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
22'use strict';
23// Flags: --max_old_space_size=32 --expose_gc
24
25const common = require('../common');
26
27if (process.config.variables.asan) {
28  common.skip('ASAN messes with memory measurements');
29}
30
31const assert = require('assert');
32const vm = require('vm');
33
34const baselineRss = process.memoryUsage.rss();
35
36const start = Date.now();
37
38const interval = setInterval(function() {
39  try {
40    vm.runInNewContext('throw 1;');
41  } catch {
42    // Continue regardless of error.
43  }
44
45  global.gc();
46  const rss = process.memoryUsage.rss();
47  assert.ok(rss < baselineRss + 32 * 1024 * 1024,
48            `memory usage: ${rss} baseline: ${baselineRss}`);
49
50  // Stop after 5 seconds.
51  if (Date.now() - start > 5 * 1000) {
52    clearInterval(interval);
53
54    testContextLeak();
55  }
56}, 1);
57
58function testContextLeak() {
59  // TODO: This needs a comment explaining what it's doing. Will it crash the
60  // test if there is a memory leak? Or what?
61  for (let i = 0; i < 1000; i++)
62    vm.createContext({});
63}
64