feat(@angular/build): add advanced coverage options to unit-test builder #31369
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The `unit-test` builder is enhanced with several new coverage features to provide a more robust and configurable testing experience. This change refactors the existing `codeCoverage` options to a more concise `coverage` prefix for a cleaner API. Since the builder is experimental, this is the ideal time for such an improvement. The following new options have been added: - `coverageAll`: Includes all files matching `coverageInclude` in the report, ensuring untested files are visible. - `coverageInclude`: Specifies which files to include in the report, providing more accurate metrics. - `coverageThresholds`: Allows setting minimum coverage percentages for statements, branches, functions, and lines. If thresholds are not met, the builder will exit with an error, enabling automated quality gates in CI. - `coverageWatermarks`: Allows customization of coverage watermarks for the HTML reporter. The Karma runner has been updated to support the `thresholds` and `watermarks` options, providing a better experience for users on that runner. Warnings remain for options that are still unsupported.
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jkrems
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Oct 2, 2025
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The
unit-testbuilder is enhanced with several new coverage features to provide a more robust and configurable testing experience.This change refactors the existing
codeCoverageoptions to a more concisecoverageprefix for a cleaner API. Since the builder is experimental, this is the ideal time for such an improvement.The following new options have been added:
coverageAll: Includes all files matchingcoverageIncludein the report, ensuring untested files are visible.coverageInclude: Specifies which files to include in the report, providing more accurate metrics.coverageThresholds: Allows setting minimum coverage percentages for statements, branches, functions, and lines. If thresholds are not met, the builder will exit with an error, enabling automated quality gates in CI.coverageWatermarks: Allows customization of coverage watermarks for the HTML reporter.The Karma runner has been updated to support the
thresholdsandwatermarksoptions, providing a better experience for users on that runner. Warnings remain for options that are still unsupported.