feat: implement V8 coverage provider#1117
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…t runtime files This commit improves the coverage-v8 implementation to properly support Rsbuild's in-memory execution environment. - Updates the `CoverageProvider.collect` API to accept `assetFiles` and `sourceMaps` from the worker, allowing v8ToIstanbul to read in-memory sourcemaps directly without writeToDisk. - Fixes 0% coverage bug where temp files couldn't be parsed from disk. - Filters out generated temporary files (`.rstest-temp`) and webpack runtime code (`webpack/runtime`) from the final CoverageMap report.
…inal source paths to fix file ignoring Refactors the v8 coverage provider to apply include/exclude rules on the source-mapped files rather than transpiled V8 file URLs. This fixes the issue where test and fixture files were incorrectly showing up with 100% coverage in reports. Also updates corresponding e2e test assertions and snapshots to match the correct V8 output metrics.
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Resolve conflicts around V8 coverage provider, changed coverage filtering, CLI options, and lockfile dependencies.
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# Conflicts: # packages/core/tests/cli/commands.test.ts
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# Conflicts: # website/docs/en/guide/migration/vitest.mdx # website/docs/zh/guide/migration/vitest.mdx
Summary
This PR introduces a brand-new
@rstest/coverage-v8package which provides precise, high-performance V8-based coverage collection for Rstest as an alternative to the existing Istanbul coverage provider.Key Changes
CoverageProviderinterface to support asynchronousinitandcollectmethodsnode:inspectorsessions don't leak during test crashesnode:inspectorto profile code execution andv8-to-istanbulto transform node-native profiles into Istanbul-compatible metricscoverage.includeandcoverage.excludeconfigurations usingpicomatchdirectly on V8 profilesRelated
Follows the previously discussed design plan and implementation plan.