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test_runner: print coverage and diagnostics with dot reporter #61891

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test_runner: print coverage and diagnostics with dot reporter #61891

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b7cd703
test_runner: print coverage and
madkate42 Feb 19, 2026
3be8bad
adds a snapshot test
madkate42 Feb 19, 2026
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adds a snapshot test
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@madkate42
madkate42 committed Feb 19, 2026
commit 3be8badb91e53189118601cb429c52dda99bfab6
13 changes: 13 additions & 0 deletions test/fixtures/test-runner/output/dot_reporter_coverage.mjs
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// Flags: --experimental-test-coverage --test-coverage-lines=99
// here we can't import common module as the coverage will be different based on the system
// Unused imports are here in order to populate the coverage report
// eslint-disable-next-line no-unused-vars
import * as a from '../coverage-snap/b.js';
// eslint-disable-next-line no-unused-vars
import * as b from '../coverage-snap/a.js';

import { test } from 'node:test';

process.stdout.columns = 80;

test('passing test for dot coverage report');
19 changes: 19 additions & 0 deletions test/fixtures/test-runner/output/dot_reporter_coverage.snapshot
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.

ℹ Error: *% line coverage does not meet threshold of 99%.
ℹ start of coverage report
ℹ ------------------------------------------------------------------------------
ℹ file | line % | branch % | funcs % | uncovered lines
ℹ ------------------------------------------------------------------------------
ℹ test | | | |
ℹ fixtures | | | |
ℹ test-runner | | | |
ℹ coverage-snap | | | |
ℹ a.js | 55.77 | 100.00 | 0.00 | 5-7 9-11 13-15 17-…
ℹ b.js | 45.45 | 100.00 | 0.00 | 5-7 9-11
ℹ output | | | |
ℹ dot_reporter_cove….mjs | 100.00 | 100.00 | 100.00 |
ℹ ------------------------------------------------------------------------------
ℹ all files | 61.84 | 100.00 | 0.00 |
ℹ ------------------------------------------------------------------------------
ℹ end of coverage report
16 changes: 16 additions & 0 deletions test/test-runner/test-output-dot-reporter-coverage.mjs
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// Test that the output of test-runner/output/dot_reporter_coverage.mjs matches
// test-runner/output/dot_reporter_coverage.snapshot
import * as common from '../common/index.mjs';
import * as fixtures from '../common/fixtures.mjs';
import { spawnAndAssert, defaultTransform, ensureCwdIsProjectRoot } from '../common/assertSnapshot.js';

if (!process.features.inspector) {
common.skip('inspector support required');
}

ensureCwdIsProjectRoot();
await spawnAndAssert(
fixtures.path('test-runner/output/dot_reporter_coverage.mjs'),
defaultTransform,
{ flags: ['--test-reporter=dot', '--test-coverage-exclude=!test/**'] },
);
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