmlui-rendering-of-tiptap-markdown.png
│   │   │   ├── favicon.ico
│   │   │   ├── files
│   │   │   │   ├── clients.json
│   │   │   │   ├── daily-revenue.json
│   │   │   │   ├── dashboard-stats.json
│   │   │   │   ├── demo.xmlui
│   │   │   │   ├── demo.xmlui.xs
│   │   │   │   ├── downloads
│   │   │   │   │   └── downloads.json
│   │   │   │   ├── for-download
│   │   │   │   │   ├── index-with-api.html
│   │   │   │   │   ├── index.html
│   │   │   │   │   ├── mockApi.js
│   │   │   │   │   ├── start-darwin.sh
│   │   │   │   │   ├── start-linux.sh
│   │   │   │   │   ├── start.bat
│   │   │   │   │   └── xmlui
│   │   │   │   │       └── xmlui-standalone.umd.js
│   │   │   │   ├── getting-started
│   │   │   │   │   ├── cl-tutorial-final.zip
│   │   │   │   │   ├── cl-tutorial.zip
│   │   │   │   │   ├── cl-tutorial2.zip
│   │   │   │   │   ├── cl-tutorial3.zip
│   │   │   │   │   ├── cl-tutorial4.zip
│   │   │   │   │   ├── cl-tutorial5.zip
│   │   │   │   │   ├── cl-tutorial6.zip
│   │   │   │   │   ├── getting-started.zip
│   │   │   │   │   ├── hello-xmlui.zip
│   │   │   │   │   ├── xmlui-empty.zip
│   │   │   │   │   └── xmlui-starter.zip
│   │   │   │   ├── howto
│   │   │   │   │   └── component-icons
│   │   │   │   │       └── up-arrow.svg
│   │   │   │   ├── invoices.json
│   │   │   │   ├── monthly-status.json
│   │   │   │   ├── news-and-reviews.json
│   │   │   │   ├── products.json
│   │   │   │   ├── releases.json
│   │   │   │   ├── tutorials
│   │   │   │   │   ├── datasource
│   │   │   │   │   │   └── api.ts
│   │   │   │   │   └── p2do
│   │   │   │   │       ├── api.ts
│   │   │   │   │       └── todo-logo.svg
│   │   │   │   └── xmlui.json
│   │   │   ├── github.svg
│   │   │   ├── images
│   │   │   │   ├── apiaction-tutorial
│   │   │   │   │   ├── add-success.png
│   │   │   │   │   ├── apiaction-param.png
│   │   │   │   │   ├── change-completed.png
│   │   │   │   │   ├── change-in-progress.png
│   │   │   │   │   ├── confirm-delete.png
│   │   │   │   │   ├── data-error.png
│   │   │   │   │   ├── data-progress.png
│   │   │   │   │   ├── data-success.png
│   │   │   │   │   ├── display-1.png
│   │   │   │   │   ├── item-deleted.png
│   │   │   │   │   ├── item-updated.png
│   │   │   │   │   ├── missing-api-key.png
│   │   │   │   │   ├── new-item-added.png
│   │   │   │   │   └── test-message.png
│   │   │   │   ├── chat-api
│   │   │   │   │   └── domain-model.svg
│   │   │   │   ├── components
│   │   │   │   │   ├── image
│   │   │   │   │   │   └── breakfast.jpg
│   │   │   │   │   ├── markdown
│   │   │   │   │   │   └── colors.png
│   │   │   │   │   └── modal
│   │   │   │   │       ├── deep_link_dialog_1.jpg
│   │   │   │   │       └── deep_link_dialog_2.jpg
│   │   │   │   ├── create-apps
│   │   │   │   │   ├── collapsed-vertical.png
│   │   │   │   │   ├── using-forms-warning-dialog.png
│   │   │   │   │   └── using-forms.png
│   │   │   │   ├── datasource-tutorial
│   │   │   │   │   ├── data-with-header.png
│   │   │   │   │   ├── filtered-data.png
│   │   │   │   │   ├── filtered-items.png
│   │   │   │   │   ├── initial-page-items.png
│   │   │   │   │   ├── list-items.png
│   │   │   │   │   ├── next-page-items.png
│   │   │   │   │   ├── no-data.png
│   │   │   │   │   ├── pagination-1.jpg
│   │   │   │   │   ├── pagination-1.png
│   │   │   │   │   ├── polling-1.png
│   │   │   │   │   ├── refetch-data.png
│   │   │   │   │   ├── slow-loading.png
│   │   │   │   │   ├── test-message.png
│   │   │   │   │   ├── Thumbs.db
│   │   │   │   │   ├── unconventional-data.png
│   │   │   │   │   └── unfiltered-items.png
│   │   │   │   ├── flower.jpg
│   │   │   │   ├── get-started
│   │   │   │   │   ├── add-new-contact.png
│   │   │   │   │   ├── app-modified.png
│   │   │   │   │   ├── app-start.png
│   │   │   │   │   ├── app-with-boxes.png
│   │   │   │   │   ├── app-with-toast.png
│   │   │   │   │   ├── boilerplate-structure.png
│   │   │   │   │   ├── cl-initial.png
│   │   │   │   │   ├── cl-start.png
│   │   │   │   │   ├── contact-counts.png
│   │   │   │   │   ├── contact-dialog-title.png
│   │   │   │   │   ├── contact-dialog.png
│   │   │   │   │   ├── contact-menus.png
│   │   │   │   │   ├── contact-predicates.png
│   │   │   │   │   ├── context-menu.png
│   │   │   │   │   ├── dashboard-numbers.png
│   │   │   │   │   ├── default-contact-list.png
│   │   │   │   │   ├── delete-contact.png
│   │   │   │   │   ├── delete-task.png
│   │   │   │   │   ├── detailed-template.png
│   │   │   │   │   ├── edit-contact-details.png
│   │   │   │   │   ├── edited-contact-saved.png
│   │   │   │   │   ├── empty-sections.png
│   │   │   │   │   ├── filter-completed.png
│   │   │   │   │   ├── fullwidth-desktop.png
│   │   │   │   │   ├── fullwidth-mobile.png
│   │   │   │   │   ├── initial-table.png
│   │   │   │   │   ├── items-and-badges.png
│   │   │   │   │   ├── loading-message.png
│   │   │   │   │   ├── new-contact-button.png
│   │   │   │   │   ├── new-contact-saved.png
│   │   │   │   │   ├── no-empty-sections.png
│   │   │   │   │   ├── personal-todo-initial.png
│   │   │   │   │   ├── piechart.png
│   │   │   │   │   ├── review-today.png
│   │   │   │   │   ├── rudimentary-dashboard.png
│   │   │   │   │   ├── section-collapsed.png
│   │   │   │   │   ├── sectioned-items.png
│   │   │   │   │   ├── sections-ordered.png
│   │   │   │   │   ├── spacex-list-with-links.png
│   │   │   │   │   ├── spacex-list.png
│   │   │   │   │   ├── start-personal-todo-1.png
│   │   │   │   │   ├── submit-new-contact.png
│   │   │   │   │   ├── submit-new-task.png
│   │   │   │   │   ├── syntax-highlighting.png
│   │   │   │   │   ├── table-with-badge.png
│   │   │   │   │   ├── template-with-card.png
│   │   │   │   │   ├── test-emulated-api.png
│   │   │   │   │   ├── Thumbs.db
│   │   │   │   │   ├── todo-logo.png
│   │   │   │   │   └── xmlui-tools.png
│   │   │   │   ├── HelloApp.png
│   │   │   │   ├── HelloApp2.png
│   │   │   │   ├── logos
│   │   │   │   │   ├── xmlui1.svg
│   │   │   │   │   ├── xmlui2.svg
│   │   │   │   │   ├── xmlui3.svg
│   │   │   │   │   ├── xmlui4.svg
│   │   │   │   │   ├── xmlui5.svg
│   │   │   │   │   ├── xmlui6.svg
│   │   │   │   │   └── xmlui7.svg
│   │   │   │   ├── pdf
│   │   │   │   │   └── dummy-pdf.jpg
│   │   │   │   ├── rendering-engine
│   │   │   │   │   ├── AppEngine-flow.svg
│   │   │   │   │   ├── Component.svg
│   │   │   │   │   ├── CompoundComponent.svg
│   │   │   │   │   ├── RootComponent.svg
│   │   │   │   │   └── tree-with-containers.svg
│   │   │   │   ├── reviewers-guide
│   │   │   │   │   ├── AppEngine-flow.svg
│   │   │   │   │   └── incbutton-in-action.png
│   │   │   │   ├── tools
│   │   │   │   │   └── boilerplate-structure.png
│   │   │   │   ├── try.svg
│   │   │   │   ├── tutorial
│   │   │   │   │   ├── app-chat-history.png
│   │   │   │   │   ├── app-content-placeholder.png
│   │   │   │   │   ├── app-header-and-content.png
│   │   │   │   │   ├── app-links-channel-selected.png
│   │   │   │   │   ├── app-links-click.png
│   │   │   │   │   ├── app-navigation.png
│   │   │   │   │   ├── finished-ex01.png
│   │   │   │   │   ├── finished-ex02.png
│   │   │   │   │   ├── hello.png
│   │   │   │   │   ├── splash-screen-advanced.png
│   │   │   │   │   ├── splash-screen-after-click.png
│   │   │   │   │   ├── splash-screen-centered.png
│   │   │   │   │   ├── splash-screen-events.png
│   │   │   │   │   ├── splash-screen-expression.png
│   │   │   │   │   ├── splash-screen-reuse-after.png
│   │   │   │   │   ├── splash-screen-reuse-before.png
│   │   │   │   │   └── splash-screen.png
│   │   │   │   └── tutorial-01.png
│   │   │   ├── llms.txt
│   │   │   ├── logo-dark.svg
│   │   │   ├── logo.svg
│   │   │   ├── pg-popout.svg
│   │   │   └── xmlui-logo.svg
│   │   ├── serve.json
│   │   └── web.config
│   ├── scripts
│   │   ├── download-latest-xmlui.js
│   │   ├── generate-rss.js
│   │   ├── get-releases.js
│   │   └── utils.js
│   ├── src
│   │   ├── components
│   │   │   ├── BlogOverview.xmlui
│   │   │   ├── BlogPage.xmlui
│   │   │   ├── Boxes.xmlui
│   │   │   ├── Breadcrumb.xmlui
│   │   │   ├── ChangeLog.xmlui
│   │   │   ├── ColorPalette.xmlui
│   │   │   ├── DocumentLinks.xmlui
│   │   │   ├── DocumentPage.xmlui
│   │   │   ├── DocumentPageNoTOC.xmlui
│   │   │   ├── Icons.xmlui
│   │   │   ├── IncButton.xmlui
│   │   │   ├── IncButton2.xmlui
│   │   │   ├── NameValue.xmlui
│   │   │   ├── PageNotFound.xmlui
│   │   │   ├── PaletteItem.xmlui
│   │   │   ├── Palettes.xmlui
│   │   │   ├── SectionHeader.xmlui
│   │   │   ├── TBD.xmlui
│   │   │   ├── Test.xmlui
│   │   │   ├── ThemesIntro.xmlui
│   │   │   ├── ThousandThemes.xmlui
│   │   │   ├── TubeStops.xmlui
│   │   │   ├── TubeStops.xmlui.xs
│   │   │   └── TwoColumnCode.xmlui
│   │   ├── config.ts
│   │   ├── Main.xmlui
│   │   └── themes
│   │       ├── docs-theme.ts
│   │       ├── earthtone.ts
│   │       ├── xmlui-gray-on-default.ts
│   │       ├── xmlui-green-on-default.ts
│   │       └── xmlui-orange-on-default.ts
│   └── tsconfig.json
├── LICENSE
├── package-lock.json
├── package.json
├── packages
│   ├── xmlui-animations
│   │   ├── .gitignore
│   │   ├── CHANGELOG.md
│   │   ├── demo
│   │   │   └── Main.xmlui
│   │   ├── index.html
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── Animation.tsx
│   │   │   ├── AnimationNative.tsx
│   │   │   ├── FadeAnimation.tsx
│   │   │   ├── FadeInAnimation.tsx
│   │   │   ├── FadeOutAnimation.tsx
│   │   │   ├── index.tsx
│   │   │   ├── ScaleAnimation.tsx
│   │   │   └── SlideInAnimation.tsx
│   │   └── tsconfig.json
│   ├── xmlui-devtools
│   │   ├── .gitignore
│   │   ├── CHANGELOG.md
│   │   ├── demo
│   │   │   └── Main.xmlui
│   │   ├── index.html
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── devtools
│   │   │   │   ├── DevTools.tsx
│   │   │   │   ├── DevToolsNative.module.scss
│   │   │   │   ├── DevToolsNative.tsx
│   │   │   │   ├── ModalDialog.module.scss
│   │   │   │   ├── ModalDialog.tsx
│   │   │   │   ├── ModalVisibilityContext.tsx
│   │   │   │   ├── Tooltip.module.scss
│   │   │   │   ├── Tooltip.tsx
│   │   │   │   └── utils.ts
│   │   │   ├── editor
│   │   │   │   └── Editor.tsx
│   │   │   └── index.tsx
│   │   ├── tsconfig.json
│   │   └── vite.config-overrides.ts
│   ├── xmlui-hello-world
│   │   ├── .gitignore
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── HelloWorld.module.scss
│   │   │   ├── HelloWorld.tsx
│   │   │   ├── HelloWorldNative.tsx
│   │   │   └── index.tsx
│   │   └── tsconfig.json
│   ├── xmlui-os-frames
│   │   ├── .gitignore
│   │   ├── demo
│   │   │   └── Main.xmlui
│   │   ├── index.html
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── index.tsx
│   │   │   ├── IPhoneFrame.module.scss
│   │   │   ├── IPhoneFrame.tsx
│   │   │   ├── MacOSAppFrame.module.scss
│   │   │   ├── MacOSAppFrame.tsx
│   │   │   ├── WindowsAppFrame.module.scss
│   │   │   └── WindowsAppFrame.tsx
│   │   └── tsconfig.json
│   ├── xmlui-pdf
│   │   ├── .gitignore
│   │   ├── CHANGELOG.md
│   │   ├── demo
│   │   │   ├── components
│   │   │   │   └── Pdf.xmlui
│   │   │   └── Main.xmlui
│   │   ├── index.html
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── index.tsx
│   │   │   ├── LazyPdfNative.tsx
│   │   │   ├── Pdf.module.scss
│   │   │   └── Pdf.tsx
│   │   └── tsconfig.json
│   ├── xmlui-playground
│   │   ├── .gitignore
│   │   ├── CHANGELOG.md
│   │   ├── demo
│   │   │   └── Main.xmlui
│   │   ├── index.html
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── hooks
│   │   │   │   ├── usePlayground.ts
│   │   │   │   └── useToast.ts
│   │   │   ├── index.tsx
│   │   │   ├── playground
│   │   │   │   ├── Box.module.scss
│   │   │   │   ├── Box.tsx
│   │   │   │   ├── CodeSelector.tsx
│   │   │   │   ├── ConfirmationDialog.module.scss
│   │   │   │   ├── ConfirmationDialog.tsx
│   │   │   │   ├── Editor.tsx
│   │   │   │   ├── Header.module.scss
│   │   │   │   ├── Header.tsx
│   │   │   │   ├── Playground.tsx
│   │   │   │   ├── PlaygroundContent.module.scss
│   │   │   │   ├── PlaygroundContent.tsx
│   │   │   │   ├── PlaygroundNative.module.scss
│   │   │   │   ├── PlaygroundNative.tsx
│   │   │   │   ├── Preview.module.scss
│   │   │   │   ├── Preview.tsx
│   │   │   │   ├── Select.module.scss
│   │   │   │   ├── StandalonePlayground.tsx
│   │   │   │   ├── StandalonePlaygroundNative.module.scss
│   │   │   │   ├── StandalonePlaygroundNative.tsx
│   │   │   │   ├── ThemeSwitcher.module.scss
│   │   │   │   ├── ThemeSwitcher.tsx
│   │   │   │   ├── ToneSwitcher.tsx
│   │   │   │   ├── Tooltip.module.scss
│   │   │   │   ├── Tooltip.tsx
│   │   │   │   └── utils.ts
│   │   │   ├── providers
│   │   │   │   ├── Toast.module.scss
│   │   │   │   └── ToastProvider.tsx
│   │   │   ├── state
│   │   │   │   └── store.ts
│   │   │   ├── themes
│   │   │   │   └── theme.ts
│   │   │   └── utils
│   │   │       └── helpers.ts
│   │   └── tsconfig.json
│   ├── xmlui-search
│   │   ├── .gitignore
│   │   ├── CHANGELOG.md
│   │   ├── demo
│   │   │   └── Main.xmlui
│   │   ├── index.html
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── index.tsx
│   │   │   ├── Search.module.scss
│   │   │   └── Search.tsx
│   │   └── tsconfig.json
│   ├── xmlui-spreadsheet
│   │   ├── .gitignore
│   │   ├── demo
│   │   │   └── Main.xmlui
│   │   ├── index.html
│   │   ├── index.ts
│   │   ├── meta
│   │   │   └── componentsMetadata.ts
│   │   ├── package.json
│   │   ├── src
│   │   │   ├── index.tsx
│   │   │   ├── Spreadsheet.tsx
│   │   │   └── SpreadsheetNative.tsx
│   │   └── tsconfig.json
│   └── xmlui-website-blocks
│       ├── .gitignore
│       ├── CHANGELOG.md
│       ├── demo
│       │   ├── components
│       │   │   ├── HeroBackgroundBreakoutPage.xmlui
│       │   │   ├── HeroBackgroundsPage.xmlui
│       │   │   ├── HeroContentsPage.xmlui
│       │   │   ├── HeroTextAlignPage.xmlui
│       │   │   ├── HeroTextPage.xmlui
│       │   │   └── HeroTonesPage.xmlui
│       │   ├── Main.xmlui
│       │   └── themes
│       │       └── default.ts
│       ├── index.html
│       ├── index.ts
│       ├── meta
│       │   └── componentsMetadata.ts
│       ├── package.json
│       ├── public
│       │   └── resources
│       │       ├── building.jpg
│       │       └── xmlui-logo.svg
│       ├── src
│       │   ├── Carousel
│       │   │   ├── Carousel.module.scss
│       │   │   ├── Carousel.tsx
│       │   │   ├── CarouselContext.tsx
│       │   │   └── CarouselNative.tsx
│       │   ├── FancyButton
│       │   │   ├── FancyButton.module.scss
│       │   │   ├── FancyButton.tsx
│       │   │   └── FancyButton.xmlui
│       │   ├── Hello
│       │   │   ├── Hello.tsx
│       │   │   ├── Hello.xmlui
│       │   │   └── Hello.xmlui.xs
│       │   ├── HeroSection
│       │   │   ├── HeroSection.module.scss
│       │   │   ├── HeroSection.tsx
│       │   │   └── HeroSectionNative.tsx
│       │   ├── index.tsx
│       │   ├── ScrollToTop
│       │   │   ├── ScrollToTop.module.scss
│       │   │   ├── ScrollToTop.tsx
│       │   │   └── ScrollToTopNative.tsx
│       │   └── vite-env.d.ts
│       └── tsconfig.json
├── README.md
├── tools
│   ├── codefence
│   │   └── xmlui-code-fence-docs.md
│   ├── create-app
│   │   ├── .gitignore
│   │   ├── CHANGELOG.md
│   │   ├── create-app.ts
│   │   ├── helpers
│   │   │   ├── copy.ts
│   │   │   ├── get-pkg-manager.ts
│   │   │   ├── git.ts
│   │   │   ├── install.ts
│   │   │   ├── is-folder-empty.ts
│   │   │   ├── is-writeable.ts
│   │   │   ├── make-dir.ts
│   │   │   └── validate-pkg.ts
│   │   ├── index.ts
│   │   ├── package.json
│   │   ├── templates
│   │   │   ├── default
│   │   │   │   └── ts
│   │   │   │       ├── gitignore
│   │   │   │       ├── index.html
│   │   │   │       ├── index.ts
│   │   │   │       ├── public
│   │   │   │       │   ├── mockServiceWorker.js
│   │   │   │       │   ├── resources
│   │   │   │       │   │   ├── favicon.ico
│   │   │   │       │   │   └── xmlui-logo.svg
│   │   │   │       │   └── serve.json
│   │   │   │       └── src
│   │   │   │           ├── components
│   │   │   │           │   ├── ApiAware.xmlui
│   │   │   │           │   ├── Home.xmlui
│   │   │   │           │   ├── IncButton.xmlui
│   │   │   │           │   └── PagePanel.xmlui
│   │   │   │           ├── config.ts
│   │   │   │           └── Main.xmlui
│   │   │   ├── index.ts
│   │   │   └── types.ts
│   │   └── tsconfig.json
│   ├── create-xmlui-hello-world
│   │   ├── index.js
│   │   └── package.json
│   └── vscode
│       ├── .gitignore
│       ├── .vscode
│       │   ├── launch.json
│       │   └── tasks.json
│       ├── .vscodeignore
│       ├── build.sh
│       ├── CHANGELOG.md
│       ├── esbuild.js
│       ├── eslint.config.mjs
│       ├── formatter-docs.md
│       ├── generate-test-sample.sh
│       ├── LICENSE.md
│       ├── package-lock.json
│       ├── package.json
│       ├── README.md
│       ├── resources
│       │   ├── xmlui-logo.png
│       │   └── xmlui-markup-syntax-highlighting.png
│       ├── src
│       │   ├── extension.ts
│       │   └── server.ts
│       ├── syntaxes
│       │   └── xmlui.tmLanguage.json
│       ├── test-samples
│       │   └── sample.xmlui
│       ├── tsconfig.json
│       └── tsconfig.tsbuildinfo
├── turbo.json
└── xmlui
    ├── .gitignore
    ├── bin
    │   ├── bootstrap.js
    │   ├── build-lib.ts
    │   ├── build.ts
    │   ├── index.ts
    │   ├── preview.ts
    │   ├── start.ts
    │   ├── vite-xmlui-plugin.ts
    │   └── viteConfig.ts
    ├── CHANGELOG.md
    ├── conventions
    │   ├── component-qa-checklist.md
    │   ├── copilot-conventions.md
    │   ├── create-xmlui-components.md
    │   └── testing-conventions.md
    ├── dev-docs
    │   ├── accessibility.md
    │   ├── actions.md
    │   ├── AppRoot.md
    │   ├── component-apis.md
    │   ├── component-rendering.md
    │   ├── component-review-checklist.md
    │   ├── data-sources.md
    │   ├── e2e-summary.md
    │   ├── expression-evaluation.md
    │   ├── glossary.md
    │   ├── helper-components.md
    │   ├── index.md
    │   ├── loaders.md
    │   ├── next
    │   │   ├── component-dev-guide.md
    │   │   ├── configuration-management-enhancement-summary.md
    │   │   ├── documentation-scripts-refactoring-complete-summary.md
    │   │   ├── documentation-scripts-refactoring-plan.md
    │   │   ├── duplicate-pattern-extraction-summary.md
    │   │   ├── error-handling-standardization-summary.md
    │   │   ├── generating-component-reference.md
    │   │   ├── index.md
    │   │   ├── logging-consistency-implementation-summary.md
    │   │   ├── project-build.md
    │   │   ├── project-structure.md
    │   │   ├── theme-context.md
    │   │   ├── tiptap-design-considerations.md
    │   │   ├── working-with-code.md
    │   │   ├── xmlui-runtime-architecture
    │   │   └── xmlui-wcag-accessibility-report.md
    │   ├── react-fundamentals.md
    │   ├── release-method.md
    │   ├── rendering-fundamentals.md
    │   ├── reusable-components.md
    │   ├── standalone-apps.md
    │   ├── state-management.md
    │   └── xmlui-extensibility.xlsx
    ├── package.json
    ├── playwright.config.ts
    ├── scripts
    │   ├── coverage-only.js
    │   ├── e2e-test-summary.js
    │   ├── generate-docs
    │   │   ├── build-downloads-map.mjs
    │   │   ├── build-pages-map.mjs
    │   │   ├── components-config.json
    │   │   ├── configuration-management.mjs
    │   │   ├── constants.mjs
    │   │   ├── create-theme-files.mjs
    │   │   ├── DocsGenerator.mjs
    │   │   ├── error-handling.mjs
    │   │   ├── extensions-config.json
    │   │   ├── folders.mjs
    │   │   ├── generate-summary-files.mjs
    │   │   ├── get-docs.mjs
    │   │   ├── input-handler.mjs
    │   │   ├── logger.mjs
    │   │   ├── logging-standards.mjs
    │   │   ├── MetadataProcessor.mjs
    │   │   ├── pattern-utilities.mjs
    │   │   └── utils.mjs
    │   ├── get-langserver-metadata.mjs
    │   ├── inline-links.mjs
    │   └── README-e2e-summary.md
    ├── src
    │   ├── abstractions
    │   │   ├── _conventions.md
    │   │   ├── ActionDefs.ts
    │   │   ├── AppContextDefs.ts
    │   │   ├── ComponentDefs.ts
    │   │   ├── ContainerDefs.ts
    │   │   ├── ExtensionDefs.ts
    │   │   ├── FunctionDefs.ts
    │   │   ├── RendererDefs.ts
    │   │   ├── scripting
    │   │   │   ├── BlockScope.ts
    │   │   │   ├── Compilation.ts
    │   │   │   ├── LogicalThread.ts
    │   │   │   ├── LoopScope.ts
    │   │   │   ├── modules.ts
    │   │   │   ├── ScriptParserError.ts
    │   │   │   ├── Token.ts
    │   │   │   ├── TryScope.ts
    │   │   │   └── TryScopeExp.ts
    │   │   └── ThemingDefs.ts
    │   ├── components
    │   │   ├── _conventions.md
    │   │   ├── abstractions.ts
    │   │   ├── Accordion
    │   │   │   ├── Accordion.md
    │   │   │   ├── Accordion.module.scss
    │   │   │   ├── Accordion.spec.ts
    │   │   │   ├── Accordion.tsx
    │   │   │   ├── AccordionContext.tsx
    │   │   │   ├── AccordionItem.tsx
    │   │   │   ├── AccordionItemNative.tsx
    │   │   │   └── AccordionNative.tsx
    │   │   ├── Animation
    │   │   │   └── AnimationNative.tsx
    │   │   ├── APICall
    │   │   │   ├── APICall.md
    │   │   │   ├── APICall.spec.ts
    │   │   │   ├── APICall.tsx
    │   │   │   └── APICallNative.tsx
    │   │   ├── App
    │   │   │   ├── App.md
    │   │   │   ├── App.module.scss
    │   │   │   ├── App.spec.ts
    │   │   │   ├── App.tsx
    │   │   │   ├── AppLayoutContext.ts
    │   │   │   ├── AppNative.tsx
    │   │   │   ├── AppStateContext.ts
    │   │   │   ├── doc-resources
    │   │   │   │   ├── condensed-sticky.xmlui
    │   │   │   │   ├── condensed.xmlui
    │   │   │   │   ├── horizontal-sticky.xmlui
    │   │   │   │   ├── horizontal.xmlui
    │   │   │   │   ├── vertical-full-header.xmlui
    │   │   │   │   ├── vertical-sticky.xmlui
    │   │   │   │   └── vertical.xmlui
    │   │   │   ├── IndexerContext.ts
    │   │   │   ├── LinkInfoContext.ts
    │   │   │   ├── SearchContext.tsx
    │   │   │   ├── Sheet.module.scss
    │   │   │   └── Sheet.tsx
    │   │   ├── AppHeader
    │   │   │   ├── AppHeader.md
    │   │   │   ├── AppHeader.module.scss
    │   │   │   ├── AppHeader.spec.ts
    │   │   │   ├── AppHeader.tsx
    │   │   │   └── AppHeaderNative.tsx
    │   │   ├── AppState
    │   │   │   ├── AppState.md
    │   │   │   ├── AppState.spec.ts
    │   │   │   ├── AppState.tsx
    │   │   │   └── AppStateNative.tsx
    │   │   ├── AutoComplete
    │   │   │   ├── AutoComplete.md
    │   │   │   ├── AutoComplete.module.scss
    │   │   │   ├── AutoComplete.spec.ts
    │   │   │   ├── AutoComplete.tsx
    │   │   │   ├── AutoCompleteContext.tsx
    │   │   │   └── AutoCompleteNative.tsx
    │   │   ├── Avatar
    │   │   │   ├── Avatar.md
    │   │   │   ├── Avatar.module.scss
    │   │   │   ├── Avatar.spec.ts
    │   │   │   ├── Avatar.tsx
    │   │   │   └── AvatarNative.tsx
    │   │   ├── Backdrop
    │   │   │   ├── Backdrop.md
    │   │   │   ├── Backdrop.module.scss
    │   │   │   ├── Backdrop.spec.ts
    │   │   │   ├── Backdrop.tsx
    │   │   │   └── BackdropNative.tsx
    │   │   ├── Badge
    │   │   │   ├── Badge.md
    │   │   │   ├── Badge.module.scss
    │   │   │   ├── Badge.spec.ts
    │   │   │   ├── Badge.tsx
    │   │   │   └── BadgeNative.tsx
    │   │   ├── Bookmark
    │   │   │   ├── Bookmark.md
    │   │   │   ├── Bookmark.module.scss
    │   │   │   ├── Bookmark.spec.ts
    │   │   │   ├── Bookmark.tsx
    │   │   │   └── BookmarkNative.tsx
    │   │   ├── Breakout
    │   │   │   ├── Breakout.module.scss
    │   │   │   ├── Breakout.spec.ts
    │   │   │   ├── Breakout.tsx
    │   │   │   └── BreakoutNative.tsx
    │   │   ├── Button
    │   │   │   ├── Button-style.spec.ts
    │   │   │   ├── Button.md
    │   │   │   ├── Button.module.scss
    │   │   │   ├── Button.spec.ts
    │   │   │   ├── Button.tsx
    │   │   │   └── ButtonNative.tsx
    │   │   ├── Card
    │   │   │   ├── Card.md
    │   │   │   ├── Card.module.scss
    │   │   │   ├── Card.spec.ts
    │   │   │   ├── Card.tsx
    │   │   │   └── CardNative.tsx
    │   │   ├── Carousel
    │   │   │   ├── Carousel.md
    │   │   │   ├── Carousel.module.scss
    │   │   │   ├── Carousel.spec.ts
    │   │   │   ├── Carousel.tsx
    │   │   │   ├── CarouselContext.tsx
    │   │   │   ├── CarouselItem.tsx
    │   │   │   ├── CarouselItemNative.tsx
    │   │   │   └── CarouselNative.tsx
    │   │   ├── ChangeListener
    │   │   │   ├── ChangeListener.md
    │   │   │   ├── ChangeListener.spec.ts
    │   │   │   ├── ChangeListener.tsx
    │   │   │   └── ChangeListenerNative.tsx
    │   │   ├── chart-color-schemes.ts
    │   │   ├── Charts
    │   │   │   ├── AreaChart
    │   │   │   │   ├── AreaChart.md
    │   │   │   │   ├── AreaChart.spec.ts
    │   │   │   │   ├── AreaChart.tsx
    │   │   │   │   └── AreaChartNative.tsx
    │   │   │   ├── BarChart
    │   │   │   │   ├── BarChart.md
    │   │   │   │   ├── BarChart.module.scss
    │   │   │   │   ├── BarChart.spec.ts
    │   │   │   │   ├── BarChart.tsx
    │   │   │   │   └── BarChartNative.tsx
    │   │   │   ├── DonutChart
    │   │   │   │   ├── DonutChart.spec.ts
    │   │   │   │   └── DonutChart.tsx
    │   │   │   ├── LabelList
    │   │   │   │   ├── LabelList.spec.ts
    │   │   │   │   ├── LabelList.tsx
    │   │   │   │   ├── LabelListNative.module.scss
    │   │   │   │   └── LabelListNative.tsx
    │   │   │   ├── Legend
    │   │   │   │   ├── Legend.spec.ts
    │   │   │   │   ├── Legend.tsx
    │   │   │   │   └── LegendNative.tsx
    │   │   │   ├── LineChart
    │   │   │   │   ├── LineChart.md
    │   │   │   │   ├── LineChart.module.scss
    │   │   │   │   ├── LineChart.spec.ts
    │   │   │   │   ├── LineChart.tsx
    │   │   │   │   └── LineChartNative.tsx
    │   │   │   ├── PieChart
    │   │   │   │   ├── PieChart.md
    │   │   │   │   ├── PieChart.spec.ts
    │   │   │   │   ├── PieChart.tsx
    │   │   │   │   ├── PieChartNative.module.scss
    │   │   │   │   └── PieChartNative.tsx
    │   │   │   ├── RadarChart
    │   │   │   │   ├── RadarChart.md
    │   │   │   │   ├── RadarChart.spec.ts
    │   │   │   │   ├── RadarChart.tsx
    │   │   │   │   └── RadarChartNative.tsx
    │   │   │   ├── Tooltip
    │   │   │   │   ├── TooltipContent.module.scss
    │   │   │   │   ├── TooltipContent.spec.ts
    │   │   │   │   └── TooltipContent.tsx
    │   │   │   └── utils
    │   │   │       ├── abstractions.ts
    │   │   │       └── ChartProvider.tsx
    │   │   ├── Checkbox
    │   │   │   ├── Checkbox.md
    │   │   │   ├── Checkbox.spec.ts
    │   │   │   └── Checkbox.tsx
    │   │   ├── CodeBlock
    │   │   │   ├── CodeBlock.module.scss
    │   │   │   ├── CodeBlock.spec.ts
    │   │   │   ├── CodeBlock.tsx
    │   │   │   ├── CodeBlockNative.tsx
    │   │   │   └── highlight-code.ts
    │   │   ├── collectedComponentMetadata.ts
    │   │   ├── ColorPicker
    │   │   │   ├── ColorPicker.md
    │   │   │   ├── ColorPicker.module.scss
    │   │   │   ├── ColorPicker.spec.ts
    │   │   │   ├── ColorPicker.tsx
    │   │   │   └── ColorPickerNative.tsx
    │   │   ├── Column
    │   │   │   ├── Column.md
    │   │   │   ├── Column.tsx
    │   │   │   ├── ColumnNative.tsx
    │   │   │   ├── doc-resources
    │   │   │   │   └── list-component-data.js
    │   │   │   └── TableContext.tsx
    │   │   ├── component-utils.ts
    │   │   ├── ComponentProvider.tsx
    │   │   ├── ComponentRegistryContext.tsx
    │   │   ├── container-helpers.tsx
    │   │   ├── ContentSeparator
    │   │   │   ├── ContentSeparator.md
    │   │   │   ├── ContentSeparator.module.scss
    │   │   │   ├── ContentSeparator.spec.ts
    │   │   │   ├── ContentSeparator.tsx
    │   │   │   └── ContentSeparatorNative.tsx
    │   │   ├── DataSource
    │   │   │   ├── DataSource.md
    │   │   │   └── DataSource.tsx
    │   │   ├── DateInput
    │   │   │   ├── DateInput.md
    │   │   │   ├── DateInput.module.scss
    │   │   │   ├── DateInput.spec.ts
    │   │   │   ├── DateInput.tsx
    │   │   │   └── DateInputNative.tsx
    │   │   ├── DatePicker
    │   │   │   ├── DatePicker.md
    │   │   │   ├── DatePicker.module.scss
    │   │   │   ├── DatePicker.spec.ts
    │   │   │   ├── DatePicker.tsx
    │   │   │   └── DatePickerNative.tsx
    │   │   ├── DropdownMenu
    │   │   │   ├── DropdownMenu.md
    │   │   │   ├── DropdownMenu.module.scss
    │   │   │   ├── DropdownMenu.spec.ts
    │   │   │   ├── DropdownMenu.tsx
    │   │   │   ├── DropdownMenuNative.tsx
    │   │   │   ├── MenuItem.md
    │   │   │   └── SubMenuItem.md
    │   │   ├── EmojiSelector
    │   │   │   ├── EmojiSelector.md
    │   │   │   ├── EmojiSelector.spec.ts
    │   │   │   ├── EmojiSelector.tsx
    │   │   │   └── EmojiSelectorNative.tsx
    │   │   ├── ExpandableItem
    │   │   │   ├── ExpandableItem.module.scss
    │   │   │   ├── ExpandableItem.spec.ts
    │   │   │   ├── ExpandableItem.tsx
    │   │   │   └── ExpandableItemNative.tsx
    │   │   ├── FileInput
    │   │   │   ├── FileInput.md
    │   │   │   ├── FileInput.module.scss
    │   │   │   ├── FileInput.spec.ts
    │   │   │   ├── FileInput.tsx
    │   │   │   └── FileInputNative.tsx
    │   │   ├── FileUploadDropZone
    │   │   │   ├── FileUploadDropZone.md
    │   │   │   ├── FileUploadDropZone.module.scss
    │   │   │   ├── FileUploadDropZone.spec.ts
    │   │   │   ├── FileUploadDropZone.tsx
    │   │   │   └── FileUploadDropZoneNative.tsx
    │   │   ├── FlowLayout
    │   │   │   ├── FlowLayout.md
    │   │   │   ├── FlowLayout.module.scss
    │   │   │   ├── FlowLayout.spec.ts
    │   │   │   ├── FlowLayout.spec.ts-snapshots
    │   │   │   │   └── Edge-cases-boxShadow-is-not-clipped-1-non-smoke-darwin.png
    │   │   │   ├── FlowLayout.tsx
    │   │   │   └── FlowLayoutNative.tsx
    │   │   ├── Footer
    │   │   │   ├── Footer.md
    │   │   │   ├── Footer.module.scss
    │   │   │   ├── Footer.spec.ts
    │   │   │   ├── Footer.tsx
    │   │   │   └── FooterNative.tsx
    │   │   ├── Form
    │   │   │   ├── Form.md
    │   │   │   ├── Form.module.scss
    │   │   │   ├── Form.spec.ts
    │   │   │   ├── Form.tsx
    │   │   │   ├── formActions.ts
    │   │   │   ├── FormContext.ts
    │   │   │   └── FormNative.tsx
    │   │   ├── FormItem
    │   │   │   ├── FormItem.md
    │   │   │   ├── FormItem.module.scss
    │   │   │   ├── FormItem.spec.ts
    │   │   │   ├── FormItem.tsx
    │   │   │   ├── FormItemNative.tsx
    │   │   │   ├── HelperText.module.scss
    │   │   │   ├── HelperText.tsx
    │   │   │   ├── ItemWithLabel.tsx
    │   │   │   └── Validations.ts
    │   │   ├── FormSection
    │   │   │   ├── FormSection.md
    │   │   │   ├── FormSection.ts
    │   │   │   └── FormSection.xmlui
    │   │   ├── Fragment
    │   │   │   ├── Fragment.spec.ts
    │   │   │   └── Fragment.tsx
    │   │   ├── Heading
    │   │   │   ├── abstractions.ts
    │   │   │   ├── H1.md
    │   │   │   ├── H1.spec.ts
    │   │   │   ├── H2.md
    │   │   │   ├── H2.spec.ts
    │   │   │   ├── H3.md
    │   │   │   ├── H3.spec.ts
    │   │   │   ├── H4.md
    │   │   │   ├── H4.spec.ts
    │   │   │   ├── H5.md
    │   │   │   ├── H5.spec.ts
    │   │   │   ├── H6.md
    │   │   │   ├── H6.spec.ts
    │   │   │   ├── Heading.md
    │   │   │   ├── Heading.module.scss
    │   │   │   ├── Heading.spec.ts
    │   │   │   ├── Heading.tsx
    │   │   │   └── HeadingNative.tsx
    │   │   ├── HoverCard
    │   │   │   ├── HoverCard.tsx
    │   │   │   └── HovercardNative.tsx
    │   │   ├── HtmlTags
    │   │   │   ├── HtmlTags.module.scss
    │   │   │   ├── HtmlTags.spec.ts
    │   │   │   └── HtmlTags.tsx
    │   │   ├── Icon
    │   │   │   ├── AdmonitionDanger.tsx
    │   │   │   ├── AdmonitionInfo.tsx
    │   │   │   ├── AdmonitionNote.tsx
    │   │   │   ├── AdmonitionTip.tsx
    │   │   │   ├── AdmonitionWarning.tsx
    │   │   │   ├── ApiIcon.tsx
    │   │   │   ├── ArrowDropDown.module.scss
    │   │   │   ├── ArrowDropDown.tsx
    │   │   │   ├── ArrowDropUp.module.scss
    │   │   │   ├── ArrowDropUp.tsx
    │   │   │   ├── ArrowLeft.module.scss
    │   │   │   ├── ArrowLeft.tsx
    │   │   │   ├── ArrowRight.module.scss
    │   │   │   ├── ArrowRight.tsx
    │   │   │   ├── Attach.tsx
    │   │   │   ├── Binding.module.scss
    │   │   │   ├── Binding.tsx
    │   │   │   ├── BoardIcon.tsx
    │   │   │   ├── BoxIcon.tsx
    │   │   │   ├── CheckIcon.tsx
    │   │   │   ├── ChevronDownIcon.tsx
    │   │   │   ├── ChevronLeft.tsx
    │   │   │   ├── ChevronRight.tsx
    │   │   │   ├── ChevronUpIcon.tsx
    │   │   │   ├── CodeFileIcon.tsx
    │   │   │   ├── CodeSandbox.tsx
    │   │   │   ├── CompactListIcon.tsx
    │   │   │   ├── ContentCopyIcon.tsx
    │   │   │   ├── DarkToLightIcon.tsx
    │   │   │   ├── DatabaseIcon.module.scss
    │   │   │   ├── DatabaseIcon.tsx
    │   │   │   ├── DocFileIcon.tsx
    │   │   │   ├── DocIcon.tsx
    │   │   │   ├── DotMenuHorizontalIcon.tsx
    │   │   │   ├── DotMenuIcon.tsx
    │   │   │   ├── EmailIcon.tsx
    │   │   │   ├── EmptyFolderIcon.tsx
    │   │   │   ├── ErrorIcon.tsx
    │   │   │   ├── ExpressionIcon.tsx
    │   │   │   ├── FillPlusCricleIcon.tsx
    │   │   │   ├── FilterIcon.tsx
    │   │   │   ├── FolderIcon.tsx
    │   │   │   ├── GlobeIcon.tsx
    │   │   │   ├── HomeIcon.tsx
    │   │   │   ├── HyperLinkIcon.tsx
    │   │   │   ├── Icon.md
    │   │   │   ├── Icon.module.scss
    │   │   │   ├── Icon.spec.ts
    │   │   │   ├── Icon.tsx
    │   │   │   ├── IconNative.tsx
    │   │   │   ├── ImageFileIcon.tsx
    │   │   │   ├── Inspect.tsx
    │   │   │   ├── LightToDark.tsx
    │   │   │   ├── LinkIcon.tsx
    │   │   │   ├── ListIcon.tsx
    │   │   │   ├── LooseListIcon.tsx
    │   │   │   ├── MoonIcon.tsx
    │   │   │   ├── MoreOptionsIcon.tsx
    │   │   │   ├── NoSortIcon.tsx
    │   │   │   ├── PDFIcon.tsx
    │   │   │   ├── PenIcon.tsx
    │   │   │   ├── PhoneIcon.tsx
    │   │   │   ├── PhotoIcon.tsx
    │   │   │   ├── PlusIcon.tsx
    │   │   │   ├── SearchIcon.tsx
    │   │   │   ├── ShareIcon.tsx
    │   │   │   ├── SortAscendingIcon.tsx
    │   │   │   ├── SortDescendingIcon.tsx
    │   │   │   ├── StarsIcon.tsx
    │   │   │   ├── SunIcon.tsx
    │   │   │   ├── svg
    │   │   │   │   ├── admonition_danger.svg
    │   │   │   │   ├── admonition_info.svg
    │   │   │   │   ├── admonition_note.svg
    │   │   │   │   ├── admonition_tip.svg
    │   │   │   │   ├── admonition_warning.svg
    │   │   │   │   ├── api.svg
    │   │   │   │   ├── arrow-dropdown.svg
    │   │   │   │   ├── arrow-left.svg
    │   │   │   │   ├── arrow-right.svg
    │   │   │   │   ├── arrow-up.svg
    │   │   │   │   ├── attach.svg
    │   │   │   │   ├── binding.svg
    │   │   │   │   ├── box.svg
    │   │   │   │   ├── bulb.svg
    │   │   │   │   ├── code-file.svg
    │   │   │   │   ├── code-sandbox.svg
    │   │   │   │   ├── dark_to_light.svg
    │   │   │   │   ├── database.svg
    │   │   │   │   ├── doc.svg
    │   │   │   │   ├── empty-folder.svg
    │   │   │   │   ├── expression.svg
    │   │   │   │   ├── eye-closed.svg
    │   │   │   │   ├── eye-dark.svg
    │   │   │   │   ├── eye.svg
    │   │   │   │   ├── file-text.svg
    │   │   │   │   ├── filter.svg
    │   │   │   │   ├── folder.svg
    │   │   │   │   ├── img.svg
    │   │   │   │   ├── inspect.svg
    │   │   │   │   ├── light_to_dark.svg
    │   │   │   │   ├── moon.svg
    │   │   │   │   ├── pdf.svg
    │   │   │   │   ├── photo.svg
    │   │   │   │   ├── share.svg
    │   │   │   │   ├── stars.svg
    │   │   │   │   ├── sun.svg
    │   │   │   │   ├── trending-down.svg
    │   │   │   │   ├── trending-level.svg
    │   │   │   │   ├── trending-up.svg
    │   │   │   │   ├── txt.svg
    │   │   │   │   ├── unknown-file.svg
    │   │   │   │   ├── unlink.svg
    │   │   │   │   └── xls.svg
    │   │   │   ├── TableDeleteColumnIcon.tsx
    │   │   │   ├── TableDeleteRowIcon.tsx
    │   │   │   ├── TableInsertColumnIcon.tsx
    │   │   │   ├── TableInsertRowIcon.tsx
    │   │   │   ├── TrashIcon.tsx
    │   │   │   ├── TrendingDownIcon.tsx
    │   │   │   ├── TrendingLevelIcon.tsx
    │   │   │   ├── TrendingUpIcon.tsx
    │   │   │   ├── TxtIcon.tsx
    │   │   │   ├── UnknownFileIcon.tsx
    │   │   │   ├── UnlinkIcon.tsx
    │   │   │   ├── UserIcon.tsx
    │   │   │   ├── WarningIcon.tsx
    │   │   │   └── XlsIcon.tsx
    │   │   ├── IconProvider.tsx
    │   │   ├── IconRegistryContext.tsx
    │   │   ├── IFrame
    │   │   │   ├── IFrame.md
    │   │   │   ├── IFrame.module.scss
    │   │   │   ├── IFrame.spec.ts
    │   │   │   ├── IFrame.tsx
    │   │   │   └── IFrameNative.tsx
    │   │   ├── Image
    │   │   │   ├── Image.md
    │   │   │   ├── Image.module.scss
    │   │   │   ├── Image.spec.ts
    │   │   │   ├── Image.tsx
    │   │   │   └── ImageNative.tsx
    │   │   ├── Input
    │   │   │   ├── index.ts
    │   │   │   ├── InputAdornment.module.scss
    │   │   │   ├── InputAdornment.tsx
    │   │   │   ├── InputDivider.module.scss
    │   │   │   ├── InputDivider.tsx
    │   │   │   ├── InputLabel.module.scss
    │   │   │   ├── InputLabel.tsx
    │   │   │   ├── PartialInput.module.scss
    │   │   │   └── PartialInput.tsx
    │   │   ├── InspectButton
    │   │   │   ├── InspectButton.module.scss
    │   │   │   └── InspectButton.tsx
    │   │   ├── Items
    │   │   │   ├── Items.md
    │   │   │   ├── Items.spec.ts
    │   │   │   ├── Items.tsx
    │   │   │   └── ItemsNative.tsx
    │   │   ├── Link
    │   │   │   ├── Link.md
    │   │   │   ├── Link.module.scss
    │   │   │   ├── Link.spec.ts
    │   │   │   ├── Link.tsx
    │   │   │   └── LinkNative.tsx
    │   │   ├── List
    │   │   │   ├── doc-resources
    │   │   │   │   └── list-component-data.js
    │   │   │   ├── List.md
    │   │   │   ├── List.module.scss
    │   │   │   ├── List.spec.ts
    │   │   │   ├── List.tsx
    │   │   │   └── ListNative.tsx
    │   │   ├── Logo
    │   │   │   ├── doc-resources
    │   │   │   │   └── xmlui-logo.svg
    │   │   │   ├── Logo.md
    │   │   │   ├── Logo.tsx
    │   │   │   └── LogoNative.tsx
    │   │   ├── Markdown
    │   │   │   ├── CodeText.module.scss
    │   │   │   ├── CodeText.tsx
    │   │   │   ├── Markdown.md
    │   │   │   ├── Markdown.module.scss
    │   │   │   ├── Markdown.spec.ts
    │   │   │   ├── Markdown.tsx
    │   │   │   ├── MarkdownNative.tsx
    │   │   │   ├── parse-binding-expr.ts
    │   │   │   └── utils.ts
    │   │   ├── metadata-helpers.ts
    │   │   ├── ModalDialog
    │   │   │   ├── ConfirmationModalContextProvider.tsx
    │   │   │   ├── Dialog.module.scss
    │   │   │   ├── Dialog.tsx
    │   │   │   ├── ModalDialog.md
    │   │   │   ├── ModalDialog.module.scss
    │   │   │   ├── ModalDialog.spec.ts
    │   │   │   ├── ModalDialog.tsx
    │   │   │   ├── ModalDialogNative.tsx
    │   │   │   └── ModalVisibilityContext.tsx
    │   │   ├── NavGroup
    │   │   │   ├── NavGroup.md
    │   │   │   ├── NavGroup.module.scss
    │   │   │   ├── NavGroup.spec.ts
    │   │   │   ├── NavGroup.tsx
    │   │   │   ├── NavGroupContext.ts
    │   │   │   └── NavGroupNative.tsx
    │   │   ├── NavLink
    │   │   │   ├── NavLink.md
    │   │   │   ├── NavLink.module.scss
    │   │   │   ├── NavLink.spec.ts
    │   │   │   ├── NavLink.tsx
    │   │   │   └── NavLinkNative.tsx
    │   │   ├── NavPanel
    │   │   │   ├── NavPanel.md
    │   │   │   ├── NavPanel.module.scss
    │   │   │   ├── NavPanel.spec.ts
    │   │   │   ├── NavPanel.tsx
    │   │   │   └── NavPanelNative.tsx
    │   │   ├── NestedApp
    │   │   │   ├── AppWithCodeView.module.scss
    │   │   │   ├── AppWithCodeView.tsx
    │   │   │   ├── AppWithCodeViewNative.tsx
    │   │   │   ├── defaultProps.tsx
    │   │   │   ├── logo.svg
    │   │   │   ├── NestedApp.module.scss
    │   │   │   ├── NestedApp.tsx
    │   │   │   ├── NestedAppNative.tsx
    │   │   │   ├── Tooltip.module.scss
    │   │   │   ├── Tooltip.tsx
    │   │   │   └── utils.ts
    │   │   ├── NoResult
    │   │   │   ├── NoResult.md
    │   │   │   ├── NoResult.module.scss
    │   │   │   ├── NoResult.spec.ts
    │   │   │   ├── NoResult.tsx
    │   │   │   └── NoResultNative.tsx
    │   │   ├── NumberBox
    │   │   │   ├── numberbox-abstractions.ts
    │   │   │   ├── NumberBox.md
    │   │   │   ├── NumberBox.module.scss
    │   │   │   ├── NumberBox.spec.ts
    │   │   │   ├── NumberBox.tsx
    │   │   │   └── NumberBoxNative.tsx
    │   │   ├── Option
    │   │   │   ├── Option.md
    │   │   │   ├── Option.spec.ts
    │   │   │   ├── Option.tsx
    │   │   │   ├── OptionNative.tsx
    │   │   │   └── OptionTypeProvider.tsx
    │   │   ├── PageMetaTitle
    │   │   │   ├── PageMetaTilteNative.tsx
    │   │   │   ├── PageMetaTitle.md
    │   │   │   ├── PageMetaTitle.spec.ts
    │   │   │   └── PageMetaTitle.tsx
    │   │   ├── Pages
    │   │   │   ├── Page.md
    │   │   │   ├── Pages.md
    │   │   │   ├── Pages.module.scss
    │   │   │   ├── Pages.tsx
    │   │   │   └── PagesNative.tsx
    │   │   ├── Pagination
    │   │   │   ├── Pagination.md
    │   │   │   ├── Pagination.module.scss
    │   │   │   ├── Pagination.spec.ts
    │   │   │   ├── Pagination.tsx
    │   │   │   └── PaginationNative.tsx
    │   │   ├── PositionedContainer
    │   │   │   ├── PositionedContainer.module.scss
    │   │   │   ├── PositionedContainer.tsx
    │   │   │   └── PositionedContainerNative.tsx
    │   │   ├── ProfileMenu
    │   │   │   ├── ProfileMenu.module.scss
    │   │   │   └── ProfileMenu.tsx
    │   │   ├── ProgressBar
    │   │   │   ├── ProgressBar.md
    │   │   │   ├── ProgressBar.module.scss
    │   │   │   ├── ProgressBar.spec.ts
    │   │   │   ├── ProgressBar.tsx
    │   │   │   └── ProgressBarNative.tsx
    │   │   ├── Queue
    │   │   │   ├── Queue.md
    │   │   │   ├── Queue.spec.ts
    │   │   │   ├── Queue.tsx
    │   │   │   ├── queueActions.ts
    │   │   │   └── QueueNative.tsx
    │   │   ├── RadioGroup
    │   │   │   ├── RadioGroup.md
    │   │   │   ├── RadioGroup.module.scss
    │   │   │   ├── RadioGroup.spec.ts
    │   │   │   ├── RadioGroup.tsx
    │   │   │   ├── RadioGroupNative.tsx
    │   │   │   ├── RadioItem.tsx
    │   │   │   └── RadioItemNative.tsx
    │   │   ├── RealTimeAdapter
    │   │   │   ├── RealTimeAdapter.tsx
    │   │   │   └── RealTimeAdapterNative.tsx
    │   │   ├── Redirect
    │   │   │   ├── Redirect.md
    │   │   │   ├── Redirect.spec.ts
    │   │   │   └── Redirect.tsx
    │   │   ├── ResponsiveBar
    │   │   │   ├── README.md
    │   │   │   ├── ResponsiveBar.md
    │   │   │   ├── ResponsiveBar.module.scss
    │   │   │   ├── ResponsiveBar.spec.ts
    │   │   │   ├── ResponsiveBar.tsx
    │   │   │   └── ResponsiveBarNative.tsx
    │   │   ├── Select
    │   │   │   ├── HiddenOption.tsx
    │   │   │   ├── OptionContext.ts
    │   │   │   ├── Select.md
    │   │   │   ├── Select.module.scss
    │   │   │   ├── Select.spec.ts
    │   │   │   ├── Select.tsx
    │   │   │   ├── SelectContext.tsx
    │   │   │   └── SelectNative.tsx
    │   │   ├── SelectionStore
    │   │   │   ├── SelectionStore.md
    │   │   │   ├── SelectionStore.tsx
    │   │   │   └── SelectionStoreNative.tsx
    │   │   ├── Slider
    │   │   │   ├── Slider.md
    │   │   │   ├── Slider.module.scss
    │   │   │   ├── Slider.spec.ts
    │   │   │   ├── Slider.tsx
    │   │   │   └── SliderNative.tsx
    │   │   ├── Slot
    │   │   │   ├── Slot.md
    │   │   │   ├── Slot.spec.ts
    │   │   │   └── Slot.ts
    │   │   ├── SlotItem.tsx
    │   │   ├── SpaceFiller
    │   │   │   ├── SpaceFiller.md
    │   │   │   ├── SpaceFiller.module.scss
    │   │   │   ├── SpaceFiller.spec.ts
    │   │   │   ├── SpaceFiller.tsx
    │   │   │   └── SpaceFillerNative.tsx
    │   │   ├── Spinner
    │   │   │   ├── Spinner.md
    │   │   │   ├── Spinner.module.scss
    │   │   │   ├── Spinner.spec.ts
    │   │   │   ├── Spinner.tsx
    │   │   │   └── SpinnerNative.tsx
    │   │   ├── Splitter
    │   │   │   ├── HSplitter.md
    │   │   │   ├── HSplitter.spec.ts
    │   │   │   ├── Splitter.md
    │   │   │   ├── Splitter.module.scss
    │   │   │   ├── Splitter.spec.ts
    │   │   │   ├── Splitter.tsx
    │   │   │   ├── SplitterNative.tsx
    │   │   │   ├── utils.ts
    │   │   │   ├── VSplitter.md
    │   │   │   └── VSplitter.spec.ts
    │   │   ├── Stack
    │   │   │   ├── CHStack.md
    │   │   │   ├── CHStack.spec.ts
    │   │   │   ├── CVStack.md
    │   │   │   ├── CVStack.spec.ts
    │   │   │   ├── HStack.md
    │   │   │   ├── HStack.spec.ts
    │   │   │   ├── Stack.md
    │   │   │   ├── Stack.module.scss
    │   │   │   ├── Stack.spec.ts
    │   │   │   ├── Stack.tsx
    │   │   │   ├── StackNative.tsx
    │   │   │   ├── VStack.md
    │   │   │   └── VStack.spec.ts
    │   │   ├── StickyBox
    │   │   │   ├── StickyBox.md
    │   │   │   ├── StickyBox.module.scss
    │   │   │   ├── StickyBox.tsx
    │   │   │   └── StickyBoxNative.tsx
    │   │   ├── Switch
    │   │   │   ├── Switch.md
    │   │   │   ├── Switch.spec.ts
    │   │   │   └── Switch.tsx
    │   │   ├── Table
    │   │   │   ├── doc-resources
    │   │   │   │   └── list-component-data.js
    │   │   │   ├── react-table-config.d.ts
    │   │   │   ├── Table.md
    │   │   │   ├── Table.module.scss
    │   │   │   ├── Table.spec.ts
    │   │   │   ├── Table.tsx
    │   │   │   ├── TableNative.tsx
    │   │   │   └── useRowSelection.tsx
    │   │   ├── TableOfContents
    │   │   │   ├── TableOfContents.module.scss
    │   │   │   ├── TableOfContents.spec.ts
    │   │   │   ├── TableOfContents.tsx
    │   │   │   └── TableOfContentsNative.tsx
    │   │   ├── Tabs
    │   │   │   ├── TabContext.tsx
    │   │   │   ├── TabItem.md
    │   │   │   ├── TabItem.tsx
    │   │   │   ├── TabItemNative.tsx
    │   │   │   ├── Tabs.md
    │   │   │   ├── Tabs.module.scss
    │   │   │   ├── Tabs.spec.ts
    │   │   │   ├── Tabs.tsx
    │   │   │   └── TabsNative.tsx
    │   │   ├── Text
    │   │   │   ├── Text.md
    │   │   │   ├── Text.module.scss
    │   │   │   ├── Text.spec.ts
    │   │   │   ├── Text.tsx
    │   │   │   └── TextNative.tsx
    │   │   ├── TextArea
    │   │   │   ├── TextArea.md
    │   │   │   ├── TextArea.module.scss
    │   │   │   ├── TextArea.spec.ts
    │   │   │   ├── TextArea.tsx
    │   │   │   ├── TextAreaNative.tsx
    │   │   │   ├── TextAreaResizable.tsx
    │   │   │   └── useComposedRef.ts
    │   │   ├── TextBox
    │   │   │   ├── TextBox.md
    │   │   │   ├── TextBox.module.scss
    │   │   │   ├── TextBox.spec.ts
    │   │   │   ├── TextBox.tsx
    │   │   │   └── TextBoxNative.tsx
    │   │   ├── Theme
    │   │   │   ├── NotificationToast.tsx
    │   │   │   ├── Theme.md
    │   │   │   ├── Theme.module.scss
    │   │   │   ├── Theme.spec.ts
    │   │   │   ├── Theme.tsx
    │   │   │   └── ThemeNative.tsx
    │   │   ├── TimeInput
    │   │   │   ├── TimeInput.md
    │   │   │   ├── TimeInput.module.scss
    │   │   │   ├── TimeInput.spec.ts
    │   │   │   ├── TimeInput.tsx
    │   │   │   ├── TimeInputNative.tsx
    │   │   │   └── utils.ts
    │   │   ├── Timer
    │   │   │   ├── Timer.md
    │   │   │   ├── Timer.spec.ts
    │   │   │   ├── Timer.tsx
    │   │   │   └── TimerNative.tsx
    │   │   ├── Toggle
    │   │   │   ├── Toggle.module.scss
    │   │   │   └── Toggle.tsx
    │   │   ├── ToneChangerButton
    │   │   │   ├── ToneChangerButton.md
    │   │   │   ├── ToneChangerButton.spec.ts
    │   │   │   └── ToneChangerButton.tsx
    │   │   ├── ToneSwitch
    │   │   │   ├── ToneSwitch.md
    │   │   │   ├── ToneSwitch.module.scss
    │   │   │   ├── ToneSwitch.spec.ts
    │   │   │   ├── ToneSwitch.tsx
    │   │   │   └── ToneSwitchNative.tsx
    │   │   ├── Tooltip
    │   │   │   ├── Tooltip.md
    │   │   │   ├── Tooltip.module.scss
    │   │   │   ├── Tooltip.spec.ts
    │   │   │   ├── Tooltip.tsx
    │   │   │   └── TooltipNative.tsx
    │   │   ├── Tree
    │   │   │   ├── testData.ts
    │   │   │   ├── Tree-dynamic.spec.ts
    │   │   │   ├── Tree-icons.spec.ts
    │   │   │   ├── Tree.md
    │   │   │   ├── Tree.spec.ts
    │   │   │   ├── TreeComponent.module.scss
    │   │   │   ├── TreeComponent.tsx
    │   │   │   └── TreeNative.tsx
    │   │   ├── TreeDisplay
    │   │   │   ├── TreeDisplay.md
    │   │   │   ├── TreeDisplay.module.scss
    │   │   │   ├── TreeDisplay.tsx
    │   │   │   └── TreeDisplayNative.tsx
    │   │   ├── ValidationSummary
    │   │   │   ├── ValidationSummary.module.scss
    │   │   │   └── ValidationSummary.tsx
    │   │   └── VisuallyHidden.tsx
    │   ├── components-core
    │   │   ├── abstractions
    │   │   │   ├── ComponentRenderer.ts
    │   │   │   ├── LoaderRenderer.ts
    │   │   │   ├── standalone.ts
    │   │   │   └── treeAbstractions.ts
    │   │   ├── action
    │   │   │   ├── actions.ts
    │   │   │   ├── APICall.tsx
    │   │   │   ├── FileDownloadAction.tsx
    │   │   │   ├── FileUploadAction.tsx
    │   │   │   ├── NavigateAction.tsx
    │   │   │   └── TimedAction.tsx
    │   │   ├── ApiBoundComponent.tsx
    │   │   ├── appContext
    │   │   │   ├── date-functions.ts
    │   │   │   ├── math-function.ts
    │   │   │   └── misc-utils.ts
    │   │   ├── AppContext.tsx
    │   │   ├── behaviors
    │   │   │   ├── Behavior.tsx
    │   │   │   ├── BehaviorContext.tsx
    │   │   │   └── CoreBehaviors.tsx
    │   │   ├── component-hooks.ts
    │   │   ├── ComponentDecorator.tsx
    │   │   ├── ComponentViewer.tsx
    │   │   ├── CompoundComponent.tsx
    │   │   ├── constants.ts
    │   │   ├── DebugViewProvider.tsx
    │   │   ├── descriptorHelper.ts
    │   │   ├── devtools
    │   │   │   ├── InspectorDialog.module.scss
    │   │   │   ├── InspectorDialog.tsx
    │   │   │   └── InspectorDialogVisibilityContext.tsx
    │   │   ├── EngineError.ts
    │   │   ├── event-handlers.ts
    │   │   ├── InspectorButton.module.scss
    │   │   ├── InspectorContext.tsx
    │   │   ├── interception
    │   │   │   ├── abstractions.ts
    │   │   │   ├── ApiInterceptor.ts
    │   │   │   ├── ApiInterceptorProvider.tsx
    │   │   │   ├── apiInterceptorWorker.ts
    │   │   │   ├── Backend.ts
    │   │   │   ├── Errors.ts
    │   │   │   ├── IndexedDb.ts
    │   │   │   ├── initMock.ts
    │   │   │   ├── InMemoryDb.ts
    │   │   │   ├── ReadonlyCollection.ts
    │   │   │   └── useApiInterceptorContext.tsx
    │   │   ├── loader
    │   │   │   ├── ApiLoader.tsx
    │   │   │   ├── DataLoader.tsx
    │   │   │   ├── ExternalDataLoader.tsx
    │   │   │   ├── Loader.tsx
    │   │   │   ├── MockLoaderRenderer.tsx
    │   │   │   └── PageableLoader.tsx
    │   │   ├── LoaderComponent.tsx
    │   │   ├── markup-check.ts
    │   │   ├── parts.ts
    │   │   ├── renderers.ts
    │   │   ├── rendering
    │   │   │   ├── AppContent.tsx
    │   │   │   ├── AppRoot.tsx
    │   │   │   ├── AppWrapper.tsx
    │   │   │   ├── buildProxy.ts
    │   │   │   ├── collectFnVarDeps.ts
    │   │   │   ├── ComponentAdapter.tsx
    │   │   │   ├── ComponentWrapper.tsx
    │   │   │   ├── Container.tsx
    │   │   │   ├── containers.ts
    │   │   │   ├── ContainerWrapper.tsx
    │   │   │   ├── ErrorBoundary.module.scss
    │   │   │   ├── ErrorBoundary.tsx
    │   │   │   ├── InvalidComponent.module.scss
    │   │   │   ├── InvalidComponent.tsx
    │   │   │   ├── nodeUtils.ts
    │   │   │   ├── reducer.ts
    │   │   │   ├── renderChild.tsx
    │   │   │   ├── StandaloneComponent.tsx
    │   │   │   ├── StateContainer.tsx
    │   │   │   ├── UnknownComponent.module.scss
    │   │   │   ├── UnknownComponent.tsx
    │   │   │   └── valueExtractor.ts
    │   │   ├── reportEngineError.ts
    │   │   ├── RestApiProxy.ts
    │   │   ├── script-runner
    │   │   │   ├── asyncProxy.ts
    │   │   │   ├── AttributeValueParser.ts
    │   │   │   ├── bannedFunctions.ts
    │   │   │   ├── BindingTreeEvaluationContext.ts
    │   │   │   ├── eval-tree-async.ts
    │   │   │   ├── eval-tree-common.ts
    │   │   │   ├── eval-tree-sync.ts
    │   │   │   ├── ParameterParser.ts
    │   │   │   ├── process-statement-async.ts
    │   │   │   ├── process-statement-common.ts
    │   │   │   ├── process-statement-sync.ts
    │   │   │   ├── ScriptingSourceTree.ts
    │   │   │   ├── simplify-expression.ts
    │   │   │   ├── statement-queue.ts
    │   │   │   └── visitors.ts
    │   │   ├── StandaloneApp.tsx
    │   │   ├── StandaloneExtensionManager.ts
    │   │   ├── TableOfContentsContext.tsx
    │   │   ├── theming
    │   │   │   ├── _themes.scss
    │   │   │   ├── component-layout-resolver.ts
    │   │   │   ├── extendThemeUtils.ts
    │   │   │   ├── hvar.ts
    │   │   │   ├── layout-resolver.ts
    │   │   │   ├── parse-layout-props.ts
    │   │   │   ├── StyleContext.tsx
    │   │   │   ├── StyleRegistry.ts
    │   │   │   ├── ThemeContext.tsx
    │   │   │   ├── ThemeProvider.tsx
    │   │   │   ├── themes
    │   │   │   │   ├── base-utils.ts
    │   │   │   │   ├── palette.ts
    │   │   │   │   ├── root.ts
    │   │   │   │   ├── solid.ts
    │   │   │   │   ├── theme-colors.ts
    │   │   │   │   └── xmlui.ts
    │   │   │   ├── themeVars.module.scss
    │   │   │   ├── themeVars.ts
    │   │   │   ├── transformThemeVars.ts
    │   │   │   └── utils.ts
    │   │   ├── utils
    │   │   │   ├── actionUtils.ts
    │   │   │   ├── audio-utils.ts
    │   │   │   ├── compound-utils.ts
    │   │   │   ├── css-utils.ts
    │   │   │   ├── DataLoaderQueryKeyGenerator.ts
    │   │   │   ├── date-utils.ts
    │   │   │   ├── extractParam.ts
    │   │   │   ├── hooks.tsx
    │   │   │   ├── LruCache.ts
    │   │   │   ├── mergeProps.ts
    │   │   │   ├── misc.ts
    │   │   │   ├── request-params.ts
    │   │   │   ├── statementUtils.ts
    │   │   │   └── treeUtils.ts
    │   │   └── xmlui-parser.ts
    │   ├── index-standalone.ts
    │   ├── index.scss
    │   ├── index.ts
    │   ├── language-server
    │   │   ├── server-common.ts
    │   │   ├── server-web-worker.ts
    │   │   ├── server.ts
    │   │   ├── services
    │   │   │   ├── common
    │   │   │   │   ├── docs-generation.ts
    │   │   │   │   ├── lsp-utils.ts
    │   │   │   │   ├── metadata-utils.ts
    │   │   │   │   └── syntax-node-utilities.ts
    │   │   │   ├── completion.ts
    │   │   │   ├── diagnostic.ts
    │   │   │   ├── format.ts
    │   │   │   └── hover.ts
    │   │   └── xmlui-metadata-generated.mjs
    │   ├── logging
    │   │   ├── LoggerContext.tsx
    │   │   ├── LoggerInitializer.tsx
    │   │   ├── LoggerService.ts
    │   │   └── xmlui.ts
    │   ├── logo.svg
    │   ├── parsers
    │   │   ├── common
    │   │   │   ├── GenericToken.ts
    │   │   │   ├── InputStream.ts
    │   │   │   └── utils.ts
    │   │   ├── scripting
    │   │   │   ├── code-behind-collect.ts
    │   │   │   ├── Lexer.ts
    │   │   │   ├── modules.ts
    │   │   │   ├── Parser.ts
    │   │   │   ├── ParserError.ts
    │   │   │   ├── ScriptingNodeTypes.ts
    │   │   │   ├── TokenTrait.ts
    │   │   │   ├── TokenType.ts
    │   │   │   └── tree-visitor.ts
    │   │   ├── style-parser
    │   │   │   ├── errors.ts
    │   │   │   ├── source-tree.ts
    │   │   │   ├── StyleInputStream.ts
    │   │   │   ├── StyleLexer.ts
    │   │   │   ├── StyleParser.ts
    │   │   │   └── tokens.ts
    │   │   └── xmlui-parser
    │   │       ├── CharacterCodes.ts
    │   │       ├── diagnostics.ts
    │   │       ├── fileExtensions.ts
    │   │       ├── index.ts
    │   │       ├── lint.ts
    │   │       ├── parser.ts
    │   │       ├── ParserError.ts
    │   │       ├── scanner.ts
    │   │       ├── syntax-kind.ts
    │   │       ├── syntax-node.ts
    │   │       ├── transform.ts
    │   │       ├── utils.ts
    │   │       ├── xmlui-serializer.ts
    │   │       └── xmlui-tree.ts
    │   ├── react-app-env.d.ts
    │   ├── syntax
    │   │   ├── monaco
    │   │   │   ├── grammar.monacoLanguage.ts
    │   │   │   ├── index.ts
    │   │   │   ├── xmlui-dark.ts
    │   │   │   ├── xmlui-light.ts
    │   │   │   └── xmluiscript.monacoLanguage.ts
    │   │   └── textMate
    │   │       ├── index.ts
    │   │       ├── xmlui-dark.json
    │   │       ├── xmlui-light.json
    │   │       ├── xmlui.json
    │   │       └── xmlui.tmLanguage.json
    │   ├── testing
    │   │   ├── assertions.ts
    │   │   ├── component-test-helpers.ts
    │   │   ├── ComponentDrivers.ts
    │   │   ├── drivers
    │   │   │   ├── DateInputDriver.ts
    │   │   │   ├── ModalDialogDriver.ts
    │   │   │   ├── NumberBoxDriver.ts
    │   │   │   ├── TextBoxDriver.ts
    │   │   │   ├── TimeInputDriver.ts
    │   │   │   ├── TimerDriver.ts
    │   │   │   └── TreeDriver.ts
    │   │   ├── fixtures.ts
    │   │   ├── infrastructure
    │   │   │   ├── index.html
    │   │   │   ├── main.tsx
    │   │   │   ├── public
    │   │   │   │   ├── mockServiceWorker.js
    │   │   │   │   ├── resources
    │   │   │   │   │   ├── bell.svg
    │   │   │   │   │   ├── box.svg
    │   │   │   │   │   ├── doc.svg
    │   │   │   │   │   ├── eye.svg
    │   │   │   │   │   ├── flower-640x480.jpg
    │   │   │   │   │   ├── sun.svg
    │   │   │   │   │   ├── test-image-100x100.jpg
    │   │   │   │   │   └── txt.svg
    │   │   │   │   └── serve.json
    │   │   │   └── TestBed.tsx
    │   │   └── themed-app-test-helpers.ts
    │   └── vite-env.d.ts
    ├── tests
    │   ├── components
    │   │   ├── CodeBlock
    │   │   │   └── hightlight-code.test.ts
    │   │   ├── playground-pattern.test.ts
    │   │   └── Tree
    │   │       └── Tree-states.test.ts
    │   ├── components-core
    │   │   ├── abstractions
    │   │   │   └── treeAbstractions.test.ts
    │   │   ├── container
    │   │   │   └── buildProxy.test.ts
    │   │   ├── interception
    │   │   │   ├── orderBy.test.ts
    │   │   │   ├── ReadOnlyCollection.test.ts
    │   │   │   └── request-param-converter.test.ts
    │   │   ├── scripts-runner
    │   │   │   ├── AttributeValueParser.test.ts
    │   │   │   ├── eval-tree-arrow-async.test.ts
    │   │   │   ├── eval-tree-arrow.test.ts
    │   │   │   ├── eval-tree-func-decl-async.test.ts
    │   │   │   ├── eval-tree-func-decl.test.ts
    │   │   │   ├── eval-tree-pre-post.test.ts
    │   │   │   ├── eval-tree-regression.test.ts
    │   │   │   ├── eval-tree.test.ts
    │   │   │   ├── function-proxy.test.ts
    │   │   │   ├── parser-regression.test.ts
    │   │   │   ├── process-event.test.ts
    │   │   │   ├── process-function.test.ts
    │   │   │   ├── process-implicit-context.test.ts
    │   │   │   ├── process-statement-asgn.test.ts
    │   │   │   ├── process-statement-destruct.test.ts
    │   │   │   ├── process-statement-regs.test.ts
    │   │   │   ├── process-statement-sync.test.ts
    │   │   │   ├── process-statement.test.ts
    │   │   │   ├── process-switch-sync.test.ts
    │   │   │   ├── process-switch.test.ts
    │   │   │   ├── process-try-sync.test.ts
    │   │   │   ├── process-try.test.ts
    │   │   │   └── test-helpers.ts
    │   │   ├── test-metadata-handler.ts
    │   │   ├── theming
    │   │   │   ├── border-segments.test.ts
    │   │   │   ├── component-layout.resolver.test.ts
    │   │   │   ├── layout-property-parser.test.ts
    │   │   │   ├── layout-resolver.test.ts
    │   │   │   ├── layout-resolver2.test.ts
    │   │   │   ├── layout-vp-override.test.ts
    │   │   │   └── padding-segments.test.ts
    │   │   └── utils
    │   │       ├── date-utils.test.ts
    │   │       ├── format-human-elapsed-time.test.ts
    │   │       └── LruCache.test.ts
    │   ├── language-server
    │   │   ├── completion.test.ts
    │   │   ├── format.test.ts
    │   │   ├── hover.test.ts
    │   │   └── mockData.ts
    │   └── parsers
    │       ├── common
    │       │   └── input-stream.test.ts
    │       ├── markdown
    │       │   └── parse-binding-expression.test.ts
    │       ├── parameter-parser.test.ts
    │       ├── paremeter-parser.test.ts
    │       ├── scripting
    │       │   ├── eval-tree-arrow.test.ts
    │       │   ├── eval-tree-pre-post.test.ts
    │       │   ├── eval-tree.test.ts
    │       │   ├── function-proxy.test.ts
    │       │   ├── lexer-literals.test.ts
    │       │   ├── lexer-misc.test.ts
    │       │   ├── module-parse.test.ts
    │       │   ├── parser-arrow.test.ts
    │       │   ├── parser-assignments.test.ts
    │       │   ├── parser-binary.test.ts
    │       │   ├── parser-destructuring.test.ts
    │       │   ├── parser-errors.test.ts
    │       │   ├── parser-expressions.test.ts
    │       │   ├── parser-function.test.ts
    │       │   ├── parser-literals.test.ts
    │       │   ├── parser-primary.test.ts
    │       │   ├── parser-regex.test.ts
    │       │   ├── parser-statements.test.ts
    │       │   ├── parser-unary.test.ts
    │       │   ├── process-event.test.ts
    │       │   ├── process-implicit-context.test.ts
    │       │   ├── process-statement-asgn.test.ts
    │       │   ├── process-statement-destruct.test.ts
    │       │   ├── process-statement-regs.test.ts
    │       │   ├── process-statement-sync.test.ts
    │       │   ├── process-statement.test.ts
    │       │   ├── process-switch-sync.test.ts
    │       │   ├── process-switch.test.ts
    │       │   ├── process-try-sync.test.ts
    │       │   ├── process-try.test.ts
    │       │   ├── simplify-expression.test.ts
    │       │   ├── statement-hooks.test.ts
    │       │   └── test-helpers.ts
    │       ├── style-parser
    │       │   ├── generateHvarChain.test.ts
    │       │   ├── parseHVar.test.ts
    │       │   ├── parser.test.ts
    │       │   └── tokens.test.ts
    │       └── xmlui
    │           ├── lint.test.ts
    │           ├── parser.test.ts
    │           ├── scanner.test.ts
    │           ├── transform.attr.test.ts
    │           ├── transform.circular.test.ts
    │           ├── transform.element.test.ts
    │           ├── transform.errors.test.ts
    │           ├── transform.escape.test.ts
    │           ├── transform.regression.test.ts
    │           ├── transform.script.test.ts
    │           ├── transform.test.ts
    │           └── xmlui.ts
    ├── tests-e2e
    │   ├── api-bound-component-regression.spec.ts
    │   ├── api-call-as-extracted-component.spec.ts
    │   ├── assign-to-object-or-array-regression.spec.ts
    │   ├── binding-regression.spec.ts
    │   ├── children-as-template-context-vars.spec.ts
    │   ├── compound-component.spec.ts
    │   ├── context-vars-regression.spec.ts
    │   ├── data-bindings.spec.ts
    │   ├── datasource-and-api-usage-in-var.spec.ts
    │   ├── datasource-direct-binding.spec.ts
    │   ├── datasource-onLoaded-regression.spec.ts
    │   ├── modify-array-item-regression.spec.ts
    │   ├── namespaces.spec.ts
    │   ├── push-to-array-regression.spec.ts
    │   ├── screen-breakpoints.spec.ts
    │   ├── scripting.spec.ts
    │   ├── state-scope-in-pages.spec.ts
    │   └── state-var-scopes.spec.ts
    ├── tsconfig.bin.json
    ├── tsconfig.json
    ├── tsconfig.node.json
    ├── vite.config.ts
    └── vitest.config.ts
```

# Files

--------------------------------------------------------------------------------
/xmlui/src/components/Tree/Tree-dynamic.spec.ts:
--------------------------------------------------------------------------------

```typescript
import { expect, test } from "../../testing/fixtures";
import {
  flatTreeData,
  hierarchyTreeData,
  dynamicTreeData,
  customDynamicTreeData,
  dynamicFlatData,
} from "./testData";

// =============================================================================
// IMPERATIVE API TESTS
// =============================================================================

test.describe("Imperative API", () => {
  test("exposes expandNode method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:expand" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="expandBtn" testId="expand-node-btn" label="Expand Node 1" 
            onClick="treeApi.expandNode(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const expandButton = await createButtonDriver("expand-node-btn");

    // Initially, tree should be collapsed
    await expect(tree.getByTestId("1:expand")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2:expand")).not.toBeVisible(); // Child hidden
    await expect(tree.getByTestId("3:expand")).not.toBeVisible(); // Child hidden

    // Click expand specific node button
    await expandButton.click();

    // Verify node 1's children are now visible but grandchildren are still hidden
    await expect(tree.getByTestId("1:expand")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2:expand")).toBeVisible(); // Child now visible
    await expect(tree.getByTestId("3:expand")).toBeVisible(); // Child now visible
    await expect(tree.getByTestId("4:expand")).not.toBeVisible(); // Grandchild still hidden (node 2 not expanded)
  });

  test("exposes collapseNode method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:expand" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="collapseBtn" testId="collapse-btn" label="Collapse Node 1" 
            onClick="treeApi.collapseNode(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const collapseButton = await createButtonDriver("collapse-btn");

    // Verify tree starts with all nodes visible (defaultExpanded="all")
    await expect(tree.getByTestId("1:expand")).toBeVisible();
    await expect(tree.getByTestId("2:expand")).toBeVisible();
    await expect(tree.getByTestId("3:expand")).toBeVisible();
    await expect(tree.getByTestId("4:expand")).toBeVisible();

    // Click collapse node button
    await collapseButton.click();

    // Verify node 1 children are now hidden
    await expect(tree.getByTestId("1:expand")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2:expand")).not.toBeVisible(); // Child hidden
    await expect(tree.getByTestId("3:expand")).not.toBeVisible(); // Child hidden
    await expect(tree.getByTestId("4:expand")).not.toBeVisible(); // Grandchild hidden
  });

  test("exposes expandAll method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:expandall" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="expandBtn" testId="expand-all-btn" label="Expand All" 
            onClick="treeApi.expandAll();" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const expandButton = await createButtonDriver("expand-all-btn");

    // Initially, tree should be collapsed (not expanded)
    await expect(tree.getByTestId("2:expandall")).not.toBeVisible();
    await expect(tree.getByTestId("4:expandall")).not.toBeVisible();

    // Click expandAll button
    await expandButton.click();

    // Verify all nodes are now visible (expanded)
    await expect(tree.getByTestId("1:expandall")).toBeVisible(); // Root
    await expect(tree.getByTestId("2:expandall")).toBeVisible(); // Child
    await expect(tree.getByTestId("3:expandall")).toBeVisible(); // Child
    await expect(tree.getByTestId("4:expandall")).toBeVisible(); // Grandchild
  });

  test("exposes collapseAll method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:collapseall" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="collapseBtn" testId="collapse-all-btn" label="Collapse All" 
            onClick="treeApi.collapseAll();" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const collapseButton = await createButtonDriver("collapse-all-btn");

    // Initially, tree should be fully expanded (defaultExpanded="all")
    await expect(tree.getByTestId("1:collapseall")).toBeVisible(); // Root
    await expect(tree.getByTestId("2:collapseall")).toBeVisible(); // Child
    await expect(tree.getByTestId("3:collapseall")).toBeVisible(); // Child
    await expect(tree.getByTestId("4:collapseall")).toBeVisible(); // Grandchild

    // Click collapseAll button
    await collapseButton.click();

    // Verify only root nodes are visible (all collapsed)
    await expect(tree.getByTestId("1:collapseall")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2:collapseall")).not.toBeVisible(); // Child hidden
    await expect(tree.getByTestId("3:collapseall")).not.toBeVisible(); // Child hidden
    await expect(tree.getByTestId("4:collapseall")).not.toBeVisible(); // Grandchild hidden
  });

  test("exposes scrollToItem method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    // Create a larger dataset to ensure scrolling is needed
    const largeTreeData = [
      { id: 1, name: "Root Item 1", parentId: null },
      { id: 2, name: "Child Item 1.1", parentId: 1 },
      { id: 3, name: "Child Item 1.2", parentId: 1 },
      { id: 4, name: "Grandchild Item 1.1.1", parentId: 2 },
      { id: 5, name: "Grandchild Item 1.1.2", parentId: 2 },
      { id: 6, name: "Root Item 2", parentId: null },
      { id: 7, name: "Child Item 2.1", parentId: 6 },
      { id: 8, name: "Child Item 2.2", parentId: 6 },
      { id: 9, name: "Child Item 2.3", parentId: 6 },
      { id: 10, name: "Root Item 3", parentId: null },
      { id: 11, name: "Child Item 3.1", parentId: 10 },
      { id: 12, name: "Child Item 3.2", parentId: 10 },
      { id: 13, name: "Root Item 4", parentId: null },
      { id: 14, name: "Child Item 4.1", parentId: 13 },
      { id: 15, name: "Child Item 4.2", parentId: 13 },
      { id: 16, name: "Root Item 5", parentId: null },
      { id: 17, name: "Child Item 5.1", parentId: 16 },
      { id: 18, name: "Child Item 5.2", parentId: 16 },
      { id: 19, name: "Target Item (Bottom)", parentId: 16 }, // This will be at the bottom
    ];

    const { testStateDriver } = await initTestBed(`
        <Fragment>
          <VStack height="150px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              parentIdField="parentId"
              defaultExpanded="all"
              data='{${JSON.stringify(largeTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:scroll" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="scrollBtn" testId="scroll-btn" label="Scroll to Bottom Item" onClick="
            treeApi.scrollToItem('19');
            testState = { actionPerformed: 'scrollToItem', itemId: '19' };
          " />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const scrollButton = await createButtonDriver("scroll-btn");

    // Verify tree is visible and first items are visible
    await expect(tree.getByTestId("1:scroll")).toBeVisible();
    await expect(tree.getByTestId("2:scroll")).toBeVisible();

    // Verify the target item at the bottom is initially NOT visible in the small viewport
    // (Due to the small height of 150px and many items, item 19 should be out of view)
    await expect(tree.getByTestId("19:scroll")).not.toBeVisible();

    // Click scroll to item button
    await scrollButton.click();

    // Verify test state confirms action was performed
    await expect.poll(testStateDriver.testState).toEqual({
      actionPerformed: "scrollToItem",
      itemId: "19",
    });

    // After scrolling, the target item should now be visible
    // Note: We can't easily test the exact scroll position in virtualized components,
    // but we can verify the API was called successfully
  });

  test("exposes getSelectedNode method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    const { testStateDriver } = await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              selectedValue="2"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:selected" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="getSelectedBtn" testId="get-selected-btn" label="Get Selected" onClick="
            const selectedNode = treeApi.getSelectedNode();
            testState = { 
              hasSelectedNode: selectedNode !== null,
              selectedNodeKey: selectedNode?.key,
              selectedNodeName: selectedNode?.displayName
            };
          " />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const getSelectedButton = await createButtonDriver("get-selected-btn");

    // Verify tree is visible with selection
    await expect(tree.getByTestId("2:selected")).toBeVisible();

    // Click get selected node button
    await getSelectedButton.click();

    // Verify getSelectedNode returns correct data
    await expect.poll(testStateDriver.testState).toEqual({
      hasSelectedNode: true,
      selectedNodeKey: 2,
      selectedNodeName: "Child Item 1.1",
    });
  });

  test("exposes appendNode method with flat data format #1", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="appendBtn" testId="append-btn" label="Append Child to Node 1" 
            onClick="treeApi.appendNode(1, { id: 5, name: 'New Child Item' });" />
          <Button id="expandBtn" testId="expand-btn" label="Expand Node 1" 
            onClick="treeApi.expandNode(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const appendButton = await createButtonDriver("append-btn");
    const expandButton = await createButtonDriver("expand-btn");

    // Check initial tree structure - only root nodes visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).not.toBeVisible(); // Child hidden (collapsed)
    await expect(tree.getByTestId("3")).not.toBeVisible(); // Child hidden (collapsed)
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Grandchild hidden (collapsed)

    // Append new node using API
    await appendButton.click();

    // Expand node 1 to see its children
    await expandButton.click();

    // Verify original children are visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Original child
    await expect(tree.getByTestId("3")).toBeVisible(); // Original child

    // Verify new node is now visible as a child of node 1
    await expect(tree.getByTestId("5")).toBeVisible(); // New child
  });

  test("exposes appendNode method with flat data format #2", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="appendBtn" testId="append-btn" label="Append new root node" 
            onClick="treeApi.appendNode(null, { id: 5, name: 'New Root Item' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const appendButton = await createButtonDriver("append-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Append new root node using API
    await appendButton.click();

    // Verify original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Original root
    await expect(tree.getByTestId("2")).toBeVisible(); // Original child
    await expect(tree.getByTestId("3")).toBeVisible(); // Original child
    await expect(tree.getByTestId("4")).toBeVisible(); // Original grandchild

    // Verify new root node is now visible
    await expect(tree.getByTestId("5")).toBeVisible(); // New root node
  });

  test("exposes appendNode method with hierarchy data format #1", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="appendBtn" testId="append-btn" label="Append Child to Node 1" 
            onClick="treeApi.appendNode(1, { id: 5, name: 'New Child Item' });" />
          <Button id="expandBtn" testId="expand-btn" label="Expand Node 1" 
            onClick="treeApi.expandNode(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const appendButton = await createButtonDriver("append-btn");
    const expandButton = await createButtonDriver("expand-btn");

    // Check initial tree structure - only root nodes visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).not.toBeVisible(); // Child hidden (collapsed)
    await expect(tree.getByTestId("3")).not.toBeVisible(); // Child hidden (collapsed)
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Grandchild hidden (collapsed)

    // Append new node using API
    await appendButton.click();

    // Expand node 1 to see its children
    await expandButton.click();

    // Verify original children are visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Original child
    await expect(tree.getByTestId("3")).toBeVisible(); // Original child

    // Verify new node is now visible as a child of node 1
    await expect(tree.getByTestId("5")).toBeVisible(); // New child
  });

  test("exposes appendNode method with hierarchy data format #2", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="appendBtn" testId="append-btn" label="Append new root node" 
            onClick="treeApi.appendNode(null, { id: 5, name: 'New Root Item' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const appendButton = await createButtonDriver("append-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Append new root node using API
    await appendButton.click();

    // Verify original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Original root
    await expect(tree.getByTestId("2")).toBeVisible(); // Original child
    await expect(tree.getByTestId("3")).toBeVisible(); // Original child
    await expect(tree.getByTestId("4")).toBeVisible(); // Original grandchild

    // Verify new root node is now visible
    await expect(tree.getByTestId("5")).toBeVisible(); // New root node
  });

  test("exposes removeNode method with flat data format #1 - remove leaf node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeBtn" testId="remove-btn" label="Remove Leaf Node 4" 
            onClick="treeApi.removeNode(4);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeButton = await createButtonDriver("remove-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove leaf node using API
    await removeButton.click();

    // Verify original nodes are still visible except removed node
    await expect(tree.getByTestId("1")).toBeVisible(); // Original root
    await expect(tree.getByTestId("2")).toBeVisible(); // Original child  
    await expect(tree.getByTestId("3")).toBeVisible(); // Original child

    // Verify removed node is no longer visible
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed leaf node
  });

  test("exposes removeNode method with flat data format #2 - remove parent with children", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeBtn" testId="remove-btn" label="Remove Node 2 and its children" 
            onClick="treeApi.removeNode(2);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeButton = await createButtonDriver("remove-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove parent node and its children using API
    await removeButton.click();

    // Verify remaining nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Original root
    await expect(tree.getByTestId("3")).toBeVisible(); // Original child (not removed)

    // Verify removed nodes are no longer visible
    await expect(tree.getByTestId("2")).not.toBeVisible(); // Removed parent
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed child (descendant of node 2)
  });

  test("exposes removeNode method with flat data format #3 - remove root node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeBtn" testId="remove-btn" label="Remove Root Node 1 and all descendants" 
            onClick="treeApi.removeNode(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeButton = await createButtonDriver("remove-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove root node and all descendants using API
    await removeButton.click();

    // Verify all nodes are removed since they were all descendants of node 1
    await expect(tree.getByTestId("1")).not.toBeVisible(); // Removed root
    await expect(tree.getByTestId("2")).not.toBeVisible(); // Removed descendant
    await expect(tree.getByTestId("3")).not.toBeVisible(); // Removed descendant  
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed descendant
  });

  test("exposes removeChildren method with flat data format #1 - remove children of parent node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeChildrenBtn" testId="remove-children-btn" label="Remove children of Node 1" 
            onClick="treeApi.removeChildren(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeChildrenButton = await createButtonDriver("remove-children-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove children of node 1 using API
    await removeChildrenButton.click();

    // Verify parent node 1 is still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Parent node kept

    // Verify all children and descendants are removed
    await expect(tree.getByTestId("2")).not.toBeVisible(); // Removed child
    await expect(tree.getByTestId("3")).not.toBeVisible(); // Removed child
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed descendant
  });

  test("exposes removeChildren method with flat data format #2 - remove children of node with one child", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeChildrenBtn" testId="remove-children-btn" label="Remove children of Node 2" 
            onClick="treeApi.removeChildren(2);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeChildrenButton = await createButtonDriver("remove-children-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove children of node 2 using API
    await removeChildrenButton.click();

    // Verify nodes 1, 2, and 3 are still visible (not affected)
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Parent node kept
    await expect(tree.getByTestId("3")).toBeVisible(); // Sibling not affected

    // Verify only node 4 (child of node 2) is removed
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed child
  });

  test("exposes removeChildren method with flat data format #3 - remove children of leaf node (no effect)", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeChildrenBtn" testId="remove-children-btn" label="Remove children of Leaf Node 4" 
            onClick="treeApi.removeChildren(4);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeChildrenButton = await createButtonDriver("remove-children-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove children of leaf node 4 using API (should have no effect)
    await removeChildrenButton.click();

    // Verify all nodes are still visible (no changes since node 4 has no children)
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Leaf node still visible
  });

  test("exposes removeNode method with hierarchy data format #1 - remove leaf node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeBtn" testId="remove-btn" label="Remove Leaf Node 4" 
            onClick="treeApi.removeNode(4);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeButton = await createButtonDriver("remove-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove leaf node using API
    await removeButton.click();

    // Verify original nodes are still visible except removed node
    await expect(tree.getByTestId("1")).toBeVisible(); // Original root
    await expect(tree.getByTestId("2")).toBeVisible(); // Original child  
    await expect(tree.getByTestId("3")).toBeVisible(); // Original child

    // Verify removed node is no longer visible
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed leaf node
  });

  test("exposes removeNode method with hierarchy data format #2 - remove parent with children", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeBtn" testId="remove-btn" label="Remove Node 3 and its children" 
            onClick="treeApi.removeNode(3);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeButton = await createButtonDriver("remove-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove parent node and its children using API
    await removeButton.click();

    // Verify remaining nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Original root
    await expect(tree.getByTestId("2")).toBeVisible(); // Original child (not removed)

    // Verify removed nodes are no longer visible
    await expect(tree.getByTestId("3")).not.toBeVisible(); // Removed parent
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed child (descendant of node 3)
  });

  test("exposes removeNode method with hierarchy data format #3 - remove root node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeBtn" testId="remove-btn" label="Remove Root Node 1 and all descendants" 
            onClick="treeApi.removeNode(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeButton = await createButtonDriver("remove-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove root node and all descendants using API
    await removeButton.click();

    // Verify all nodes are removed since they were all descendants of node 1
    await expect(tree.getByTestId("1")).not.toBeVisible(); // Removed root
    await expect(tree.getByTestId("2")).not.toBeVisible(); // Removed descendant
    await expect(tree.getByTestId("3")).not.toBeVisible(); // Removed descendant  
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed descendant
  });

  test("exposes removeChildren method with hierarchy data format #1 - remove children of parent node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeChildrenBtn" testId="remove-children-btn" label="Remove children of Node 1" 
            onClick="treeApi.removeChildren(1);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeChildrenButton = await createButtonDriver("remove-children-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove children of node 1 using API
    await removeChildrenButton.click();

    // Verify parent node 1 is still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Parent node kept

    // Verify all children and descendants are removed
    await expect(tree.getByTestId("2")).not.toBeVisible(); // Removed child
    await expect(tree.getByTestId("3")).not.toBeVisible(); // Removed child
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed descendant
  });

  test("exposes removeChildren method with hierarchy data format #2 - remove children of node with children", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeChildrenBtn" testId="remove-children-btn" label="Remove children of Node 3" 
            onClick="treeApi.removeChildren(3);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeChildrenButton = await createButtonDriver("remove-children-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove children of node 3 using API
    await removeChildrenButton.click();

    // Verify nodes 1, 2, and 3 are still visible (not affected)
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Sibling not affected
    await expect(tree.getByTestId("3")).toBeVisible(); // Parent node kept

    // Verify only node 4 (child of node 3) is removed
    await expect(tree.getByTestId("4")).not.toBeVisible(); // Removed child
  });

  test("exposes removeChildren method with hierarchy data format #3 - remove children of leaf node (no effect)", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="removeChildrenBtn" testId="remove-children-btn" label="Remove children of Leaf Node 2" 
            onClick="treeApi.removeChildren(2);" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const removeChildrenButton = await createButtonDriver("remove-children-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Remove children of leaf node 2 using API (should have no effect)
    await removeChildrenButton.click();

    // Verify all nodes are still visible (no changes since node 2 has no children in hierarchy data)
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Leaf node still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Sibling still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Child of sibling still visible
  });

  test("exposes insertNodeBefore method with flat data format #1 - insert before sibling node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert before Node 3" 
            onClick="treeApi.insertNodeBefore(3, { id: 5, name: 'New Node Before 3' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node before node 3 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as sibling of node 3)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeBefore method with flat data format #2 - insert before first child", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert before Node 2" 
            onClick="treeApi.insertNodeBefore(2, { id: 5, name: 'New First Child' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node before node 2 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as first child of node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeBefore method with flat data format #3 - insert before root node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert before Root Node 1" 
            onClick="treeApi.insertNodeBefore(1, { id: 5, name: 'New Root Before 1' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node before root node 1 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as new root before node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeBefore method with hierarchy data format #1 - insert before sibling node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert before Node 3" 
            onClick="treeApi.insertNodeBefore(3, { id: 5, name: 'New Node Before 3' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node before node 3 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as sibling of node 3)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeBefore method with hierarchy data format #2 - insert before first child", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert before Node 2" 
            onClick="treeApi.insertNodeBefore(2, { id: 5, name: 'New First Child' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node before node 2 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as first child of node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeBefore method with hierarchy data format #3 - insert before root node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert before Root Node 1" 
            onClick="treeApi.insertNodeBefore(1, { id: 5, name: 'New Root Before 1' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node before root node 1 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as new root before node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeAfter method with flat data format #1 - insert after sibling node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert after Node 2" 
            onClick="treeApi.insertNodeAfter(2, { id: 5, name: 'New Node After 2' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node after node 2 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as sibling after node 2)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeAfter method with flat data format #2 - insert after last child", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert after Node 3" 
            onClick="treeApi.insertNodeAfter(3, { id: 5, name: 'New Last Child' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node after node 3 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as last child of node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeAfter method with flat data format #3 - insert after root node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert after Root Node 1" 
            onClick="treeApi.insertNodeAfter(1, { id: 5, name: 'New Root After 1' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node after root node 1 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as new root after node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeAfter method with hierarchy data format #1 - insert after sibling node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert after Node 2" 
            onClick="treeApi.insertNodeAfter(2, { id: 5, name: 'New Node After 2' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node after node 2 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as sibling after node 2)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeAfter method with hierarchy data format #2 - insert after last child", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert after Node 3" 
            onClick="treeApi.insertNodeAfter(3, { id: 5, name: 'New Last Child' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node after node 3 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as last child of node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes insertNodeAfter method with hierarchy data format #3 - insert after root node", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="hierarchy"
              defaultExpanded="all"
              data='{${JSON.stringify(hierarchyTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="insertBtn" testId="insert-btn" label="Insert after Root Node 1" 
            onClick="treeApi.insertNodeAfter(1, { id: 5, name: 'New Root After 1' });" />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const insertButton = await createButtonDriver("insert-btn");

    // Check initial tree structure - all nodes visible due to defaultExpanded="all"
    await expect(tree.getByTestId("1")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("3")).toBeVisible(); // Child visible (expanded)
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild visible (expanded)

    // Insert new node after root node 1 using API
    await insertButton.click();

    // Verify all original nodes are still visible
    await expect(tree.getByTestId("1")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("2")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("3")).toBeVisible(); // Child still visible
    await expect(tree.getByTestId("4")).toBeVisible(); // Grandchild still visible

    // Verify new node is visible (inserted as new root after node 1)
    await expect(tree.getByTestId("5")).toBeVisible(); // New node inserted
  });

  test("exposes scrollIntoView method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    // Create a deeper hierarchy to test scrollIntoView with expansion
    const deepTreeData = [
      { id: 1, name: "Root Item 1", parentId: null },
      { id: 2, name: "Child Item 1.1", parentId: 1 },
      { id: 3, name: "Child Item 1.2", parentId: 1 },
      { id: 4, name: "Grandchild Item 1.1.1", parentId: 2 },
      { id: 5, name: "Great-grandchild Item 1.1.1.1", parentId: 4 },
      { id: 6, name: "Root Item 2", parentId: null },
      { id: 7, name: "Child Item 2.1", parentId: 6 },
      { id: 8, name: "Child Item 2.2", parentId: 6 },
      { id: 9, name: "Grandchild Item 2.1.1", parentId: 7 },
      { id: 10, name: "Root Item 3", parentId: null },
      { id: 11, name: "Child Item 3.1", parentId: 10 },
      { id: 12, name: "Deeply Nested Target", parentId: 11 }, // This requires expansion to be visible
    ];

    const { testStateDriver } = await initTestBed(`
        <Fragment>
          <VStack height="100px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              parentIdField="parentId"
              data='{${JSON.stringify(deepTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:scrollview" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="scrollViewBtn" testId="scroll-view-btn" label="Scroll Into View Deep Target" onClick="
            treeApi.scrollIntoView('12');
            testState = { actionPerformed: 'scrollIntoView', itemId: '12' };
          " />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const scrollViewButton = await createButtonDriver("scroll-view-btn");

    // Initially, tree should be collapsed so the deep target is not visible
    await expect(tree.getByTestId("1:scrollview")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("6:scrollview")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("10:scrollview")).toBeVisible(); // Root visible
    await expect(tree.getByTestId("11:scrollview")).not.toBeVisible(); // Child hidden (collapsed)
    await expect(tree.getByTestId("12:scrollview")).not.toBeVisible(); // Deep target hidden (needs expansion)

    // Click scroll into view button
    await scrollViewButton.click();

    // Verify test state confirms action was performed
    await expect.poll(testStateDriver.testState).toEqual({
      actionPerformed: "scrollIntoView",
      itemId: "12",
    });

    // Verify that the node and its parents are now expanded (target should be visible)
    await expect(tree.getByTestId("10:scrollview")).toBeVisible(); // Root still visible
    await expect(tree.getByTestId("11:scrollview")).toBeVisible(); // Parent expanded
    await expect(tree.getByTestId("12:scrollview")).toBeVisible(); // Target node now visible
  });

  test("exposes refreshData method", async ({
    initTestBed,
    createTreeDriver,
    createButtonDriver,
  }) => {
    const { testStateDriver } = await initTestBed(`
        <Fragment>
          <VStack height="400px">
            <Tree id="treeApi" testId="tree"
              dataFormat="flat"
              defaultExpanded="all"
              data='{${JSON.stringify(flatTreeData)}}'>
              <property name="itemTemplate">
                <HStack testId="{$item.id}:refresh" verticalAlignment="center">
                  <Text value="{$item.name}" />
                </HStack>
              </property>
            </Tree>
          </VStack>
          <Button id="refreshBtn" testId="refresh-btn" label="Refresh Data" onClick="
            treeApi.refreshData();
            testState = { actionPerformed: 'refreshData' };
          " />
        </Fragment>
      `);

    const tree = await createTreeDriver("tree");
    const refreshButton = await createButtonDriver("refresh-btn");

    // Verify tree is visible with original data
    await expect(tree.getByTestId("1:refresh")).toBeVisible();
    await expect(tree.getByTestId("2:refresh")).toBeVisible();

    // Click refresh data button
    await refreshButton.click();

    // Verify test state confirms action was performed
    // Note: refreshData forces re-processing but with same data, tree should remain the same
    await expect.poll(testStateDriver.testState).toEqual({
      actionPerformed: "refreshData",
    });

    // Tree should still be visible after refresh
    await expect(tree.getByTestId("1:refresh")).toBeVisible();
    await expect(tree.getByTestId("2:refresh")).toBeVisible();
  });

  // =============================================================================
  // COMPREHENSIVE API METHOD TESTS
  // =============================================================================

  test.describe("API Method Tests", () => {
    test("expandAll() - expands all nodes and makes all children visible", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                data='{${JSON.stringify(hierarchyTreeData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:expandall">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="expandall-btn" label="Expand All" onClick="
              treeApi.expandAll();
              testState = { actionPerformed: 'expandAll' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const expandAllButton = await createButtonDriver("expandall-btn");

      // BEFORE: Verify tree starts collapsed - only root visible
      await expect(tree.getByTestId("1:expandall")).toBeVisible(); // Root visible
      await expect(tree.getByTestId("2:expandall")).not.toBeVisible(); // Child hidden
      await expect(tree.getByTestId("3:expandall")).not.toBeVisible(); // Child hidden

      // Trigger expandAll API
      await expandAllButton.click();

      // Wait for async API call to complete
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandAll" });

      // AFTER: Verify all nodes are now visible
      await expect(tree.getByTestId("1:expandall")).toBeVisible(); // Root still visible
      await expect(tree.getByTestId("2:expandall")).toBeVisible(); // Child now visible
      await expect(tree.getByTestId("3:expandall")).toBeVisible(); // Child now visible

      // Note: For hierarchyTreeData, we only have 2 levels, so all should be visible after expandAll
    });

    test("collapseAll() - collapses all nodes and hides all children", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(hierarchyTreeData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:collapseall">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="collapseall-btn" label="Collapse All" onClick="
              treeApi.collapseAll();
              testState = { actionPerformed: 'collapseAll' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const collapseAllButton = await createButtonDriver("collapseall-btn");

      // BEFORE: Verify tree starts expanded - all nodes visible
      await expect(tree.getByTestId("1:collapseall")).toBeVisible(); // Root visible
      await expect(tree.getByTestId("2:collapseall")).toBeVisible(); // Child visible
      await expect(tree.getByTestId("3:collapseall")).toBeVisible(); // Child visible

      // Trigger collapseAll API
      await collapseAllButton.click();

      // Wait for async API call to complete
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "collapseAll" });

      // AFTER: Verify only root nodes are visible, children are hidden
      await expect(tree.getByTestId("1:collapseall")).toBeVisible(); // Root still visible
      await expect(tree.getByTestId("2:collapseall")).not.toBeVisible(); // Child now hidden
      await expect(tree.getByTestId("3:collapseall")).not.toBeVisible(); // Child now hidden
    });

    test("expandAll() - with deep hierarchy (4+ levels)", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Create a deeper hierarchy for thorough testing
      const deepHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                {
                  id: 3,
                  name: "Level 2 - Branch A.1",
                  children: [
                    { id: 4, name: "Level 3 - Leaf A.1.1", children: [] },
                    { id: 5, name: "Level 3 - Leaf A.1.2", children: [] },
                  ],
                },
                { id: 6, name: "Level 2 - Branch A.2", children: [] },
              ],
            },
            {
              id: 7,
              name: "Level 1 - Branch B",
              children: [{ id: 8, name: "Level 2 - Branch B.1", children: [] }],
            },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                data='{${JSON.stringify(deepHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:deep">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="expandall-deep-btn" label="Expand All Deep" onClick="
              treeApi.expandAll();
              testState = { actionPerformed: 'expandAllDeep' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const expandAllButton = await createButtonDriver("expandall-deep-btn");

      // BEFORE: Verify tree starts collapsed - only root visible
      await expect(tree.getByTestId("1:deep")).toBeVisible(); // Root (Level 0)
      await expect(tree.getByTestId("2:deep")).not.toBeVisible(); // Level 1 - Branch A (hidden)
      await expect(tree.getByTestId("3:deep")).not.toBeVisible(); // Level 2 - Branch A.1 (hidden)
      await expect(tree.getByTestId("4:deep")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (hidden)
      await expect(tree.getByTestId("7:deep")).not.toBeVisible(); // Level 1 - Branch B (hidden)
      await expect(tree.getByTestId("8:deep")).not.toBeVisible(); // Level 2 - Branch B.1 (hidden)

      // Trigger expandAll API
      await expandAllButton.click();

      // Wait for async API call to complete
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandAllDeep" });

      // AFTER: Verify ALL levels are now visible (4 levels deep)
      await expect(tree.getByTestId("1:deep")).toBeVisible(); // Root (Level 0) - still visible
      await expect(tree.getByTestId("2:deep")).toBeVisible(); // Level 1 - Branch A (now visible)
      await expect(tree.getByTestId("3:deep")).toBeVisible(); // Level 2 - Branch A.1 (now visible)
      await expect(tree.getByTestId("4:deep")).toBeVisible(); // Level 3 - Leaf A.1.1 (now visible)
      await expect(tree.getByTestId("5:deep")).toBeVisible(); // Level 3 - Leaf A.1.2 (now visible)
      await expect(tree.getByTestId("6:deep")).toBeVisible(); // Level 2 - Branch A.2 (now visible)
      await expect(tree.getByTestId("7:deep")).toBeVisible(); // Level 1 - Branch B (now visible)
      await expect(tree.getByTestId("8:deep")).toBeVisible(); // Level 2 - Branch B.1 (now visible)
    });

    test("collapseAll() - with deep hierarchy (4+ levels)", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Use the same deep hierarchy data
      const deepHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                {
                  id: 3,
                  name: "Level 2 - Branch A.1",
                  children: [
                    { id: 4, name: "Level 3 - Leaf A.1.1", children: [] },
                    { id: 5, name: "Level 3 - Leaf A.1.2", children: [] },
                  ],
                },
                { id: 6, name: "Level 2 - Branch A.2", children: [] },
              ],
            },
            {
              id: 7,
              name: "Level 1 - Branch B",
              children: [{ id: 8, name: "Level 2 - Branch B.1", children: [] }],
            },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(deepHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:deepcollapse">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="collapseall-deep-btn" label="Collapse All Deep" onClick="
              treeApi.collapseAll();
              testState = { actionPerformed: 'collapseAllDeep' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const collapseAllButton = await createButtonDriver("collapseall-deep-btn");

      // BEFORE: Verify tree starts fully expanded - all levels visible
      await expect(tree.getByTestId("1:deepcollapse")).toBeVisible(); // Root (Level 0)
      await expect(tree.getByTestId("2:deepcollapse")).toBeVisible(); // Level 1 - Branch A
      await expect(tree.getByTestId("3:deepcollapse")).toBeVisible(); // Level 2 - Branch A.1
      await expect(tree.getByTestId("4:deepcollapse")).toBeVisible(); // Level 3 - Leaf A.1.1
      await expect(tree.getByTestId("5:deepcollapse")).toBeVisible(); // Level 3 - Leaf A.1.2
      await expect(tree.getByTestId("7:deepcollapse")).toBeVisible(); // Level 1 - Branch B
      await expect(tree.getByTestId("8:deepcollapse")).toBeVisible(); // Level 2 - Branch B.1

      // Trigger collapseAll API
      await collapseAllButton.click();

      // Wait for async API call to complete
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "collapseAllDeep" });

      // AFTER: Verify only root level nodes are visible, all children hidden
      await expect(tree.getByTestId("1:deepcollapse")).toBeVisible(); // Root (Level 0) - still visible
      await expect(tree.getByTestId("2:deepcollapse")).not.toBeVisible(); // Level 1 - Branch A (now hidden)
      await expect(tree.getByTestId("3:deepcollapse")).not.toBeVisible(); // Level 2 - Branch A.1 (now hidden)
      await expect(tree.getByTestId("4:deepcollapse")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (now hidden)
      await expect(tree.getByTestId("5:deepcollapse")).not.toBeVisible(); // Level 3 - Leaf A.1.2 (now hidden)
      await expect(tree.getByTestId("6:deepcollapse")).not.toBeVisible(); // Level 2 - Branch A.2 (now hidden)
      await expect(tree.getByTestId("7:deepcollapse")).not.toBeVisible(); // Level 1 - Branch B (now hidden)
      await expect(tree.getByTestId("8:deepcollapse")).not.toBeVisible(); // Level 2 - Branch B.1 (now hidden)
    });

    test("expandToLevel(level) - expands nodes only to specified depth", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Use deep hierarchy to test expandToLevel properly
      const deepHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                {
                  id: 3,
                  name: "Level 2 - Branch A.1",
                  children: [
                    { id: 4, name: "Level 3 - Leaf A.1.1", children: [] },
                    { id: 5, name: "Level 3 - Leaf A.1.2", children: [] },
                  ],
                },
                { id: 6, name: "Level 2 - Branch A.2", children: [] },
              ],
            },
            {
              id: 7,
              name: "Level 1 - Branch B",
              children: [{ id: 8, name: "Level 2 - Branch B.1", children: [] }],
            },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                data='{${JSON.stringify(deepHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:level">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="expand-level0-btn" label="Expand to Level 0" onClick="
              treeApi.expandToLevel(0);
              testState = { actionPerformed: 'expandToLevel0' };
            " />
            <Button testId="expand-level1-btn" label="Expand to Level 1" onClick="
              treeApi.expandToLevel(1);
              testState = { actionPerformed: 'expandToLevel1' };
            " />
            <Button testId="expand-level2-btn" label="Expand to Level 2" onClick="
              treeApi.expandToLevel(2);
              testState = { actionPerformed: 'expandToLevel2' };
            " />
            <Button testId="expand-level3-btn" label="Expand to Level 3" onClick="
              treeApi.expandToLevel(3);
              testState = { actionPerformed: 'expandToLevel3' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const expandLevel0Button = await createButtonDriver("expand-level0-btn");
      const expandLevel1Button = await createButtonDriver("expand-level1-btn");
      const expandLevel2Button = await createButtonDriver("expand-level2-btn");
      const expandLevel3Button = await createButtonDriver("expand-level3-btn");

      // INITIAL STATE: Verify tree starts collapsed - only root visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root)
      await expect(tree.getByTestId("2:level")).not.toBeVisible(); // Level 1 (hidden)
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 (hidden)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 (hidden)

      // TEST 1: expandToLevel(0) - should show only root level (no expansion)
      await expandLevel0Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandToLevel0" });

      // AFTER expandToLevel(0): Only Level 0 visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - visible
      await expect(tree.getByTestId("2:level")).not.toBeVisible(); // Level 1 - Branch A (hidden)
      await expect(tree.getByTestId("7:level")).not.toBeVisible(); // Level 1 - Branch B (hidden)
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - Branch A.1 (hidden)
      await expect(tree.getByTestId("8:level")).not.toBeVisible(); // Level 2 - Branch B.1 (hidden)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (hidden)

      // TEST 2: expandToLevel(1) - should show Level 0 and Level 1 only
      await expandLevel1Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandToLevel1" });

      // AFTER expandToLevel(1): Level 0 and 1 visible, Level 2+ hidden
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A (now visible)
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B (now visible)
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - Branch A.1 (still hidden)
      await expect(tree.getByTestId("6:level")).not.toBeVisible(); // Level 2 - Branch A.2 (still hidden)
      await expect(tree.getByTestId("8:level")).not.toBeVisible(); // Level 2 - Branch B.1 (still hidden)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (still hidden)

      // TEST 3: expandToLevel(2) - should show Level 0, 1, and 2
      await expandLevel2Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandToLevel2" });

      // AFTER expandToLevel(2): Level 0, 1, and 2 visible, Level 3+ hidden
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A - visible
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B - visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - Branch A.1 (now visible)
      await expect(tree.getByTestId("6:level")).toBeVisible(); // Level 2 - Branch A.2 (now visible)
      await expect(tree.getByTestId("8:level")).toBeVisible(); // Level 2 - Branch B.1 (now visible)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (still hidden)
      await expect(tree.getByTestId("5:level")).not.toBeVisible(); // Level 3 - Leaf A.1.2 (still hidden)

      // TEST 4: expandToLevel(3) - should show all levels (0, 1, 2, and 3)
      await expandLevel3Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandToLevel3" });

      // AFTER expandToLevel(3): All levels visible (complete expansion for this tree)
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A - visible
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B - visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - Branch A.1 - visible
      await expect(tree.getByTestId("6:level")).toBeVisible(); // Level 2 - Branch A.2 - visible
      await expect(tree.getByTestId("8:level")).toBeVisible(); // Level 2 - Branch B.1 - visible
      await expect(tree.getByTestId("4:level")).toBeVisible(); // Level 3 - Leaf A.1.1 (now visible)
      await expect(tree.getByTestId("5:level")).toBeVisible(); // Level 3 - Leaf A.1.2 (now visible)
    });

    test("expandNode(nodeId) - expands specific node and shows its children", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Use deep hierarchy to test individual node expansion
      const deepHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                {
                  id: 3,
                  name: "Level 2 - Branch A.1",
                  children: [
                    { id: 4, name: "Level 3 - Leaf A.1.1", children: [] },
                    { id: 5, name: "Level 3 - Leaf A.1.2", children: [] },
                  ],
                },
                { id: 6, name: "Level 2 - Branch A.2", children: [] },
              ],
            },
            {
              id: 7,
              name: "Level 1 - Branch B",
              children: [{ id: 8, name: "Level 2 - Branch B.1", children: [] }],
            },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                data='{${JSON.stringify(deepHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:level">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="expand-root-btn" label="Expand Root" onClick="
              treeApi.expandNode(1);
              testState = { actionPerformed: 'expandRoot' };
            " />
            <Button testId="expand-node2-btn" label="Expand Node 2" onClick="
              treeApi.expandNode(2);
              testState = { actionPerformed: 'expandNode2' };
            " />
            <Button testId="expand-node3-btn" label="Expand Node 3" onClick="
              treeApi.expandNode(3);
              testState = { actionPerformed: 'expandNode3' };
            " />
            <Button testId="expand-node7-btn" label="Expand Node 7" onClick="
              treeApi.expandNode(7);
              testState = { actionPerformed: 'expandNode7' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const expandRootButton = await createButtonDriver("expand-root-btn");
      const expandNode2Button = await createButtonDriver("expand-node2-btn");
      const expandNode3Button = await createButtonDriver("expand-node3-btn");
      const expandNode7Button = await createButtonDriver("expand-node7-btn");

      // INITIAL STATE: Verify tree starts collapsed - only root visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - visible
      await expect(tree.getByTestId("2:level")).not.toBeVisible(); // Level 1 - Branch A (hidden)
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - Branch A.1 (hidden)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (hidden)
      await expect(tree.getByTestId("6:level")).not.toBeVisible(); // Level 2 - Branch A.2 (hidden)
      await expect(tree.getByTestId("7:level")).not.toBeVisible(); // Level 1 - Branch B (hidden)
      await expect(tree.getByTestId("8:level")).not.toBeVisible(); // Level 2 - Branch B.1 (hidden)

      // FIRST: Expand root to make Level 1 nodes visible
      await expandRootButton.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandRoot" });

      // AFTER expanding root: Level 1 nodes become visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A (now visible)
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B (now visible)
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - Branch A.1 (still hidden)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (still hidden)
      await expect(tree.getByTestId("6:level")).not.toBeVisible(); // Level 2 - Branch A.2 (still hidden)
      await expect(tree.getByTestId("8:level")).not.toBeVisible(); // Level 2 - Branch B.1 (still hidden)

      // TEST 1: expandNode(2) - should expand "Level 1 - Branch A" and show its children
      await expandNode2Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandNode2" });

      // AFTER expandNode(2): Node 2's children become visible, others stay hidden
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A (still visible)
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - Branch A.1 (now visible - child of node 2)
      await expect(tree.getByTestId("6:level")).toBeVisible(); // Level 2 - Branch A.2 (now visible - child of node 2)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (still hidden - child of node 3)
      await expect(tree.getByTestId("5:level")).not.toBeVisible(); // Level 3 - Leaf A.1.2 (still hidden - child of node 3)
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B (still visible from root expansion)
      await expect(tree.getByTestId("8:level")).not.toBeVisible(); // Level 2 - Branch B.1 (still hidden - child of node 7)

      // TEST 2: expandNode(3) - should expand "Level 2 - Branch A.1" and show its children
      await expandNode3Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandNode3" });

      // AFTER expandNode(3): Node 3's children become visible, previous expansions remain
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A - still visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - Branch A.1 - still visible
      await expect(tree.getByTestId("6:level")).toBeVisible(); // Level 2 - Branch A.2 - still visible
      await expect(tree.getByTestId("4:level")).toBeVisible(); // Level 3 - Leaf A.1.1 (now visible - child of node 3)
      await expect(tree.getByTestId("5:level")).toBeVisible(); // Level 3 - Leaf A.1.2 (now visible - child of node 3)
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B (still visible from root expansion)
      await expect(tree.getByTestId("8:level")).not.toBeVisible(); // Level 2 - Branch B.1 (still hidden - child of node 7)

      // TEST 3: expandNode(7) - should expand "Level 1 - Branch B" and show its children
      await expandNode7Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandNode7" });

      // AFTER expandNode(7): Node 7's children become visible, all previous expansions remain
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A - still visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - Branch A.1 - still visible
      await expect(tree.getByTestId("6:level")).toBeVisible(); // Level 2 - Branch A.2 - still visible
      await expect(tree.getByTestId("4:level")).toBeVisible(); // Level 3 - Leaf A.1.1 - still visible
      await expect(tree.getByTestId("5:level")).toBeVisible(); // Level 3 - Leaf A.1.2 - still visible
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B - still visible
      await expect(tree.getByTestId("8:level")).toBeVisible(); // Level 2 - Branch B.1 (now visible - child of node 7)
    });

    test("expandNode(nodeId) - negative tests for invalid or inaccessible nodes", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Use simple hierarchy to test negative cases clearly
      const simpleHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [{ id: 3, name: "Level 2 - Leaf A.1", children: [] }],
            },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                data='{${JSON.stringify(simpleHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:level">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="expand-nonexistent-btn" label="Expand Non-existent Node" onClick="
              treeApi.expandNode(999);
              testState = { actionPerformed: 'expandNonExistent' };
            " />
            <Button testId="expand-leaf-node3-btn" label="Expand Leaf Node 3" onClick="
              treeApi.expandNode(3);
              testState = { actionPerformed: 'expandLeafNode3' };
            " />
            <Button testId="expand-root-btn" label="Expand Root" onClick="
              treeApi.expandNode(1);
              testState = { actionPerformed: 'expandRoot' };
            " />
            <Button testId="expand-node2-btn" label="Expand Node 2" onClick="
              treeApi.expandNode(2);
              testState = { actionPerformed: 'expandNode2' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const expandNonExistentButton = await createButtonDriver("expand-nonexistent-btn");
      const expandLeafNode3Button = await createButtonDriver("expand-leaf-node3-btn");
      const expandRootButton = await createButtonDriver("expand-root-btn");
      const expandNode2Button = await createButtonDriver("expand-node2-btn");

      // INITIAL STATE: Only root visible, all children hidden
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - visible
      await expect(tree.getByTestId("2:level")).not.toBeVisible(); // Level 1 - hidden
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - hidden

      // NEGATIVE TEST 1: Try to expand non-existent node (ID 999)
      await expandNonExistentButton.click();
      await expect
        .poll(testStateDriver.testState)
        .toEqual({ actionPerformed: "expandNonExistent" });

      // AFTER expandNode(999): Should have no effect, tree state unchanged
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - still visible
      await expect(tree.getByTestId("2:level")).not.toBeVisible(); // Level 1 - still hidden
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - still hidden

      // NEGATIVE TEST 2: Try to expand leaf node 3 (which has no children) while it's hidden
      await expandLeafNode3Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandLeafNode3" });

      // AFTER expandNode(3) on hidden leaf: Should have no effect since node is not visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - still visible
      await expect(tree.getByTestId("2:level")).not.toBeVisible(); // Level 1 - still hidden
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - still hidden

      // Now expand the tree properly to make nodes visible
      await expandRootButton.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandRoot" });

      await expandNode2Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandNode2" });

      // After proper expansion: All nodes should be visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - visible

      // NEGATIVE TEST 3: Try to expand leaf node 3 again (now that it's visible but still has no children)
      await expandLeafNode3Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "expandLeafNode3" });

      // AFTER expandNode(3) on visible leaf: Should have no visible effect since leaf nodes can't expand
      // Tree state should remain the same - all nodes still visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - still visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - still visible
    });

    test("collapseNode(nodeId) - collapses specific node and hides its children", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Use deep hierarchy to test individual node collapse
      const deepHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                {
                  id: 3,
                  name: "Level 2 - Branch A.1",
                  children: [
                    { id: 4, name: "Level 3 - Leaf A.1.1", children: [] },
                    { id: 5, name: "Level 3 - Leaf A.1.2", children: [] },
                  ],
                },
                { id: 6, name: "Level 2 - Branch A.2", children: [] },
              ],
            },
            {
              id: 7,
              name: "Level 1 - Branch B",
              children: [{ id: 8, name: "Level 2 - Branch B.1", children: [] }],
            },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(deepHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:level">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="collapse-node3-btn" label="Collapse Node 3" onClick="
              treeApi.collapseNode(3);
              testState = { actionPerformed: 'collapseNode3' };
            " />
            <Button testId="collapse-node2-btn" label="Collapse Node 2" onClick="
              treeApi.collapseNode(2);
              testState = { actionPerformed: 'collapseNode2' };
            " />
            <Button testId="collapse-root-btn" label="Collapse Root" onClick="
              treeApi.collapseNode(1);
              testState = { actionPerformed: 'collapseRoot' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const collapseNode3Button = await createButtonDriver("collapse-node3-btn");
      const collapseNode2Button = await createButtonDriver("collapse-node2-btn");
      const collapseRootButton = await createButtonDriver("collapse-root-btn");

      // INITIAL STATE: Tree starts fully expanded - all nodes visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A - visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - Branch A.1 - visible
      await expect(tree.getByTestId("4:level")).toBeVisible(); // Level 3 - Leaf A.1.1 - visible
      await expect(tree.getByTestId("5:level")).toBeVisible(); // Level 3 - Leaf A.1.2 - visible
      await expect(tree.getByTestId("6:level")).toBeVisible(); // Level 2 - Branch A.2 - visible
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B - visible
      await expect(tree.getByTestId("8:level")).toBeVisible(); // Level 2 - Branch B.1 - visible

      // TEST 1: collapseNode(3) - should collapse "Level 2 - Branch A.1" and hide its children
      await collapseNode3Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "collapseNode3" });

      // AFTER collapseNode(3): Node 3's children become hidden, others remain visible
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A - still visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - Branch A.1 - still visible (but collapsed)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (now hidden - child of collapsed node 3)
      await expect(tree.getByTestId("5:level")).not.toBeVisible(); // Level 3 - Leaf A.1.2 (now hidden - child of collapsed node 3)
      await expect(tree.getByTestId("6:level")).toBeVisible(); // Level 2 - Branch A.2 - still visible (not child of node 3)
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B - still visible
      await expect(tree.getByTestId("8:level")).toBeVisible(); // Level 2 - Branch B.1 - still visible

      // TEST 2: collapseNode(2) - should collapse "Level 1 - Branch A" and hide all its descendants
      await collapseNode2Button.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "collapseNode2" });

      // AFTER collapseNode(2): Node 2's entire subtree becomes hidden
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - Branch A - still visible (but collapsed)
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - Branch A.1 (now hidden - child of collapsed node 2)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (still hidden)
      await expect(tree.getByTestId("5:level")).not.toBeVisible(); // Level 3 - Leaf A.1.2 (still hidden)
      await expect(tree.getByTestId("6:level")).not.toBeVisible(); // Level 2 - Branch A.2 (now hidden - child of collapsed node 2)
      await expect(tree.getByTestId("7:level")).toBeVisible(); // Level 1 - Branch B - still visible (not descendant of node 2)
      await expect(tree.getByTestId("8:level")).toBeVisible(); // Level 2 - Branch B.1 - still visible

      // TEST 3: collapseNode(1) - should collapse root and hide all children
      await collapseRootButton.click();
      await expect.poll(testStateDriver.testState).toEqual({ actionPerformed: "collapseRoot" });

      // AFTER collapseNode(1): All children of root become hidden
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Level 0 (Root) - still visible (but collapsed)
      await expect(tree.getByTestId("2:level")).not.toBeVisible(); // Level 1 - Branch A (now hidden - child of collapsed root)
      await expect(tree.getByTestId("3:level")).not.toBeVisible(); // Level 2 - Branch A.1 (still hidden)
      await expect(tree.getByTestId("4:level")).not.toBeVisible(); // Level 3 - Leaf A.1.1 (still hidden)
      await expect(tree.getByTestId("5:level")).not.toBeVisible(); // Level 3 - Leaf A.1.2 (still hidden)
      await expect(tree.getByTestId("6:level")).not.toBeVisible(); // Level 2 - Branch A.2 (still hidden)
      await expect(tree.getByTestId("7:level")).not.toBeVisible(); // Level 1 - Branch B (now hidden - child of collapsed root)
      await expect(tree.getByTestId("8:level")).not.toBeVisible(); // Level 2 - Branch B.1 (now hidden)
    });

    test("collapseNode(nodeId) - negative tests for invalid or leaf nodes", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Use simple hierarchy for negative tests
      const simpleHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [{ id: 3, name: "Level 2 - Leaf A.1", children: [] }],
            },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(simpleHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:level">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="collapse-nonexistent-btn" label="Collapse Non-existent Node" onClick="
              treeApi.collapseNode(999);
              testState = { actionPerformed: 'collapseNonExistent' };
            " />
            <Button testId="collapse-leaf-node3-btn" label="Collapse Leaf Node 3" onClick="
              treeApi.collapseNode(3);
              testState = { actionPerformed: 'collapseLeafNode3' };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const collapseNonExistentButton = await createButtonDriver("collapse-nonexistent-btn");
      const collapseLeafNode3Button = await createButtonDriver("collapse-leaf-node3-btn");

      // INITIAL STATE: Tree starts fully expanded
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - visible

      // NEGATIVE TEST 1: Try to collapse non-existent node (ID 999)
      await collapseNonExistentButton.click();
      await expect
        .poll(testStateDriver.testState)
        .toEqual({ actionPerformed: "collapseNonExistent" });

      // AFTER collapseNode(999): Should have no effect, tree state unchanged
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - still visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - still visible

      // NEGATIVE TEST 2: Try to collapse leaf node 3 (which has no children to hide)
      await collapseLeafNode3Button.click();
      await expect
        .poll(testStateDriver.testState)
        .toEqual({ actionPerformed: "collapseLeafNode3" });

      // AFTER collapseNode(3) on leaf: Should have no visible effect since leaf nodes have no children
      // Tree state should remain the same
      await expect(tree.getByTestId("1:level")).toBeVisible(); // Root - still visible
      await expect(tree.getByTestId("2:level")).toBeVisible(); // Level 1 - still visible
      await expect(tree.getByTestId("3:level")).toBeVisible(); // Level 2 - still visible
    });

    test("selectNode(nodeId) - API method executes without error", async ({
      page,
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Use hierarchy for testing selectNode API
      const selectableHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [{ id: 3, name: "Level 2 - Leaf A.1", children: [] }],
            },
          ],
        },
      ];

      await initTestBed(`
          <Fragment>
            <VStack height="400px" var.selectedNodeId="{null}">
              <Text testId="selectedId">{selectedNodeId}</Text>
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                onSelectionDidChange="node => {selectedNodeId = node.newNode.id}"
                data='{${JSON.stringify(selectableHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:selection">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="select-node2-btn" label="Select Node 2" onClick="treeApi.selectNode(2);" />
            <Button testId="select-nonexistent-btn" label="Select Non-existent Node" onClick="
              treeApi.selectNode('999');
              const selectedNode = treeApi.getSelectedNode();
              testState = { actionPerformed: 'selectNonExistent', selectedNodeData: selectedNode };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const selectNode2Button = await createButtonDriver("select-node2-btn");
      const selectNonExistentButton = await createButtonDriver("select-nonexistent-btn");
      const selectedIdText = page.getByTestId("selectedId");

      // INITIAL STATE: No selection
      await expect(selectedIdText).toHaveText("");

      // TEST 1: selectNode('2') API call completes without error
      await selectNode2Button.click();
      await expect(selectedIdText).toHaveText("2");

      // TEST 2: selectNode('999') with invalid ID completes without error
      await selectNonExistentButton.click();
      await expect(selectedIdText).toHaveText("");
    });

    test("getSelectedNode() - returns correct selected node data", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Simple hierarchy for testing getSelectedNode API
      const simpleHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            { id: 2, name: "Level 1 - Branch A", children: [] },
            { id: 3, name: "Level 1 - Branch B", children: [] },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                selectedValue="{2}"
                data='{${JSON.stringify(simpleHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:selection">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="get-selected-btn" label="Get Selected Node" onClick="
              const selectedNode = treeApi.getSelectedNode();
              testState = { 
                actionPerformed: 'getSelected', 
                selectedNodeData: selectedNode,
                selectedKey: selectedNode?.key,
                selectedName: selectedNode?.name
              };
            " />
            <Button testId="get-selected-null-btn" label="Get Selected When None" onClick="
              const selectedNode = treeApi.getSelectedNode();
              testState = { 
                actionPerformed: 'getSelectedNull', 
                selectedNodeData: selectedNode 
              };
            " />
          </Fragment>
        `);

      const getSelectedButton = await createButtonDriver("get-selected-btn");

      // TEST 1: getSelectedNode() returns correct node when selectedValue is set
      await getSelectedButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getSelected");

      // Verify getSelectedNode returns the correct node data
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.selectedKey;
        })
        .toBe(2);

      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.selectedName;
        })
        .toBe("Level 1 - Branch A");

      // Verify the returned node is not null
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.selectedNodeData;
        })
        .not.toBe(null);

      // TEST 2: Test with no selection (update tree to have no selectedValue)
      const { testStateDriver: testStateDriver2 } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(simpleHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:selection">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="get-selected-null-btn" label="Get Selected When None" onClick="
              const selectedNode = treeApi.getSelectedNode();
              testState = { 
                actionPerformed: 'getSelectedNull', 
                selectedNodeData: selectedNode 
              };
            " />
          </Fragment>
        `);

      const getSelectedNullButton = await createButtonDriver("get-selected-null-btn");

      await getSelectedNullButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver2.testState();
          return state.actionPerformed;
        })
        .toBe("getSelectedNull");

      // Verify getSelectedNode returns null when no selection
      await expect
        .poll(async () => {
          const state = await testStateDriver2.testState();
          return state.selectedNodeData;
        })
        .toBe(null);
    });

    test("clearSelection() - API method executes without error", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Simple hierarchy for testing clearSelection API
      const simpleHierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [{ id: 2, name: "Level 1 - Branch A", children: [] }],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(simpleHierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:clear">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="clear-selection-btn" label="Clear Selection" onClick="
              try {
                treeApi.clearSelection();
                testState = { 
                  actionPerformed: 'clearSelection', 
                  success: true,
                  error: null
                };
              } catch (error) {
                testState = { 
                  actionPerformed: 'clearSelection', 
                  success: false,
                  error: error.message
                };
              }
            " />
            <Button testId="get-selected-btn" label="Get Selected Node" onClick="
              try {
                const selectedNode = treeApi.getSelectedNode();
                testState = { 
                  actionPerformed: 'getSelected', 
                  success: true,
                  selectedNodeData: selectedNode,
                  error: null
                };
              } catch (error) {
                testState = { 
                  actionPerformed: 'getSelected', 
                  success: false,
                  error: error.message
                };
              }
            " />
          </Fragment>
        `);

      const clearSelectionButton = await createButtonDriver("clear-selection-btn");
      const getSelectedButton = await createButtonDriver("get-selected-btn");

      // TEST: clearSelection() API call completes without error
      await clearSelectionButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("clearSelection");

      let currentState = await testStateDriver.testState();
      expect(currentState.success).toBe(true);
      expect(currentState.error).toBe(null);

      // TEST: getSelectedNode() API call completes without error
      await getSelectedButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getSelected");

      currentState = await testStateDriver.testState();
      expect(currentState.success).toBe(true);
      expect(currentState.error).toBe(null);
      // When no selection is managed, getSelectedNode() returns null
      expect(currentState.selectedNodeData).toBe(null);
    });

    test("getNodeById() - returns correct node data or null for invalid keys", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Rich hierarchy data for testing getNodeById API
      const hierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                { id: 4, name: "Level 2 - Leaf A1", children: [] },
                { id: 5, name: "Level 2 - Leaf A2", children: [] },
              ],
            },
            { id: 3, name: "Level 1 - Branch B", children: [] },
          ],
        },
        {
          id: 6,
          name: "Root Level 1",
          children: [{ id: 7, name: "Level 1 - Branch C", children: [] }],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(hierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:getById">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="get-node1-btn" label="Get Node 1" onClick="
              const node = treeApi.getNodeById(1);
              testState = { 
                actionPerformed: 'getNode1', 
                nodeData: node,
                nodeKey: node?.key,
                nodeName: node?.name
              };
            " />
            <Button testId="get-node4-btn" label="Get Node 4" onClick="
              const node = treeApi.getNodeById(4);
              testState = { 
                actionPerformed: 'getNode4', 
                nodeData: node,
                nodeKey: node?.key,
                nodeName: node?.name
              };
            " />
            <Button testId="get-node7-btn" label="Get Node 7" onClick="
              const node = treeApi.getNodeById(7);
              testState = { 
                actionPerformed: 'getNode7', 
                nodeData: node,
                nodeKey: node?.key,
                nodeName: node?.name
              };
            " />
            <Button testId="get-invalid-btn" label="Get Invalid Node" onClick="
              const node = treeApi.getNodeById(999);
              testState = { 
                actionPerformed: 'getInvalid', 
                nodeData: node,
                nodeExists: node !== null
              };
            " />
          </Fragment>
        `);

      const getNode1Button = await createButtonDriver("get-node1-btn");
      const getNode4Button = await createButtonDriver("get-node4-btn");
      const getNode7Button = await createButtonDriver("get-node7-btn");
      const getInvalidButton = await createButtonDriver("get-invalid-btn");

      // TEST: getNodeById(1) should return root node data
      await getNode1Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getNode1");

      let currentState = await testStateDriver.testState();
      expect(currentState.nodeKey).toBe(1);
      expect(currentState.nodeName).toBe("Root Level 0");
      expect(currentState.nodeData).not.toBe(null);

      // TEST: getNodeById(4) should return deep nested node data
      await getNode4Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getNode4");

      currentState = await testStateDriver.testState();
      expect(currentState.nodeKey).toBe(4);
      expect(currentState.nodeName).toBe("Level 2 - Leaf A1");
      expect(currentState.nodeData).not.toBe(null);

      // TEST: getNodeById(7) should return node from second root
      await getNode7Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getNode7");

      currentState = await testStateDriver.testState();
      expect(currentState.nodeKey).toBe(7);
      expect(currentState.nodeName).toBe("Level 1 - Branch C");
      expect(currentState.nodeData).not.toBe(null);

      // TEST: getNodeById(999) should return null for non-existent node
      await getInvalidButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getInvalid");

      currentState = await testStateDriver.testState();
      expect(currentState.nodeExists).toBe(false);
      expect(currentState.nodeData).toBe(null);
    });

    test("getNodeById() - can retrieve nodes within collapsed parents", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Hierarchy with nested structure to test collapsed nodes
      const hierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                { id: 4, name: "Level 2 - Hidden Leaf A1", children: [] },
                { id: 5, name: "Level 2 - Hidden Leaf A2", children: [] },
              ],
            },
            { id: 3, name: "Level 1 - Branch B", children: [] },
          ],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="all"
                data='{${JSON.stringify(hierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:hidden">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="collapse-node2-btn" label="Collapse Node 2" onClick="
              treeApi.collapseNode(2);
              testState = { actionPerformed: 'collapseNode2' };
            " />
            <Button testId="get-visible-node1-btn" label="Get Visible Node 1" onClick="
              const node = treeApi.getNodeById(1);
              testState = { 
                actionPerformed: 'getVisibleNode1', 
                nodeData: node,
                nodeKey: node?.key,
                nodeName: node?.name,
                nodeExists: node !== null
              };
            " />
            <Button testId="get-hidden-node4-btn" label="Get Hidden Node 4" onClick="
              const node = treeApi.getNodeById(4);
              testState = { 
                actionPerformed: 'getHiddenNode4', 
                nodeData: node,
                nodeKey: node?.key,
                nodeName: node?.name,
                nodeExists: node !== null
              };
            " />
            <Button testId="get-hidden-node5-btn" label="Get Hidden Node 5" onClick="
              const node = treeApi.getNodeById(5);
              testState = { 
                actionPerformed: 'getHiddenNode5', 
                nodeData: node,
                nodeKey: node?.key,
                nodeName: node?.name,
                nodeExists: node !== null
              };
            " />
            <Button testId="expand-node2-btn" label="Expand Node 2" onClick="
              treeApi.expandNode(2);
              testState = { actionPerformed: 'expandNode2' };
            " />
            <Button testId="get-now-visible-node4-btn" label="Get Now Visible Node 4" onClick="
              const node = treeApi.getNodeById(4);
              testState = { 
                actionPerformed: 'getNowVisibleNode4', 
                nodeData: node,
                nodeKey: node?.key,
                nodeName: node?.name,
                nodeExists: node !== null
              };
            " />
          </Fragment>
        `);

      const tree = await createTreeDriver("tree");
      const collapseNode2Button = await createButtonDriver("collapse-node2-btn");
      const getVisibleNode1Button = await createButtonDriver("get-visible-node1-btn");
      const getHiddenNode4Button = await createButtonDriver("get-hidden-node4-btn");
      const getHiddenNode5Button = await createButtonDriver("get-hidden-node5-btn");
      const expandNode2Button = await createButtonDriver("expand-node2-btn");
      const getNowVisibleNode4Button = await createButtonDriver("get-now-visible-node4-btn");

      // INITIAL STATE: defaultExpanded="all", so all nodes are visible
      // First, verify all nodes are visible initially
      const node1Wrapper = tree.getNodeWrapperByTestId("1:hidden");
      const node2Wrapper = tree.getNodeWrapperByTestId("2:hidden");
      const node4Wrapper = tree.getNodeWrapperByTestId("4:hidden");
      const node5Wrapper = tree.getNodeWrapperByTestId("5:hidden");

      await expect(node1Wrapper).toBeVisible();
      await expect(node2Wrapper).toBeVisible();
      await expect(node4Wrapper).toBeVisible();
      await expect(node5Wrapper).toBeVisible();

      // Now collapse node 2 to hide its children
      await collapseNode2Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("collapseNode2");

      // After collapse, node 2 is still visible but its children (4, 5) are hidden
      await expect(node1Wrapper).toBeVisible();
      await expect(node2Wrapper).toBeVisible();
      await expect(node4Wrapper).not.toBeVisible();
      await expect(node5Wrapper).not.toBeVisible();

      // TEST: getNodeById(1) should work for visible node
      await getVisibleNode1Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getVisibleNode1");

      let currentState = await testStateDriver.testState();
      expect(currentState.nodeKey).toBe(1);
      expect(currentState.nodeName).toBe("Root Level 0");
      expect(currentState.nodeExists).toBe(true);

      // TEST: getNodeById(4) should work even though node 4 is hidden (collapsed parent)
      // This tests whether the API can access data model nodes regardless of DOM visibility
      await getHiddenNode4Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getHiddenNode4");

      currentState = await testStateDriver.testState();
      expect(currentState.nodeKey).toBe(4);
      expect(currentState.nodeName).toBe("Level 2 - Hidden Leaf A1");
      expect(currentState.nodeExists).toBe(true);

      // TEST: getNodeById(5) should also work for another hidden node
      await getHiddenNode5Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getHiddenNode5");

      currentState = await testStateDriver.testState();
      expect(currentState.nodeKey).toBe(5);
      expect(currentState.nodeName).toBe("Level 2 - Hidden Leaf A2");
      expect(currentState.nodeExists).toBe(true);

      // Now expand the parent node to make children visible again
      await expandNode2Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("expandNode2");

      // Verify nodes are now visible in DOM again
      await expect(node4Wrapper).toBeVisible();
      await expect(node5Wrapper).toBeVisible();

      // TEST: getNodeById(4) should still work now that it's visible again
      await getNowVisibleNode4Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getNowVisibleNode4");

      currentState = await testStateDriver.testState();
      expect(currentState.nodeKey).toBe(4);
      expect(currentState.nodeName).toBe("Level 2 - Hidden Leaf A1");
      expect(currentState.nodeExists).toBe(true);
    });

    test("getExpandedNodes() - returns array of expanded node keys", async ({
      initTestBed,
      createTreeDriver,
      createButtonDriver,
    }) => {
      // Hierarchy data for testing expanded nodes tracking
      const hierarchyData = [
        {
          id: 1,
          name: "Root Level 0",
          children: [
            {
              id: 2,
              name: "Level 1 - Branch A",
              children: [
                { id: 4, name: "Level 2 - Leaf A1", children: [] },
                { id: 5, name: "Level 2 - Leaf A2", children: [] },
              ],
            },
            { id: 3, name: "Level 1 - Branch B", children: [] },
          ],
        },
        {
          id: 6,
          name: "Root Level 1",
          children: [{ id: 7, name: "Level 1 - Branch C", children: [] }],
        },
      ];

      const { testStateDriver } = await initTestBed(`
          <Fragment>
            <VStack height="400px">
              <Tree id="treeApi" testId="tree"
                dataFormat="hierarchy"
                defaultExpanded="none"
                data='{${JSON.stringify(hierarchyData)}}'>
                <property name="itemTemplate">
                  <HStack testId="{$item.id}:expand">
                    <Text value="{$item.name}" />
                  </HStack>
                </property>
              </Tree>
            </VStack>
            <Button testId="get-expanded-initial-btn" label="Get Expanded Initial" onClick="
              const expanded = treeApi.getExpandedNodes();
              testState = { 
                actionPerformed: 'getExpandedInitial', 
                expandedNodes: expanded,
                expandedCount: expanded.length
              };
            " />
            <Button testId="expand-node1-btn" label="Expand Node 1" onClick="
              treeApi.expandNode(1);
              testState = { actionPerformed: 'expandNode1' };
            " />
            <Button testId="get-expanded-after1-btn" label="Get Expanded After 1" onClick="
              const expanded = treeApi.getExpandedNodes();
              testState = { 
                actionPerformed: 'getExpandedAfter1', 
                expandedNodes: expanded,
                expandedCount: expanded.length
              };
            " />
            <Button testId="expand-node2-btn" label="Expand Node 2" onClick="
              treeApi.expandNode(2);
              testState = { actionPerformed: 'expandNode2' };
            " />
            <Button testId="get-expanded-after2-btn" label="Get Expanded After 2" onClick="
              const expanded = treeApi.getExpandedNodes();
              testState = { 
                actionPerformed: 'getExpandedAfter2', 
                expandedNodes: expanded,
                expandedCount: expanded.length
              };
            " />
            <Button testId="expand-all-btn" label="Expand All" onClick="
              treeApi.expandAll();
              testState = { actionPerformed: 'expandAll' };
            " />
            <Button testId="get-expanded-all-btn" label="Get Expanded All" onClick="
              const expanded = treeApi.getExpandedNodes();
              testState = { 
                actionPerformed: 'getExpandedAll', 
                expandedNodes: expanded,
                expandedCount: expanded.length
              };
            " />
            <Button testId="collapse-node2-btn" label="Collapse Node 2" onClick="
              treeApi.collapseNode(2);
              testState = { actionPerformed: 'collapseNode2' };
            " />
            <Button testId="get-expanded-after-collapse-btn" label="Get Expanded After Collapse" onClick="
              const expanded = treeApi.getExpandedNodes();
              testState = { 
                actionPerformed: 'getExpandedAfterCollapse', 
                expandedNodes: expanded,
                expandedCount: expanded.length
              };
            " />
          </Fragment>
        `);

      const getExpandedInitialButton = await createButtonDriver("get-expanded-initial-btn");
      const expandNode1Button = await createButtonDriver("expand-node1-btn");
      const getExpandedAfter1Button = await createButtonDriver("get-expanded-after1-btn");
      const expandNode2Button = await createButtonDriver("expand-node2-btn");
      const getExpandedAfter2Button = await createButtonDriver("get-expanded-after2-btn");
      const expandAllButton = await createButtonDriver("expand-all-btn");
      const getExpandedAllButton = await createButtonDriver("get-expanded-all-btn");
      const collapseNode2Button = await createButtonDriver("collapse-node2-btn");
      const getExpandedAfterCollapseButton = await createButtonDriver(
        "get-expanded-after-collapse-btn",
      );

      // INITIAL STATE: defaultExpanded="none", so no nodes should be expanded
      await getExpandedInitialButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getExpandedInitial");

      let currentState = await testStateDriver.testState();
      expect(currentState.expandedCount).toBe(0);
      expect(currentState.expandedNodes).toEqual([]);

      // EXPAND NODE 1: Should add node 1 to expanded list
      await expandNode1Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("expandNode1");

      await getExpandedAfter1Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getExpandedAfter1");

      currentState = await testStateDriver.testState();
      expect(currentState.expandedCount).toBe(1);
      expect(currentState.expandedNodes).toEqual([1]);

      // EXPAND NODE 2: Should add node 2 to expanded list (alongside node 1)
      await expandNode2Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("expandNode2");

      await getExpandedAfter2Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getExpandedAfter2");

      currentState = await testStateDriver.testState();
      expect(currentState.expandedCount).toBe(2);
      expect(currentState.expandedNodes).toEqual(expect.arrayContaining([1, 2]));

      // EXPAND ALL: Should expand all nodes with children
      await expandAllButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("expandAll");

      await getExpandedAllButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getExpandedAll");

      currentState = await testStateDriver.testState();
      // After expandAll, ALL nodes are added to the expanded list
      // This includes leaf nodes, which is the current implementation behavior
      expect(currentState.expandedCount).toBe(7);
      expect(currentState.expandedNodes).toEqual(expect.arrayContaining([1, 2, 3, 4, 5, 6, 7]));

      // COLLAPSE NODE 2: Should remove node 2 from expanded list
      await collapseNode2Button.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("collapseNode2");

      await getExpandedAfterCollapseButton.click();
      await expect
        .poll(async () => {
          const state = await testStateDriver.testState();
          return state.actionPerformed;
        })
        .toBe("getExpandedAfterCollapse");

      currentState = await testStateDriver.testState();
      expect(currentState.expandedCount).toBe(4);
      // When node 2 is collapsed, its descendants (4, 5) are also removed from expanded list
      expect(currentState.expandedNodes).toEqual(expect.arrayContaining([1, 3, 6, 7]));
      expect(currentState.expandedNodes).not.toEqual(expect.arrayContaining([2, 4, 5]));
    });
  });
});

// =============================================================================
// DYNAMIC FIELD SUPPORT TESTS
// =============================================================================
test.describe("Dynamic Field Support", () => {
  test("should display expand/collapse icons for dynamic nodes even without children", async ({
    page,
    initTestBed,
    createTreeDriver,
  }) => {
    await initTestBed(`
      <VStack height="400px">
        <Tree testId="tree"
          dataFormat="hierarchy"
          data='{${JSON.stringify(dynamicTreeData)}}'
          defaultExpanded="none">
          <property name="itemTemplate">
            <HStack testId="{$item.id}:{$item.depth}">
              <Text value="{$item.name}" />
            </HStack>
          </property>
        </Tree>
      </VStack>
    `);

    const tree = await createTreeDriver("tree");
    await expect(tree.component).toBeVisible();

    // --- We see an extra icon because Node 3 is dynamic ---
    await expect(tree.getIconsByName("chevronright")).toHaveCount(2);

    // Verify tree items are rendered (only root level nodes should be visible initially)
    await expect(page.getByTestId("1:0")).toBeVisible();
    await expect(page.getByTestId("3:0")).toBeVisible();
    await expect(page.getByTestId("4:0")).toBeVisible();

    // Node 2 should not be visible initially as parent is collapsed
    await expect(page.getByTestId("2:1")).not.toBeVisible();
  });

  test("should use custom dynamicField name", async ({ page, initTestBed, createTreeDriver }) => {
    await initTestBed(`
      <VStack height="400px">
        <Tree testId="tree"
          dataFormat="hierarchy"
          dynamicField="canLoadMore"
          data='{${JSON.stringify(customDynamicTreeData)}}'
          defaultExpanded="none">
          <property name="itemTemplate">
            <HStack testId="{$item.id}:{$item.depth}">
              <Text value="{$item.name}" />
            </HStack>
          </property>
        </Tree>
      </VStack>
    `);

    const tree = await createTreeDriver("tree");
    await expect(tree.component).toBeVisible();

    // --- We see an extra icon because Node 3 is dynamic ---
    await expect(tree.getIconsByName("chevronright")).toHaveCount(2);

    // Verify tree items are rendered (only root level nodes should be visible initially)
    await expect(page.getByTestId("1:0")).toBeVisible();
    await expect(page.getByTestId("3:0")).toBeVisible();
    await expect(page.getByTestId("4:0")).toBeVisible();

    // Node 2 should not be visible initially as parent is collapsed
    await expect(page.getByTestId("2:1")).not.toBeVisible();
  });

  test("should work with flat data format and dynamic field", async ({
    page,
    initTestBed,
    createTreeDriver,
  }) => {
    await initTestBed(`
      <VStack height="400px">
        <Tree testId="tree"
          dataFormat="flat"
          data='{${JSON.stringify(dynamicFlatData)}}'
          defaultExpanded="none">
          <property name="itemTemplate">
            <HStack testId="{$item.id}:{$item.depth}">
              <Text value="{$item.name}" />
            </HStack>
          </property>
        </Tree>
      </VStack>
    `);

    const tree = await createTreeDriver("tree");
    await expect(tree.component).toBeVisible();

    // --- We see an extra icon because Node 3 is dynamic ---
    await expect(tree.getIconsByName("chevronright")).toHaveCount(2);

    // Verify tree items are rendered (only root level nodes should be visible initially)
    await expect(page.getByTestId("1:0")).toBeVisible();
    await expect(page.getByTestId("3:0")).toBeVisible();
    await expect(page.getByTestId("4:0")).toBeVisible();

    // Node 2 should not be visible initially as parent is collapsed
    await expect(page.getByTestId("2:1")).not.toBeVisible();
  });
});

```
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