node/test/parallel/test-experimental-shared-va...

39 lines
1.3 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const { spawnSync } = require('child_process');
const { Worker, parentPort } = require('worker_threads');
if (process.env.TEST_CHILD_PROCESS === '1') {
// Do not use isMainThread so that this test itself can be run inside a Worker.
if (!process.env.HAS_STARTED_WORKER) {
process.env.HAS_STARTED_WORKER = 1;
const m = new globalThis.SharedArray(16);
const worker = new Worker(__filename);
worker.once('message', common.mustCall((message) => {
assert.strictEqual(message, m);
}));
worker.postMessage(m);
} else {
parentPort.once('message', common.mustCall((message) => {
// Simple echo.
parentPort.postMessage(message);
}));
}
} else {
if (process.config.variables.v8_enable_pointer_compression === 1) {
common.skip('--harmony-struct cannot be used with pointer compression');
}
const args = ['--harmony-struct', __filename];
const options = { env: { TEST_CHILD_PROCESS: '1', ...process.env } };
const child = spawnSync(process.execPath, args, options);
assert.strictEqual(child.stderr.toString().trim(), '');
assert.strictEqual(child.stdout.toString().trim(), '');
assert.strictEqual(child.status, 0);
assert.strictEqual(child.signal, null);
}