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nodejs/test/parallel/test-runner-watch-mode-complex.mjs
Yagiz Nizipli bb8cc65edb
lib: replace createDeferredPromise util with Promise.withResolvers
PR-URL: https://github.com/nodejs/node/pull/54836
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2024-10-19 10:13:58 +02:00

109 lines
3.3 KiB
JavaScript

import * as common from '../common/index.mjs';
import { describe, it } from 'node:test';
import assert from 'node:assert';
import { spawn } from 'node:child_process';
import { writeFile, unlink } from 'node:fs/promises';
import { setTimeout } from 'node:timers/promises';
import tmpdir from '../common/tmpdir.js';
if (common.isIBMi)
common.skip('IBMi does not support `fs.watch()`');
if (common.isAIX)
common.skip('folder watch capability is limited in AIX.');
tmpdir.refresh();
// This test updates these files repeatedly,
// Reading them from disk is unreliable due to race conditions.
const fixtureContent = {
'dependency.js': 'module.exports = {};',
'dependency.mjs': 'export const a = 1;',
// Test 1
'test.js': `
const test = require('node:test');
require('./dependency.js');
import('./dependency.mjs');
import('data:text/javascript,');
test('first test has ran');`,
// Test 2
'test-2.mjs': `
import test from 'node:test';
import './dependency.js';
import { a } from './dependency.mjs';
import 'data:text/javascript,';
test('second test has ran');`,
// Test file to be deleted
'test-to-delete.mjs': `
import test from 'node:test';
import './dependency.js';
import { a } from './dependency.mjs';
import 'data:text/javascript,';
test('test to delete has ran');`,
};
const fixturePaths = Object.fromEntries(Object.keys(fixtureContent)
.map((file) => [file, tmpdir.resolve(file)]));
async function setupFixtures() {
return Promise.all(Object.entries(fixtureContent)
.map(([file, content]) => writeFile(fixturePaths[file], content, { flush: true })));
}
await setupFixtures();
describe('test runner watch mode with more complex setup', () => {
it('should run tests when a dependency changed after a watched test file being deleted', async () => {
const ran1 = Promise.withResolvers();
const ran2 = Promise.withResolvers();
const child = spawn(process.execPath,
['--watch', '--test'],
{ encoding: 'utf8', stdio: 'pipe', cwd: tmpdir.path });
let stdout = '';
let currentRun = '';
const runs = [];
child.stdout.on('data', (data) => {
stdout += data.toString();
currentRun += data.toString();
const testRuns = stdout.match(/duration_ms\s\d+/g);
if (testRuns?.length >= 2) {
ran2.resolve();
return;
}
if (testRuns?.length >= 1) ran1.resolve();
});
await ran1.promise;
runs.push(currentRun);
currentRun = '';
const fileToDeletePathLocal = tmpdir.resolve('test-to-delete.mjs');
await unlink(fileToDeletePathLocal);
await setTimeout(common.platformTimeout(1000));
const content = fixtureContent['dependency.mjs'];
const path = fixturePaths['dependency.mjs'];
await writeFile(path, content, { flush: true });
await setTimeout(common.platformTimeout(1000));
await ran2.promise;
runs.push(currentRun);
currentRun = '';
child.kill();
assert.strictEqual(runs.length, 2);
const [firstRun, secondRun] = runs;
assert.match(firstRun, /tests 3/);
assert.match(firstRun, /pass 3/);
assert.match(firstRun, /fail 0/);
assert.match(firstRun, /cancelled 0/);
assert.match(secondRun, /tests 2/);
assert.match(secondRun, /pass 2/);
assert.match(secondRun, /fail 0/);
assert.match(secondRun, /cancelled 0/);
});
});