test(@angular/build): add E2E test for Vitest browser mode with coverage#33058
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clydin wants to merge 2 commits intoangular:mainfrom
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test(@angular/build): add E2E test for Vitest browser mode with coverage#33058clydin wants to merge 2 commits intoangular:mainfrom
clydin wants to merge 2 commits intoangular:mainfrom
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This test ensures that stack traces map correctly to source files and that coverage reports are generated when running Vitest in browser mode with coverage enabled. This provides validation for the current implementation and will help verify future refactors removing the source-map-support dependency.
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This pull request removes the browser source map support plugin and its associated logic from the Vitest builder configuration, while also updating the sourcemap adjustment logic. Additionally, a new E2E test has been added to verify browser coverage. I have no feedback to provide on the code changes themselves, but please address the versioning issue identified in the E2E test file.
alan-agius4
approved these changes
Apr 28, 2026
This change removes the injection of `source-map-support` in Vitest browser tests and enables sourcemap rebasing for coverage runs as well. This allows Vitest's native remapper to handle stack traces and coverage correctly without needing the external polyfill in the browser. The E2E tests have been verified to pass with these changes. The unused `createSourcemapSupportPlugin` function has also been removed.
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This test ensures that stack traces map correctly to source files and that coverage reports are generated when running Vitest in browser mode with coverage enabled. This provides validation for the current implementation and will help verify future refactors removing the source-map-support dependency.