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| 1 // Copyright 2013 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/power_monitor/power_monitor.h" | |
| 6 #include "base/test/power_monitor_test_base.h" | |
| 7 #include "testing/gtest/include/gtest/gtest.h" | |
| 8 | |
| 9 namespace base { | |
| 10 | |
| 11 class PowerMonitorTest : public testing::Test { | |
| 12 protected: | |
| 13 PowerMonitorTest() { | |
| 14 power_monitor_source_ = new PowerMonitorTestSource(); | |
| 15 power_monitor_.reset(new PowerMonitor( | |
| 16 scoped_ptr<PowerMonitorSource>(power_monitor_source_))); | |
| 17 } | |
| 18 ~PowerMonitorTest() override{}; | |
| 19 | |
| 20 PowerMonitorTestSource* source() { return power_monitor_source_; } | |
| 21 PowerMonitor* monitor() { return power_monitor_.get(); } | |
| 22 | |
| 23 private: | |
| 24 PowerMonitorTestSource* power_monitor_source_; | |
| 25 scoped_ptr<PowerMonitor> power_monitor_; | |
| 26 | |
| 27 DISALLOW_COPY_AND_ASSIGN(PowerMonitorTest); | |
| 28 }; | |
| 29 | |
| 30 // PowerMonitorSource is tightly coupled with the PowerMonitor, so this test | |
| 31 // Will cover both classes | |
| 32 TEST_F(PowerMonitorTest, PowerNotifications) { | |
| 33 const int kObservers = 5; | |
| 34 | |
| 35 PowerMonitorTestObserver observers[kObservers]; | |
| 36 for (int index = 0; index < kObservers; ++index) | |
| 37 monitor()->AddObserver(&observers[index]); | |
| 38 | |
| 39 // Sending resume when not suspended should have no effect. | |
| 40 source()->GenerateResumeEvent(); | |
| 41 EXPECT_EQ(observers[0].resumes(), 0); | |
| 42 | |
| 43 // Pretend we suspended. | |
| 44 source()->GenerateSuspendEvent(); | |
| 45 // Ensure all observers were notified of the event | |
| 46 for (int index = 0; index < kObservers; ++index) | |
| 47 EXPECT_EQ(observers[index].suspends(), 1); | |
| 48 | |
| 49 // Send a second suspend notification. This should be suppressed. | |
| 50 source()->GenerateSuspendEvent(); | |
| 51 EXPECT_EQ(observers[0].suspends(), 1); | |
| 52 | |
| 53 // Pretend we were awakened. | |
| 54 source()->GenerateResumeEvent(); | |
| 55 EXPECT_EQ(observers[0].resumes(), 1); | |
| 56 | |
| 57 // Send a duplicate resume notification. This should be suppressed. | |
| 58 source()->GenerateResumeEvent(); | |
| 59 EXPECT_EQ(observers[0].resumes(), 1); | |
| 60 | |
| 61 // Pretend the device has gone on battery power | |
| 62 source()->GeneratePowerStateEvent(true); | |
| 63 EXPECT_EQ(observers[0].power_state_changes(), 1); | |
| 64 EXPECT_EQ(observers[0].last_power_state(), true); | |
| 65 | |
| 66 // Repeated indications the device is on battery power should be suppressed. | |
| 67 source()->GeneratePowerStateEvent(true); | |
| 68 EXPECT_EQ(observers[0].power_state_changes(), 1); | |
| 69 | |
| 70 // Pretend the device has gone off battery power | |
| 71 source()->GeneratePowerStateEvent(false); | |
| 72 EXPECT_EQ(observers[0].power_state_changes(), 2); | |
| 73 EXPECT_EQ(observers[0].last_power_state(), false); | |
| 74 | |
| 75 // Repeated indications the device is off battery power should be suppressed. | |
| 76 source()->GeneratePowerStateEvent(false); | |
| 77 EXPECT_EQ(observers[0].power_state_changes(), 2); | |
| 78 } | |
| 79 | |
| 80 } // namespace base | |
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