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1 # Copyright 2014 The Chromium Authors. All rights reserved. | |
2 # Use of this source code is governed by a BSD-style license that can be | |
3 # found in the LICENSE file. | |
4 | |
5 import os | |
6 | |
7 from adb_profile_chrome import controllers_unittest | |
8 from adb_profile_chrome import systrace_controller | |
9 | |
10 | |
11 class SystraceControllerTest(controllers_unittest.BaseControllerTest): | |
12 def testGetCategories(self): | |
13 categories = \ | |
14 systrace_controller.SystraceController.GetCategories(self.device) | |
15 self.assertTrue(categories) | |
16 assert 'gfx' in ' '.join(categories) | |
17 | |
18 def testTracing(self): | |
19 categories = ['gfx', 'input', 'view'] | |
20 ring_buffer = False | |
21 controller = systrace_controller.SystraceController(self.device, | |
22 categories, | |
23 ring_buffer) | |
24 | |
25 interval = 1 | |
26 try: | |
27 controller.StartTracing(interval) | |
28 finally: | |
29 controller.StopTracing() | |
30 | |
31 result = controller.PullTrace() | |
32 try: | |
33 with open(result) as f: | |
34 self.assertTrue('CPU#' in f.read()) | |
35 finally: | |
36 os.remove(result) | |
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