mirror of https://github.com/nodejs/node.git
34 lines
1.2 KiB
JavaScript
34 lines
1.2 KiB
JavaScript
'use strict';
|
||
const common = require('../common');
|
||
const assert = require('assert');
|
||
const { MessageChannel, receiveMessageOnPort } = require('worker_threads');
|
||
|
||
const { port1, port2 } = new MessageChannel();
|
||
|
||
const message1 = { hello: 'world' };
|
||
const message2 = { foo: 'bar' };
|
||
|
||
// Make sure receiveMessageOnPort() works in a FIFO way, the same way it does
|
||
// when we’re using events.
|
||
assert.strictEqual(receiveMessageOnPort(port2), undefined);
|
||
port1.postMessage(message1);
|
||
port1.postMessage(message2);
|
||
assert.deepStrictEqual(receiveMessageOnPort(port2), { message: message1 });
|
||
assert.deepStrictEqual(receiveMessageOnPort(port2), { message: message2 });
|
||
assert.strictEqual(receiveMessageOnPort(port2), undefined);
|
||
assert.strictEqual(receiveMessageOnPort(port2), undefined);
|
||
|
||
// Make sure message handlers aren’t called.
|
||
port2.on('message', common.mustNotCall());
|
||
port1.postMessage(message1);
|
||
assert.deepStrictEqual(receiveMessageOnPort(port2), { message: message1 });
|
||
port1.close();
|
||
|
||
for (const value of [null, 0, -1, {}, []]) {
|
||
assert.throws(() => receiveMessageOnPort(value), {
|
||
name: 'TypeError',
|
||
code: 'ERR_INVALID_ARG_TYPE',
|
||
message: 'The "port" argument must be a MessagePort instance'
|
||
});
|
||
}
|