mirror of https://gitee.com/openkylin/nodejs.git
70 lines
2.1 KiB
JavaScript
70 lines
2.1 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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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 EventEmitter = require('events').EventEmitter;
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Object.setPrototypeOf(MyEE.prototype, EventEmitter.prototype);
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Object.setPrototypeOf(MyEE, EventEmitter);
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function MyEE(cb) {
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this.once(1, cb);
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this.emit(1);
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this.removeAllListeners();
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EventEmitter.call(this);
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}
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const myee = new MyEE(common.mustCall());
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myee.hasOwnProperty('usingDomains');
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Object.setPrototypeOf(ErrorEE.prototype, EventEmitter.prototype);
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Object.setPrototypeOf(ErrorEE, EventEmitter);
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function ErrorEE() {
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this.emit('error', new Error('blerg'));
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}
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assert.throws(function() {
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new ErrorEE();
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}, /blerg/);
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process.on('exit', function() {
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assert(!(myee._events instanceof Object));
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assert.deepStrictEqual(Object.keys(myee._events), []);
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console.log('ok');
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});
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function MyEE2() {
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EventEmitter.call(this);
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}
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MyEE2.prototype = new EventEmitter();
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const ee1 = new MyEE2();
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const ee2 = new MyEE2();
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ee1.on('x', () => {});
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assert.strictEqual(ee2.listenerCount('x'), 0);
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