blob: eac12eba63028e26204d89ebac7ad1c90d83bd3a (
plain)
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
45
46
47
48
49
50
|
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import json
from adb_profile_chrome import controllers_unittest
from adb_profile_chrome import perf_controller
from adb_profile_chrome import ui
from pylib import constants
class PerfProfilerControllerTest(controllers_unittest.BaseControllerTest):
def testGetCategories(self):
if not perf_controller.PerfProfilerController.IsSupported():
return
categories = \
perf_controller.PerfProfilerController.GetCategories(self.device)
assert 'cycles' in ' '.join(categories)
def testTracing(self):
if not perf_controller.PerfProfilerController.IsSupported():
return
ui.EnableTestMode()
categories = ['cycles']
controller = perf_controller.PerfProfilerController(self.device,
categories)
interval = 1
try:
controller.StartTracing(interval)
finally:
controller.StopTracing()
result = controller.PullTrace()
# Perf-to-JSON conversion can fail if dependencies are missing.
if not result:
perf_script_path = os.path.join(constants.DIR_SOURCE_ROOT,
'tools', 'telemetry', 'telemetry', 'core', 'platform', 'profiler',
'perf_vis', 'perf_to_tracing.py')
assert not os.path.exists(perf_script_path)
return
try:
with open(result) as f:
json.loads(f.read())
finally:
os.remove(result)
|
