test_runner: mark ignored lcov branches covered#63371
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Sean-Kenneth-Doherty wants to merge 1 commit into
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test_runner: mark ignored lcov branches covered#63371Sean-Kenneth-Doherty wants to merge 1 commit into
Sean-Kenneth-Doherty wants to merge 1 commit into
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Fixes #61586.
When a
node:coverage ignore nextdirective covers an unexecuted branch body, the line entry is omitted from LCOV but the branch entry is still emitted as uncovered. This makes LCOV branch totals fail even though the branch points only at ignored source.This change detects zero-count branch ranges whose only uncovered source is ignored or non-executable scaffolding, then reports that branch as covered. The LCOV output keeps
BRFstable while movingBRHand the matchingBRDAentry to covered, matching the ignore behavior expected by the issue and by c8-style output.A focused regression fixture covers a truthy-only branch with an ignored falsy return and asserts the LCOV report has no zero-count
BRDA, reportsBRF:3/BRH:3, and still omits the ignored return fromDA.Checks run locally:
node --check lib/internal/test_runner/coverage.jsnode --test --test-name-pattern "lcov reporter excludes ignored branch ranges" test/parallel/test-runner-coverage.js(fails against the installed system Node before this patch, showing the staleBRDA:...,0/BRH:2behavior)tools/eslint/node_modules/eslint/bin/eslint.js --cache --max-warnings=0 --report-unused-disable-directives --no-warn-ignored lib/internal/test_runner/coverage.js test/parallel/test-runner-coverage.js test/fixtures/test-runner/coverage-ignored-branch.js test/fixtures/test-runner/coverage-ignored-branch.test.jsgit diff --cached --checkI attempted a local built-binary verification as well, but this environment could not complete a Node build before hitting temporary-space/toolchain constraints; CI should exercise the patched binary path.