test(sidebar-documentpreview): cover the visible-label loading branch and drop the stale single-viewer control from the seeded-history golden

packages/client/ui-sidebar-documentpreview/tests/loading-indicator.client.spec.tsx

@@ -0,0 +1,23 @@
+// @vitest-environment jsdom
+/** The shared loading status: visible label by default, icon-only on request. */
+import { afterEach, describe, expect, it } from 'vitest'
+import { cleanup, render } from '@testing-library/react'
+import { LoadingIndicator } from '../src/client/LoadingIndicator.tsx'
+
+afterEach(cleanup)
+
+describe('LoadingIndicator', () => {
+  it('shows the label beside the spinner by default', () => {
+    const { getByRole } = render(<LoadingIndicator label="Reading…" />)
+    const status = getByRole('status')
+    expect(status.textContent).toBe('Reading…')
+    expect(status.getAttribute('aria-label')).toBeNull()
+  })
+
+  it('moves the label to the accessible name when icon-only', () => {
+    const { getByRole } = render(<LoadingIndicator label="Reading…" iconOnly />)
+    const status = getByRole('status')
+    expect(status.textContent).toBe('')
+    expect(status.getAttribute('aria-label')).toBe('Reading…')
+  })
+})

snapshots/web/seeded-history/file-preview.expected.md

@@ -1,5 +1,4 @@
 - text: {{cwd}}/a.txt
-- button "Open with": Plain text
 - button "Line wrap" [pressed]:
   - img
 - button "Read the file again":