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'use strict'; const common = require('../common'); const assert = require('assert'); const { promisify } = require('util'); const execFile = promisify(require('child_process').execFile); const { Worker, isMainThread, workerData } = require('worker_threads'); const variant = process.argv[process.argv.length - 1]; switch (true) { case variant === 'main-thread': { return; } case variant === 'main-thread-exit': { return process.exit(0); } case variant.startsWith('worker-thread'): { const worker = new Worker(__filename, { workerData: variant }); worker.on('error', common.mustNotCall()); worker.on('exit', common.mustCall((code) => { assert.strictEqual(code, 0); })); return; } case !isMainThread: { if (workerData === 'worker-thread-exit') { process.exit(0); } return; } } (async function() { for (const { execArgv, variant, warnings } of [ { execArgv: ['--trace-exit'], variant: 'main-thread-exit', warnings: 1 }, { execArgv: [], variant: 'main-thread-exit', warnings: 0 }, { execArgv: ['--trace-exit'], variant: 'main-thread', warnings: 0 }, { execArgv: [], variant: 'main-thread', warnings: 0 }, { execArgv: ['--trace-exit'], variant: 'worker-thread-exit', warnings: 1 }, { execArgv: [], variant: 'worker-thread-exit', warnings: 0 }, { execArgv: ['--trace-exit'], variant: 'worker-thread', warnings: 0 }, { execArgv: [], variant: 'worker-thread', warnings: 0 }, ]) { const { stdout, stderr } = await execFile(process.execPath, [...execArgv, __filename, variant]); assert.strictEqual(stdout, ''); const actualWarnings = stderr.match(/WARNING: Exited the environment with code 0/g); if (warnings === 0) { assert.strictEqual(actualWarnings, null); continue; } assert.strictEqual(actualWarnings.length, warnings); if (variant.startsWith('worker')) { const workerIds = stderr.match(/\(node:\d+, thread:\d+\)/g); assert.strictEqual(workerIds.length, warnings); } } })().then(common.mustCall());