File: test-event-emitter-memory-leak.js

package info (click to toggle)
nodejs 0.10.29~dfsg-2
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 32,760 kB
  • ctags: 58,506
  • sloc: cpp: 330,356; ansic: 47,440; python: 12,756; sh: 1,365; makefile: 665; lisp: 222; ruby: 76; xml: 16; awk: 10
file content (44 lines) | stat: -rw-r--r-- 1,801 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// Flags: --expose-gc

// Add and remove a lot of different events to an EventEmitter, then check
// that we didn't leak the event names.
var common = require('../common');
var assert = require('assert');
var events = require('events');

assert.equal(typeof gc, 'function', 'Run this test with --expose-gc');
gc();

var before = process.memoryUsage().heapUsed;
var e = new events.EventEmitter();

for (var i = 0; i < 2.5e5; ++i) {
  var name = 'a-pretty-long-event-name-' + i;
  e.on(name, assert.fail);
  e.removeListener(name, assert.fail);
}
gc();

var after = process.memoryUsage().heapUsed;
assert(after - before < 1024*1024, 'EventEmitter leaks event names.');