62 lines
2.4 KiB
C++
62 lines
2.4 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/timer/hi_res_timer_manager.h"
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#include "base/memory/scoped_ptr.h"
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#include "base/message_loop/message_loop.h"
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#include "base/power_monitor/power_monitor.h"
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#include "base/power_monitor/power_monitor_device_source.h"
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#include "base/time/time.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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#if defined(OS_WIN)
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// http://crbug.com/114048
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TEST(HiResTimerManagerTest, DISABLED_ToggleOnOff) {
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base::MessageLoop loop;
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scoped_ptr<base::PowerMonitorSource> power_monitor_source(
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new base::PowerMonitorDeviceSource());
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scoped_ptr<base::PowerMonitor> power_monitor(
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new base::PowerMonitor(power_monitor_source.Pass()));
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HighResolutionTimerManager manager;
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// At this point, we don't know if the high resolution timers are on or off,
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// it depends on what system the tests are running on (for example, if this
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// test is running on a laptop/battery, then the PowerMonitor would have
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// already set the PowerState to battery power; but if we're running on a
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// desktop, then the PowerState will be non-battery power). Simulate a power
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// level change to get to a deterministic state.
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manager.OnPowerStateChange(/* on_battery */ false);
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// Loop a few times to test power toggling.
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for (int loop = 2; loop >= 0; --loop) {
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// The manager has the high resolution clock enabled now.
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EXPECT_TRUE(manager.hi_res_clock_available());
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// But the Time class has it off, because it hasn't been activated.
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EXPECT_FALSE(base::Time::IsHighResolutionTimerInUse());
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// Activate the high resolution timer.
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base::Time::ActivateHighResolutionTimer(true);
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EXPECT_TRUE(base::Time::IsHighResolutionTimerInUse());
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// Simulate a on-battery power event.
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manager.OnPowerStateChange(/* on_battery */ true);
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EXPECT_FALSE(manager.hi_res_clock_available());
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EXPECT_FALSE(base::Time::IsHighResolutionTimerInUse());
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// Simulate a off-battery power event.
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manager.OnPowerStateChange(/* on_battery */ false);
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EXPECT_TRUE(manager.hi_res_clock_available());
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EXPECT_TRUE(base::Time::IsHighResolutionTimerInUse());
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// De-activate the high resolution timer.
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base::Time::ActivateHighResolutionTimer(false);
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}
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}
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#endif // defined(OS_WIN)
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} // namespace base
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