1'use strict'; 2 3const common = require('../common'); 4const assert = require('assert'); 5const { 6 Worker, 7 threadId: parentThreadId, 8} = require('worker_threads'); 9 10process.on('worker', common.mustCall(({ threadId }) => { 11 assert.strictEqual(threadId, parentThreadId + 1); 12})); 13 14new Worker('', { eval: true }); 15