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# 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
from profile_chrome import controllers_unittest
from profile_chrome import systrace_controller
class SystraceControllerTest(controllers_unittest.BaseControllerTest):
def testGetCategories(self):
categories = \
systrace_controller.SystraceController.GetCategories(self.device)
self.assertTrue(categories)
assert 'gfx' in ' '.join(categories)
def testTracing(self):
categories = ['gfx', 'input', 'view']
ring_buffer = False
controller = systrace_controller.SystraceController(self.device,
categories,
ring_buffer)
interval = 1
try:
controller.StartTracing(interval)
finally:
controller.StopTracing()
result = controller.PullTrace()
try:
with open(result) as f:
self.assertTrue('CPU#' in f.read())
finally:
os.remove(result)
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