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40 lines
1.5 KiB
JavaScript
40 lines
1.5 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { MessageChannel, receiveMessageOnPort } = require('worker_threads');
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const { port1, port2 } = new MessageChannel();
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const message1 = { hello: 'world' };
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const message2 = { foo: 'bar' };
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// Make sure receiveMessageOnPort() works in a FIFO way, the same way it does
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// when we’re using events.
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assert.strictEqual(receiveMessageOnPort(port2), undefined);
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port1.postMessage(message1);
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port1.postMessage(message2);
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assert.deepStrictEqual(receiveMessageOnPort(port2), { message: message1 });
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assert.deepStrictEqual(receiveMessageOnPort(port2), { message: message2 });
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assert.strictEqual(receiveMessageOnPort(port2), undefined);
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assert.strictEqual(receiveMessageOnPort(port2), undefined);
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// Make sure message handlers aren’t called.
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port2.addEventListener('message', common.mustNotCall());
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port1.postMessage(message1);
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assert.deepStrictEqual(receiveMessageOnPort(port2), { message: message1 });
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port1.close();
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for (const value of [null, 0, -1, {}, []]) {
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assert.throws(() => receiveMessageOnPort(value), {
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name: 'TypeError',
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code: 'ERR_INVALID_ARG_TYPE',
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message: 'The "port" argument must be a MessagePort instance'
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});
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}
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