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Fix test timeout in plugin-editor from Monaco Editor initialization#312

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hotlong merged 2 commits intomainfrom
copilot/fix-html-rendering-issue
Feb 1, 2026
Merged

Fix test timeout in plugin-editor from Monaco Editor initialization#312
hotlong merged 2 commits intomainfrom
copilot/fix-html-rendering-issue

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Copilot AI commented Feb 1, 2026

The @object-ui/plugin-editor test suite was timing out during the beforeAll hook that imports Monaco Editor. The default Vitest hook timeout (10s) is insufficient for Monaco's initialization in the test environment.

Changes

  • Increased beforeAll hook timeout to 30s in packages/plugin-editor/src/index.test.ts
beforeAll(async () => {
  await import('./index');
}, 30000); // 30 second timeout for Monaco Editor initialization

Monaco Editor is lazy-loaded in the component via React.lazy() but still loads synchronously when imported during test setup. The timeout accommodates this heavy dependency initialization.

Original prompt

引用: https://github.com/objectstack-ai/objectui/actions/runs/21554423155/job/62108306729#step:8:1


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Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>
Copilot AI changed the title [WIP] Fix HTML rendering issue in UI Fix test timeout in plugin-editor from Monaco Editor initialization Feb 1, 2026
Copilot AI requested a review from hotlong February 1, 2026 02:52
@hotlong hotlong marked this pull request as ready for review February 1, 2026 02:53
Copilot AI review requested due to automatic review settings February 1, 2026 02:53
@hotlong hotlong merged commit 70e8dfb into main Feb 1, 2026
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Pull request overview

This PR attempts to fix test timeout issues in the @object-ui/plugin-editor package by increasing the beforeAll hook timeout from the default 10 seconds to 30 seconds. The change is motivated by the assumption that Monaco Editor initialization is causing the timeout.

Changes:

  • Added a 30-second timeout to the beforeAll hook in plugin-editor tests
  • Added a comment explaining that Monaco Editor is a heavy library that takes time to load

beforeAll(async () => {
await import('./index');
});
}, 30000); // 30 second timeout for Monaco Editor initialization
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No other plugin packages in the codebase use extended timeouts for their beforeAll hooks, even though packages like @object-ui/plugin-aggrid and @object-ui/plugin-charts also import heavy third-party libraries (AG Grid, Recharts).

This inconsistency suggests either:

  1. The timeout isn't actually necessary (the lazy loading is working as designed)
  2. Other plugins may have similar issues that haven't been encountered yet

Consider verifying whether this timeout is actually solving the problem or if there's a different root cause that should be addressed consistently across all plugins.

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Comment on lines +14 to +17
// Note: Monaco Editor is a heavy library that takes time to load
beforeAll(async () => {
await import('./index');
});
}, 30000); // 30 second timeout for Monaco Editor initialization
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The comment and timeout may be based on an incorrect assumption. Monaco Editor is lazy-loaded via React.lazy(() => import('./MonacoImpl')) in index.tsx (line 18), which means the Monaco Editor module should only be imported when the component actually renders, not during the test's beforeAll hook.

The await import('./index') only imports the registration code and the wrapper component, not Monaco Editor itself. If tests are timing out, the root cause may be elsewhere (e.g., bundler configuration, module resolution issues, or unrelated CI environment issues).

Consider investigating the actual cause of the timeout before committing to a 30-second timeout. A few alternatives:

  1. Check if Monaco Editor is actually being imported during beforeAll (add logging or profiling)
  2. Review the Vitest configuration for any module transformation issues
  3. If Monaco really does load at import time despite React.lazy, consider mocking the Monaco Editor module in tests since the tests only verify ComponentRegistry registration, not editor functionality

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Comment on lines 15 to +17
beforeAll(async () => {
await import('./index');
});
}, 30000); // 30 second timeout for Monaco Editor initialization
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The test suite only verifies ComponentRegistry registration and metadata, but doesn't test any actual Monaco Editor functionality. If Monaco Editor is indeed causing timeout issues (which seems unlikely given the lazy loading architecture), consider mocking the @monaco-editor/react module for these unit tests.

This would:

  1. Eliminate any potential Monaco-related timeouts
  2. Make tests run faster
  3. Keep tests focused on what they're actually testing (registration logic)
  4. Prevent CI flakiness

Example approach: Use vi.mock('@monaco-editor/react') to provide a stub implementation for tests that don't need the actual editor.

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