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/run_loop.h" 6 #include "base/time/time.h" 7 #include "content/child/blink_platform_impl.h" 8 #include "testing/gtest/include/gtest/gtest.h" 9 10 namespace content { 11 12 // Derives BlinkPlatformImpl for testing shared timers. 13 class TestBlinkPlatformImpl : public BlinkPlatformImpl { 14 public: TestBlinkPlatformImpl()15 TestBlinkPlatformImpl() : mock_monotonically_increasing_time_(0) {} 16 17 // Returns mock time when enabled. monotonicallyIncreasingTime()18 virtual double monotonicallyIncreasingTime() OVERRIDE { 19 if (mock_monotonically_increasing_time_ > 0.0) 20 return mock_monotonically_increasing_time_; 21 return BlinkPlatformImpl::monotonicallyIncreasingTime(); 22 } 23 OnStartSharedTimer(base::TimeDelta delay)24 virtual void OnStartSharedTimer(base::TimeDelta delay) OVERRIDE { 25 shared_timer_delay_ = delay; 26 } 27 shared_timer_delay()28 base::TimeDelta shared_timer_delay() { return shared_timer_delay_; } 29 set_mock_monotonically_increasing_time(double mock_time)30 void set_mock_monotonically_increasing_time(double mock_time) { 31 mock_monotonically_increasing_time_ = mock_time; 32 } 33 34 private: 35 base::TimeDelta shared_timer_delay_; 36 double mock_monotonically_increasing_time_; 37 38 DISALLOW_COPY_AND_ASSIGN(TestBlinkPlatformImpl); 39 }; 40 TEST(BlinkPlatformTest,SuspendResumeSharedTimer)41TEST(BlinkPlatformTest, SuspendResumeSharedTimer) { 42 base::MessageLoop message_loop; 43 44 TestBlinkPlatformImpl platform_impl; 45 46 // Set a timer to fire as soon as possible. 47 platform_impl.setSharedTimerFireInterval(0); 48 49 // Suspend timers immediately so the above timer wouldn't be fired. 50 platform_impl.SuspendSharedTimer(); 51 52 // The above timer would have posted a task which can be processed out of the 53 // message loop. 54 base::RunLoop().RunUntilIdle(); 55 56 // Set a mock time after 1 second to simulate timers suspended for 1 second. 57 double new_time = base::Time::Now().ToDoubleT() + 1; 58 platform_impl.set_mock_monotonically_increasing_time(new_time); 59 60 // Resume timers so that the timer set above will be set again to fire 61 // immediately. 62 platform_impl.ResumeSharedTimer(); 63 64 EXPECT_TRUE(base::TimeDelta() == platform_impl.shared_timer_delay()); 65 } 66 67 } // namespace content 68