Introduce TimeSource notifications to the VideoRenderer.

media/renderers/renderer_impl_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/test/simple_test_tick_clock.h"
@@ skipping 302 matching lines @@
   SetAudioRendererInitializeExpectations(PIPELINE_OK);
   SetVideoRendererInitializeExpectations(PIPELINE_ERROR_INITIALIZATION_FAILED);
   InitializeAndExpect(PIPELINE_ERROR_INITIALIZATION_FAILED);
 }
 
 TEST_F(RendererImplTest, StartPlayingFrom) {
   InitializeWithAudioAndVideo();
   Play();
 }
 
+TEST_F(RendererImplTest, StartPlayingFromWithPlaybackRate) {
+  InitializeWithAudioAndVideo();
+
+  // Play with a zero playback rate shouldn't start time.
+  Play();
+  Mock::VerifyAndClearExpectations(video_renderer_);
+
+  // Positive playback rate when ticking should start time.
+  EXPECT_CALL(*video_renderer_, OnTimeStateChanged(true));
+  SetPlaybackRate(1.0);
+  Mock::VerifyAndClearExpectations(video_renderer_);
+
+  // Double notifications shouldn't be sent.
+  SetPlaybackRate(1.0);
+  Mock::VerifyAndClearExpectations(video_renderer_);
+
+  // Zero playback rate should stop time.
+  EXPECT_CALL(*video_renderer_, OnTimeStateChanged(false));
+  SetPlaybackRate(0.0);
+  Mock::VerifyAndClearExpectations(video_renderer_);
+
+  // Double notifications shouldn't be sent.
+  SetPlaybackRate(0.0);
+  Mock::VerifyAndClearExpectations(video_renderer_);
+
+  // Starting playback and flushing should cause time to stop.
+  EXPECT_CALL(*video_renderer_, OnTimeStateChanged(true));
+  EXPECT_CALL(*video_renderer_, OnTimeStateChanged(false));
+  SetPlaybackRate(1.0);
+  Flush(false);
+
+  // A positive playback rate when playback isn't started should do nothing.
+  SetPlaybackRate(1.0);
+}
+
 TEST_F(RendererImplTest, FlushAfterInitialization) {
   InitializeWithAudioAndVideo();
   Flush(true);
 }
 
 TEST_F(RendererImplTest, FlushAfterPlay) {
   InitializeWithAudioAndVideo();
   Play();
   Flush(false);
 }
@@ skipping 193 matching lines @@
   Mock::VerifyAndClearExpectations(&time_source_);
 
   EXPECT_CALL(time_source_, StopTicking());
   audio_buffering_state_cb_.Run(BUFFERING_HAVE_NOTHING);
 
   // Nothing else should primed on the message loop.
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace media