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worker: add test for messagePort.onmessage #21510

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worker: add test for messagePort.onmessage #21510

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worker: add test for messagePort.onmessage
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@targos
targos committed Jun 24, 2018
commit efde0805da4564f55508e4f58ccfc504610b2f18
18 changes: 18 additions & 0 deletions test/parallel/test-worker-onmessage.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
// Flags: --experimental-worker
'use strict';
const common = require('../common');
const assert = require('assert');
const { Worker, isMainThread, parentPort } = require('worker_threads');

if (isMainThread) {
const w = new Worker(__filename);
w.on('message', common.mustCall((message) => {
assert.strictEqual(message, 4);
w.terminate();
}));
w.postMessage(2);
} else {
parentPort.onmessage = common.mustCall((message) => {
parentPort.postMessage(message * 2);
});
}