'use strict'; const common = require('../common'); const assert = require('assert'); const fixtures = require('../common/fixtures'); const { Worker } = require('worker_threads'); const wasmModule = new WebAssembly.Module(fixtures.readSync('simple.wasm')); const worker = new Worker(` const { parentPort } = require('worker_threads'); parentPort.once('message', ({ wasmModule }) => { const instance = new WebAssembly.Instance(wasmModule); parentPort.postMessage(instance.exports.add(10, 20)); }); `, { eval: true }); worker.once('message', common.mustCall((num) => assert.strictEqual(num, 30))); worker.postMessage({ wasmModule });