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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-worker-message-port-transfer-self.js |
'use strict';
const common = require('../common');
const assert = require('assert');
const util = require('util');
const { MessageChannel } = require('worker_threads');
const tick = require('../common/tick');
const { port1, port2 } = new MessageChannel();
assert.throws(common.mustCall(() => {
port1.postMessage(null, [port1]);
}), common.mustCall((err) => {
assert.strictEqual(err.name, 'DataCloneError');
assert.strictEqual(err.message, 'Transfer list contains source port');
assert.strictEqual(err.code, 25);
assert.ok(err instanceof Error);
const DOMException = err.constructor;
assert.ok(err instanceof DOMException);
assert.strictEqual(DOMException.name, 'DOMException');
return true;
}));
// The failed transfer should not affect the ports in anyway.
port2.onmessage = common.mustCall((message) => {
assert.strictEqual(message.data, 2);
const inspectedPort1 = util.inspect(port1);
const inspectedPort2 = util.inspect(port2);
assert(inspectedPort1.includes('active: true'), inspectedPort1);
assert(inspectedPort2.includes('active: true'), inspectedPort2);
port1.close();
tick(10, () => {
const inspectedPort1 = util.inspect(port1);
const inspectedPort2 = util.inspect(port2);
assert(inspectedPort1.includes('active: false'), inspectedPort1);
assert(inspectedPort2.includes('active: false'), inspectedPort2);
});
});
port1.postMessage(2);
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