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 virtual ~PowerMonitorTest() {}; 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 81
