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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-worker-process-cwd.js |
'use strict';
const common = require('../common');
const assert = require('assert');
const { Worker, isMainThread, parentPort } = require('worker_threads');
// Verify that cwd changes from the main thread are handled correctly in
// workers.
// Do not use isMainThread directly, otherwise the test would time out in case
// it's started inside of another worker thread.
if (!process.env.HAS_STARTED_WORKER) {
process.env.HAS_STARTED_WORKER = '1';
if (!isMainThread) {
common.skip('This test can only run as main thread');
}
// Normalize the current working dir to also work with the root folder.
process.chdir(__dirname);
assert(!process.cwd.toString().includes('Atomics.load'));
// 1. Start the first worker.
const w = new Worker(__filename);
w.once('message', common.mustCall((message) => {
// 5. Change the cwd and send that to the spawned worker.
assert.strictEqual(message, process.cwd());
process.chdir('..');
w.postMessage(process.cwd());
}));
} else if (!process.env.SECOND_WORKER) {
process.env.SECOND_WORKER = '1';
// 2. Save the current cwd and verify that `process.cwd` includes the
// Atomics.load call and spawn a new worker.
const cwd = process.cwd();
assert(process.cwd.toString().includes('Atomics.load'));
const w = new Worker(__filename);
w.once('message', common.mustCall((message) => {
// 4. Verify at the current cwd is identical to the received and the
// original one.
assert.strictEqual(process.cwd(), message);
assert.strictEqual(message, cwd);
parentPort.postMessage(cwd);
}));
parentPort.once('message', common.mustCall((message) => {
// 6. Verify that the current cwd is identical to the received one but not
// with the original one.
assert.strictEqual(process.cwd(), message);
assert.notStrictEqual(message, cwd);
w.postMessage(message);
}));
} else {
// 3. Save the current cwd, post back to the "main" thread and verify that
// `process.cwd` includes the Atomics.load call.
const cwd = process.cwd();
// Send the current cwd to the parent.
parentPort.postMessage(cwd);
assert(process.cwd.toString().includes('Atomics.load'));
parentPort.once('message', common.mustCall((message) => {
// 7. Verify that the current cwd is identical to the received one but
// not with the original one.
assert.strictEqual(process.cwd(), message);
assert.notStrictEqual(message, cwd);
}));
}
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