Ensures that audio tasks cannot run after AudioManager is deleted.

media/audio/cras/cras_input_unittest.cc

 // Copyright (c) 2012 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 <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
@@ skipping 50 matching lines @@
   FakeAudioLogFactory fake_audio_log_factory_;
 };
 
 class CrasInputStreamTest : public testing::Test {
  protected:
   CrasInputStreamTest() {
     mock_manager_.reset(new StrictMock<MockAudioManagerCrasInput>());
     base::RunLoop().RunUntilIdle();
   }
 
-  ~CrasInputStreamTest() override {}
+  ~CrasInputStreamTest() override {
+    mock_manager_->GetTaskRunner()->PostTask(
+        FROM_HERE, base::Bind(&media::AudioManager::Shutdown,
+                              base::Unretained(mock_manager_.get())));
+  }
 
   CrasInputStream* CreateStream(ChannelLayout layout) {
     return CreateStream(layout, kTestFramesPerPacket);
   }
 
   CrasInputStream* CreateStream(ChannelLayout layout,
                                 int32_t samples_per_packet) {
     return CreateStream(layout, samples_per_packet,
                         AudioDeviceDescription::kDefaultDeviceId);
   }
@@ skipping 36 matching lines @@
   }
 
   static const unsigned int kTestBitsPerSample;
   static const unsigned int kTestCaptureDurationMs;
   static const ChannelLayout kTestChannelLayout;
   static const AudioParameters::Format kTestFormat;
   static const uint32_t kTestFramesPerPacket;
   static const int kTestSampleRate;
 
   base::TestMessageLoop message_loop_;
-  std::unique_ptr<StrictMock<MockAudioManagerCrasInput>, AudioManagerDeleter>
-      mock_manager_;
+  std::unique_ptr<StrictMock<MockAudioManagerCrasInput>> mock_manager_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CrasInputStreamTest);
 };
 
 const unsigned int CrasInputStreamTest::kTestBitsPerSample = 16;
 const unsigned int CrasInputStreamTest::kTestCaptureDurationMs = 250;
 const ChannelLayout CrasInputStreamTest::kTestChannelLayout =
     CHANNEL_LAYOUT_STEREO;
 const AudioParameters::Format CrasInputStreamTest::kTestFormat =
@@ skipping 83 matching lines @@
 
 TEST_F(CrasInputStreamTest, CaptureLoopback) {
   CrasInputStream* test_stream =
       CreateStream(CHANNEL_LAYOUT_STEREO, kTestFramesPerPacket,
                    AudioDeviceDescription::kLoopbackInputDeviceId);
   EXPECT_TRUE(test_stream->Open());
   test_stream->Close();
 }
 
 }  // namespace media