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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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