61 lines
1.7 KiB
JavaScript
61 lines
1.7 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const {
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Worker, MessageChannel
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} = require('worker_threads');
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const channel = new MessageChannel();
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const workerData = { mesage: channel.port1 };
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const transferList = [channel.port1];
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const meowScript = () => 'meow';
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{
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// Should receive the transferList param.
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new Worker(`${meowScript}`, { eval: true, workerData, transferList });
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}
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{
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// Should work with more than one MessagePort.
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const channel1 = new MessageChannel();
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const channel2 = new MessageChannel();
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const workerData = { message: channel1.port1, message2: channel2.port1 };
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const transferList = [channel1.port1, channel2.port1];
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new Worker(`${meowScript}`, { eval: true, workerData, transferList });
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}
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{
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const uint8Array = new Uint8Array([ 1, 2, 3, 4 ]);
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assert.deepStrictEqual(uint8Array.length, 4);
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new Worker(`
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const { parentPort, workerData } = require('worker_threads');
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parentPort.postMessage(workerData);
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`, {
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eval: true,
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workerData: uint8Array,
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transferList: [uint8Array.buffer]
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}).on(
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'message',
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(message) =>
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assert.deepStrictEqual(message, Uint8Array.of(1, 2, 3, 4))
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);
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assert.deepStrictEqual(uint8Array.length, 0);
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}
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{
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// Should throw on non valid transferList input.
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const channel1 = new MessageChannel();
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const channel2 = new MessageChannel();
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const workerData = { message: channel1.port1, message2: channel2.port1 };
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assert.throws(() => new Worker(`${meowScript}`, {
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eval: true,
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workerData,
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transferList: []
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}), {
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code: 'ERR_MISSING_MESSAGE_PORT_IN_TRANSFER_LIST',
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message: 'MessagePort was found in message but not listed in transferList'
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});
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}
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