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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/hi_res_timer_manager.h" | |
| 6 | |
| 7 #include "base/memory/scoped_ptr.h" | |
| 8 #include "base/message_loop.h" | |
| 9 #include "base/power_monitor/power_monitor.h" | |
| 10 #include "base/time.h" | |
| 11 #include "testing/gtest/include/gtest/gtest.h" | |
| 12 | |
| 13 #if defined(OS_WIN) | |
| 14 // http://crbug.com/114048 | |
| 15 TEST(HiResTimerManagerTest, DISABLED_ToggleOnOff) { | |
| 16 base::MessageLoop loop; | |
| 17 scoped_ptr<base::PowerMonitor> power_monitor(new base::PowerMonitor()); | |
| 18 HighResolutionTimerManager manager; | |
| 19 | |
| 20 // At this point, we don't know if the high resolution timers are on or off, | |
| 21 // it depends on what system the tests are running on (for example, if this | |
| 22 // test is running on a laptop/battery, then the PowerMonitor would have | |
| 23 // already set the PowerState to battery power; but if we're running on a | |
| 24 // desktop, then the PowerState will be non-battery power). Simulate a power | |
| 25 // level change to get to a deterministic state. | |
| 26 manager.OnPowerStateChange(/* on_battery */ false); | |
| 27 | |
| 28 // Loop a few times to test power toggling. | |
| 29 for (int loop = 2; loop >= 0; --loop) { | |
| 30 // The manager has the high resolution clock enabled now. | |
| 31 EXPECT_TRUE(manager.hi_res_clock_available()); | |
| 32 // But the Time class has it off, because it hasn't been activated. | |
| 33 EXPECT_FALSE(base::Time::IsHighResolutionTimerInUse()); | |
| 34 | |
| 35 // Activate the high resolution timer. | |
| 36 base::Time::ActivateHighResolutionTimer(true); | |
| 37 EXPECT_TRUE(base::Time::IsHighResolutionTimerInUse()); | |
| 38 | |
| 39 // Simulate a on-battery power event. | |
| 40 manager.OnPowerStateChange(/* on_battery */ true); | |
| 41 EXPECT_FALSE(manager.hi_res_clock_available()); | |
| 42 EXPECT_FALSE(base::Time::IsHighResolutionTimerInUse()); | |
| 43 | |
| 44 // Simulate a off-battery power event. | |
| 45 manager.OnPowerStateChange(/* on_battery */ false); | |
| 46 EXPECT_TRUE(manager.hi_res_clock_available()); | |
| 47 EXPECT_TRUE(base::Time::IsHighResolutionTimerInUse()); | |
| 48 | |
| 49 // De-activate the high resolution timer. | |
| 50 base::Time::ActivateHighResolutionTimer(false); | |
| 51 } | |
| 52 } | |
| 53 #endif // defined(OS_WIN) | |
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