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test_runner: add support for coverage thresholds
Co-Authored-By: Marco Ippolito <[email protected]> PR-URL: #54429 Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Paolo Insogna <[email protected]> Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Marco Ippolito <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| 'use strict'; | ||
| const common = require('../common'); | ||
| const assert = require('node:assert'); | ||
| const { spawnSync } = require('node:child_process'); | ||
| const { readdirSync } = require('node:fs'); | ||
| const { test } = require('node:test'); | ||
| const fixtures = require('../common/fixtures'); | ||
| const tmpdir = require('../common/tmpdir'); | ||
|
|
||
| common.skipIfInspectorDisabled(); | ||
| tmpdir.refresh(); | ||
|
|
||
| function findCoverageFileForPid(pid) { | ||
| const pattern = `^coverage\\-${pid}\\-(\\d{13})\\-(\\d+)\\.json$`; | ||
| const regex = new RegExp(pattern); | ||
|
|
||
| return readdirSync(tmpdir.path).find((file) => { | ||
| return regex.test(file); | ||
| }); | ||
| } | ||
|
|
||
| function getTapCoverageFixtureReport() { | ||
| /* eslint-disable @stylistic/js/max-len */ | ||
| const report = [ | ||
| '# start of coverage report', | ||
| '# -------------------------------------------------------------------------------------------------------------------', | ||
| '# file | line % | branch % | funcs % | uncovered lines', | ||
| '# -------------------------------------------------------------------------------------------------------------------', | ||
| '# test/fixtures/test-runner/coverage.js | 78.65 | 38.46 | 60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72', | ||
| '# test/fixtures/test-runner/invalid-tap.js | 100.00 | 100.00 | 100.00 | ', | ||
| '# test/fixtures/v8-coverage/throw.js | 71.43 | 50.00 | 100.00 | 5-6', | ||
| '# -------------------------------------------------------------------------------------------------------------------', | ||
| '# all files | 78.35 | 43.75 | 60.00 |', | ||
| '# -------------------------------------------------------------------------------------------------------------------', | ||
| '# end of coverage report', | ||
| ].join('\n'); | ||
| /* eslint-enable @stylistic/js/max-len */ | ||
|
|
||
| if (common.isWindows) { | ||
| return report.replaceAll('/', '\\'); | ||
| } | ||
|
|
||
| return report; | ||
| } | ||
|
|
||
| const fixture = fixtures.path('test-runner', 'coverage.js'); | ||
| const neededArguments = [ | ||
| '--experimental-test-coverage', | ||
| '--test-reporter', 'tap', | ||
| ]; | ||
|
|
||
| const coverages = [ | ||
| { flag: '--test-coverage-lines', name: 'line', actual: 78.35 }, | ||
| { flag: '--test-coverage-functions', name: 'function', actual: 60.00 }, | ||
| { flag: '--test-coverage-branches', name: 'branch', actual: 43.75 }, | ||
| ]; | ||
|
|
||
| for (const coverage of coverages) { | ||
| test(`test passing ${coverage.flag}`, async (t) => { | ||
| const result = spawnSync(process.execPath, [ | ||
| ...neededArguments, | ||
| `${coverage.flag}=25`, | ||
| fixture, | ||
| ]); | ||
|
|
||
| const stdout = result.stdout.toString(); | ||
| assert(stdout.includes(getTapCoverageFixtureReport())); | ||
| assert.doesNotMatch(stdout, RegExp(`Error: [\\d\\.]+% ${coverage.name} coverage`)); | ||
| assert.strictEqual(result.status, 0); | ||
| assert(!findCoverageFileForPid(result.pid)); | ||
| }); | ||
|
|
||
| test(`test failing ${coverage.flag}`, async (t) => { | ||
| const result = spawnSync(process.execPath, [ | ||
| ...neededArguments, | ||
| `${coverage.flag}=99`, | ||
| fixture, | ||
| ]); | ||
|
|
||
| const stdout = result.stdout.toString(); | ||
| assert(stdout.includes(getTapCoverageFixtureReport())); | ||
| assert.match(stdout, RegExp(`Error: ${coverage.actual.toFixed(2)}% ${coverage.name} coverage does not meet threshold of 99%`)); | ||
| assert.strictEqual(result.status, 1); | ||
| assert(!findCoverageFileForPid(result.pid)); | ||
| }); | ||
|
|
||
| test(`test out-of-range ${coverage.flag} (too high)`, async (t) => { | ||
| const result = spawnSync(process.execPath, [ | ||
| ...neededArguments, | ||
| `${coverage.flag}=101`, | ||
| fixture, | ||
| ]); | ||
|
|
||
| assert.match(result.stderr.toString(), RegExp(`The value of "${coverage.flag}`)); | ||
| assert.strictEqual(result.status, 1); | ||
| assert(!findCoverageFileForPid(result.pid)); | ||
| }); | ||
|
|
||
| test(`test out-of-range ${coverage.flag} (too low)`, async (t) => { | ||
| const result = spawnSync(process.execPath, [ | ||
| ...neededArguments, | ||
| `${coverage.flag}=-1`, | ||
| fixture, | ||
| ]); | ||
|
|
||
| assert.match(result.stderr.toString(), RegExp(`The value of "${coverage.flag}`)); | ||
| assert.strictEqual(result.status, 1); | ||
| assert(!findCoverageFileForPid(result.pid)); | ||
| }); | ||
| } |