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| Current File : //home/ubuntu/node-v16.18.1/test/parallel/test-worker-message-port-transfer-duplicate.js |
'use strict';
const common = require('../common');
const assert = require('assert');
const { MessageChannel } = require('worker_threads');
// Test that passing duplicate transferrables in the transfer list throws
// DataCloneError exceptions.
{
const { port1, port2 } = new MessageChannel();
port2.once('message', common.mustNotCall());
const port3 = new MessageChannel().port1;
assert.throws(() => {
port1.postMessage(port3, [port3, port3]);
}, /^DataCloneError: Transfer list contains duplicate MessagePort$/);
port1.close();
}
{
const { port1, port2 } = new MessageChannel();
port2.once('message', common.mustNotCall());
const buf = new Uint8Array(10);
assert.throws(() => {
port1.postMessage(buf, [buf.buffer, buf.buffer]);
}, /^DataCloneError: Transfer list contains duplicate ArrayBuffer$/);
port1.close();
}
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