1'use strict';
2const common = require('../common');
3const assert = require('assert');
4
5const { MessageChannel } = require('worker_threads');
6
7{
8  const { port1: basePort1, port2: basePort2 } = new MessageChannel();
9  const {
10    port1: transferredPort1, port2: transferredPort2
11  } = new MessageChannel();
12
13  basePort1.postMessage({ transferredPort1 }, [ transferredPort1 ]);
14  basePort2.on('message', common.mustCall(({ transferredPort1 }) => {
15    transferredPort1.postMessage('foobar');
16    transferredPort2.on('message', common.mustCall((msg) => {
17      assert.strictEqual(msg, 'foobar');
18      transferredPort1.close(common.mustCall());
19      basePort1.close(common.mustCall());
20    }));
21  }));
22}
23