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test_runner: match coverage globs against cwd-relative paths #62362

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test_runner: match coverage globs against cwd-relative paths #62362

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test_runner: match coverage globs against cwd-relative paths 
Avoid applying coverage include/exclude glob checks to absolute paths so projects under directories named like test/ are not accidentally excluded. Add a regression test for cwd paths containing test.

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@ace-tk
ace-tk committed Mar 21, 2026
commit 571e3e3fcd3fe939a565ab238106a6ebf51ac981
14 changes: 6 additions & 8 deletions lib/internal/test_runner/coverage.js
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Original file line number Diff line number Diff line change
Expand Up @@ -480,20 +480,18 @@ class TestCoverage {
// This check filters out files that match the exclude globs.
if (excludeGlobs?.length > 0) {
for (let i = 0; i < excludeGlobs.length; ++i) {
if (
matchGlobPattern(relativePath, excludeGlobs[i]) ||
matchGlobPattern(absolutePath, excludeGlobs[i])
) return true;
if (matchGlobPattern(relativePath, excludeGlobs[i])) {
return true;
}
}
}

// This check filters out files that do not match the include globs.
if (includeGlobs?.length > 0) {
for (let i = 0; i < includeGlobs.length; ++i) {
if (
matchGlobPattern(relativePath, includeGlobs[i]) ||
matchGlobPattern(absolutePath, includeGlobs[i])
) return false;
if (matchGlobPattern(relativePath, includeGlobs[i])) {
return false;
}
}
return true;
}
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31 changes: 31 additions & 0 deletions test/parallel/test-runner-coverage-default-exclusion.mjs
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Expand Up @@ -3,6 +3,7 @@ import { before, describe, it } from 'node:test';
import assert from 'node:assert';
import { spawnSync } from 'node:child_process';
import { cp } from 'node:fs/promises';
import { join } from 'node:path';
import tmpdir from '../common/tmpdir.js';
import fixtures from '../common/fixtures.js';
const skipIfNoInspector = {
Expand All @@ -14,6 +15,7 @@ tmpdir.refresh();
async function setupFixtures() {
const fixtureDir = fixtures.path('test-runner', 'coverage-default-exclusion');
await cp(fixtureDir, tmpdir.path, { recursive: true });
await cp(fixtureDir, join(tmpdir.path, 'test'), { recursive: true });
}

describe('test runner coverage default exclusion', skipIfNoInspector, () => {
Expand Down Expand Up @@ -114,4 +116,33 @@ describe('test runner coverage default exclusion', skipIfNoInspector, () => {
assert(result.stdout.toString().includes(report));
assert.strictEqual(result.status, 0);
});

it('should use cwd-relative matching for default exclusion globs', async () => {
const report = [
'# start of coverage report',
'# --------------------------------------------------------------',
'# file | line % | branch % | funcs % | uncovered lines',
'# --------------------------------------------------------------',
'# logic-file.js | 66.67 | 100.00 | 50.00 | 5-7',
'# --------------------------------------------------------------',
'# all files | 66.67 | 100.00 | 50.00 | ',
'# --------------------------------------------------------------',
'# end of coverage report',
].join('\n');

const args = [
'--no-experimental-strip-types',
'--test',
'--experimental-test-coverage',
'--test-reporter=tap',
];
const result = spawnSync(process.execPath, args, {
env: { ...process.env, NODE_TEST_TMPDIR: tmpdir.path },
cwd: join(tmpdir.path, 'test'),
});

assert.strictEqual(result.stderr.toString(), '');
assert(result.stdout.toString().includes(report));
assert.strictEqual(result.status, 0);
});
});