tools/profiler/tests/xpcshell/test_pause.js

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 add_task(async () => {
   6   Assert.ok(!Services.profiler.IsActive());
   7   Assert.ok(!Services.profiler.IsPaused());
   8
   9   let startPromise = Services.profiler.StartProfiler(1000, 10, []);
  10
  11   // Default: Active and not paused.
  12   Assert.ok(Services.profiler.IsActive());
  13   Assert.ok(!Services.profiler.IsPaused());
  14   Assert.ok(!Services.profiler.IsSamplingPaused());
  15
  16   await startPromise;
  17   Assert.ok(Services.profiler.IsActive());
  18   Assert.ok(!Services.profiler.IsPaused());
  19   Assert.ok(!Services.profiler.IsSamplingPaused());
  20
  21   // Pause everything, implicitly pauses sampling.
  22   let pausePromise = Services.profiler.Pause();
  23
  24   Assert.ok(Services.profiler.IsActive());
  25   Assert.ok(Services.profiler.IsPaused());
  26   Assert.ok(Services.profiler.IsSamplingPaused());
  27
  28   await pausePromise;
  29   Assert.ok(Services.profiler.IsActive());
  30   Assert.ok(Services.profiler.IsPaused());
  31   Assert.ok(Services.profiler.IsSamplingPaused());
  32
  33   // While fully paused, pause and resume sampling only, no expected changes.
  34   let pauseSamplingPromise = Services.profiler.PauseSampling();
  35
  36   Assert.ok(Services.profiler.IsActive());
  37   Assert.ok(Services.profiler.IsPaused());
  38   Assert.ok(Services.profiler.IsSamplingPaused());
  39
  40   await pauseSamplingPromise;
  41   Assert.ok(Services.profiler.IsActive());
  42   Assert.ok(Services.profiler.IsPaused());
  43   Assert.ok(Services.profiler.IsSamplingPaused());
  44
  45   let resumeSamplingPromise = Services.profiler.ResumeSampling();
  46
  47   Assert.ok(Services.profiler.IsActive());
  48   Assert.ok(Services.profiler.IsPaused());
  49   Assert.ok(Services.profiler.IsSamplingPaused());
  50
  51   await resumeSamplingPromise;
  52   Assert.ok(Services.profiler.IsActive());
  53   Assert.ok(Services.profiler.IsPaused());
  54   Assert.ok(Services.profiler.IsSamplingPaused());
  55
  56   // Resume everything.
  57   let resumePromise = Services.profiler.Resume();
  58
  59   Assert.ok(Services.profiler.IsActive());
  60   Assert.ok(!Services.profiler.IsPaused());
  61   Assert.ok(!Services.profiler.IsSamplingPaused());
  62
  63   await resumePromise;
  64   Assert.ok(Services.profiler.IsActive());
  65   Assert.ok(!Services.profiler.IsPaused());
  66   Assert.ok(!Services.profiler.IsSamplingPaused());
  67
  68   // Pause sampling only.
  69   let pauseSampling2Promise = Services.profiler.PauseSampling();
  70
  71   Assert.ok(Services.profiler.IsActive());
  72   Assert.ok(!Services.profiler.IsPaused());
  73   Assert.ok(Services.profiler.IsSamplingPaused());
  74
  75   await pauseSampling2Promise;
  76   Assert.ok(Services.profiler.IsActive());
  77   Assert.ok(!Services.profiler.IsPaused());
  78   Assert.ok(Services.profiler.IsSamplingPaused());
  79
  80   // While sampling is paused, pause everything.
  81   let pause2Promise = Services.profiler.Pause();
  82
  83   Assert.ok(Services.profiler.IsActive());
  84   Assert.ok(Services.profiler.IsPaused());
  85   Assert.ok(Services.profiler.IsSamplingPaused());
  86
  87   await pause2Promise;
  88   Assert.ok(Services.profiler.IsActive());
  89   Assert.ok(Services.profiler.IsPaused());
  90   Assert.ok(Services.profiler.IsSamplingPaused());
  91
  92   // Resume, but sampling is still paused separately.
  93   let resume2promise = Services.profiler.Resume();
  94
  95   Assert.ok(Services.profiler.IsActive());
  96   Assert.ok(!Services.profiler.IsPaused());
  97   Assert.ok(Services.profiler.IsSamplingPaused());
  98
  99   await resume2promise;
 100   Assert.ok(Services.profiler.IsActive());
 101   Assert.ok(!Services.profiler.IsPaused());
 102   Assert.ok(Services.profiler.IsSamplingPaused());
 103
 104   // Resume sampling only.
 105   let resumeSampling2Promise = Services.profiler.ResumeSampling();
 106
 107   Assert.ok(Services.profiler.IsActive());
 108   Assert.ok(!Services.profiler.IsPaused());
 109   Assert.ok(!Services.profiler.IsSamplingPaused());
 110
 111   await resumeSampling2Promise;
 112   Assert.ok(Services.profiler.IsActive());
 113   Assert.ok(!Services.profiler.IsPaused());
 114   Assert.ok(!Services.profiler.IsSamplingPaused());
 115
 116   let stopPromise = Services.profiler.StopProfiler();
 117   Assert.ok(!Services.profiler.IsActive());
 118   // Stopping is not pausing.
 119   Assert.ok(!Services.profiler.IsPaused());
 120   Assert.ok(!Services.profiler.IsSamplingPaused());
 121
 122   await stopPromise;
 123   Assert.ok(!Services.profiler.IsActive());
 124   Assert.ok(!Services.profiler.IsPaused());
 125   Assert.ok(!Services.profiler.IsSamplingPaused());
 126 });