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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "base/timer/hi_res_timer_manager.h" | 5 #include "base/timer/hi_res_timer_manager.h" |
| 6 | 6 |
| 7 #include "base/memory/scoped_ptr.h" | 7 #include "base/memory/scoped_ptr.h" |
| 8 #include "base/message_loop/message_loop.h" | 8 #include "base/message_loop/message_loop.h" |
| 9 #include "base/power_monitor/power_monitor.h" | 9 #include "base/power_monitor/power_monitor.h" |
| 10 #include "base/power_monitor/power_monitor_device_source.h" | 10 #include "base/power_monitor/power_monitor_device_source.h" |
| 11 #include "base/time/time.h" | 11 #include "base/time/time.h" |
| 12 #include "testing/gtest/include/gtest/gtest.h" | 12 #include "testing/gtest/include/gtest/gtest.h" |
| 13 | 13 |
| 14 namespace base { | 14 namespace base { |
| 15 | 15 |
| 16 #if defined(OS_WIN) | |
| 17 TEST(HiResTimerManagerTest, ToggleOnOff) { | 16 TEST(HiResTimerManagerTest, ToggleOnOff) { |
| 18 // The power monitor creates Window to receive power notifications from | |
| 19 // Windows, which makes this test flaky if you run while the machine | |
| 20 // goes in or out of AC power. | |
| 21 base::MessageLoop loop(base::MessageLoop::TYPE_UI); | |
| 22 scoped_ptr<base::PowerMonitorSource> power_monitor_source( | |
| 23 new base::PowerMonitorDeviceSource()); | |
| 24 scoped_ptr<base::PowerMonitor> power_monitor( | |
| 25 new base::PowerMonitor(power_monitor_source.Pass())); | |
| 26 | |
| 27 HighResolutionTimerManager manager; | |
| 28 // Simulate a on-AC power event to get to a known initial state. | |
| 29 manager.OnPowerStateChange(false); | |
| 30 | |
| 31 // Loop a few times to test power toggling. | |
| 32 for (int times = 0; times != 3; ++times) { | |
| 33 // The manager has the high resolution clock enabled now. | |
| 34 EXPECT_TRUE(manager.hi_res_clock_available()); | |
| 35 // But the Time class has it off, because it hasn't been activated. | |
| 36 EXPECT_FALSE(base::Time::IsHighResolutionTimerInUse()); | |
| 37 | |
| 38 // Activate the high resolution timer. | |
| 39 base::Time::ActivateHighResolutionTimer(true); | |
| 40 EXPECT_TRUE(base::Time::IsHighResolutionTimerInUse()); | |
| 41 | |
| 42 // Simulate a on-battery power event. | |
| 43 manager.OnPowerStateChange(true); | |
| 44 EXPECT_FALSE(manager.hi_res_clock_available()); | |
| 45 EXPECT_FALSE(base::Time::IsHighResolutionTimerInUse()); | |
| 46 | |
| 47 // Back to on-AC power. | |
| 48 manager.OnPowerStateChange(false); | |
| 49 EXPECT_TRUE(manager.hi_res_clock_available()); | |
| 50 EXPECT_TRUE(base::Time::IsHighResolutionTimerInUse()); | |
| 51 | |
| 52 // De-activate the high resolution timer. | |
| 53 base::Time::ActivateHighResolutionTimer(false); | |
| 54 } | |
| 55 } | 17 } |
| 56 #endif // defined(OS_WIN) | |
| 57 | 18 |
| 58 } // namespace base | 19 } // namespace base |
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