refactor(@angular/build): avoid secondary import wrapper in Vitest unless coverage is enabled#32360
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alan-agius4 merged 2 commits intoangular:mainfrom Jan 27, 2026
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…less coverage is enabled This commit optimizes the Vitest test runner by removing the secondary import wrapper for test entry points when code coverage is not enabled. The wrapper is only necessary to support coverage exclusion of the test files themselves. By capturing the resolved Vitest configuration within the `configureVitest` hook, the plugin can now determine if coverage is enabled and conditionally apply the wrapper. This simplifies the module graph for standard test runs.
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…bypassed When code coverage is disabled, the Vitest builder bypasses the secondary import wrapper and serves the compiled output directly as the test file. This caused sourcemaps to be incorrect because the `sources` field in the map (relative to the build root) was being resolved relative to the test file's location. This commit adjusts the `sources` in the sourcemap to be relative to the test file's directory, ensuring correct source mapping in debuggers.
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This commit optimizes the Vitest test runner by removing the secondary import wrapper for test entry points when code coverage is not enabled. The wrapper is only necessary to support coverage exclusion of the test files themselves.
By capturing the resolved Vitest configuration within the
configureVitesthook, the plugin can now determine if coverage is enabled and conditionally apply the wrapper. This simplifies the module graph for standard test runs.