source: trip-planner-front/node_modules/events/tests/subclass.js@ b738035

Last change on this file since b738035 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1// Copyright Joyent, Inc. and other Node contributors.
2//
3// Permission is hereby granted, free of charge, to any person obtaining a
4// copy of this software and associated documentation files (the
5// "Software"), to deal in the Software without restriction, including
6// without limitation the rights to use, copy, modify, merge, publish,
7// distribute, sublicense, and/or sell copies of the Software, and to permit
8// persons to whom the Software is furnished to do so, subject to the
9// following conditions:
10//
11// The above copyright notice and this permission notice shall be included
12// in all copies or substantial portions of the Software.
13//
14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
18// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20// USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22var common = require('./common');
23var test = require('tape');
24var assert = require('assert');
25var EventEmitter = require('../').EventEmitter;
26var util = require('util');
27
28util.inherits(MyEE, EventEmitter);
29
30function MyEE(cb) {
31 this.once(1, cb);
32 this.emit(1);
33 this.removeAllListeners();
34 EventEmitter.call(this);
35}
36
37var myee = new MyEE(common.mustCall());
38
39
40util.inherits(ErrorEE, EventEmitter);
41function ErrorEE() {
42 this.emit('error', new Error('blerg'));
43}
44
45assert.throws(function() {
46 new ErrorEE();
47}, /blerg/);
48
49test.onFinish(function() {
50 assert.ok(!(myee._events instanceof Object));
51 assert.strictEqual(Object.keys(myee._events).length, 0);
52});
53
54
55function MyEE2() {
56 EventEmitter.call(this);
57}
58
59MyEE2.prototype = new EventEmitter();
60
61var ee1 = new MyEE2();
62var ee2 = new MyEE2();
63
64ee1.on('x', function() {});
65
66assert.strictEqual(ee2.listenerCount('x'), 0);
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