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import { spawnPromisified } from '../common/index.mjs';
import * as fixtures from '../common/fixtures.mjs';
import assert from 'node:assert';
import { execPath } from 'node:process';
import { describe, it } from 'node:test';
describe('Worker threads do not spawn infinitely', { concurrency: true }, () => {
it('should not trigger an infinite loop when using a loader exports no recognized hooks', async () => {
const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [
'--no-warnings',
'--experimental-loader',
fixtures.fileURL('empty.js'),
'--eval',
'setTimeout(() => console.log("hello"),99)',
]);
assert.strictEqual(stderr, '');
assert.match(stdout, /^hello\r?\n$/);
assert.strictEqual(code, 0);
assert.strictEqual(signal, null);
});
it('should support a CommonJS entry point and a loader that imports a CommonJS module', async () => {
const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [
'--no-warnings',
'--experimental-loader',
fixtures.fileURL('es-module-loaders/loader-with-dep.mjs'),
fixtures.path('print-delayed.js'),
]);
assert.strictEqual(stderr, '');
assert.match(stdout, /^delayed\r?\n$/);
assert.strictEqual(code, 0);
assert.strictEqual(signal, null);
});
it('should support --require and --import along with using a loader written in CJS and CJS entry point', async () => {
const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [
'--no-warnings',
'--eval',
'setTimeout(() => console.log("D"),99)',
'--import',
fixtures.fileURL('printC.js'),
'--experimental-loader',
fixtures.fileURL('printB.js'),
'--require',
fixtures.path('printA.js'),
]);
assert.strictEqual(stderr, '');
// The worker code should always run before the --import, but the console.log might arrive late.
assert.match(stdout, /^A\r?\nA\r?\n(B\r?\nC|C\r?\nB)\r?\nD\r?\n$/);
assert.strictEqual(code, 0);
assert.strictEqual(signal, null);
});
it('should support --require and --import along with using a loader written in ESM and ESM entry point', async () => {
const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [
'--no-warnings',
'--require',
fixtures.path('printA.js'),
'--experimental-loader',
'data:text/javascript,console.log("B")',
'--import',
fixtures.fileURL('printC.js'),
'--input-type=module',
'--eval',
'setTimeout(() => console.log("D"),99)',
]);
assert.strictEqual(stderr, '');
// The worker code should always run before the --import, but the console.log might arrive late.
assert.match(stdout, /^A\r?\nA\r?\n(B\r?\nC|C\r?\nB)\r?\nD\r?\n$/);
assert.strictEqual(code, 0);
assert.strictEqual(signal, null);
});
});
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