Separate MediaCodecLoop from MediaCodecAudioDecoder

media/base/android/media_codec_loop_unittest.cc

+// Copyright 2016 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 "base/macros.h"
+#include "base/message_loop/message_loop.h"
+#include "media/base/android/media_codec_bridge.h"
+#include "media/base/android/media_codec_loop.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace media {
+
+class MockMediaCodecLoopClient : public MediaCodecLoop::Client {
+ public:
+  MOCK_CONST_METHOD0(IsAnyInputPending, bool());
+  MOCK_METHOD0(ProvideInputData, MediaCodecLoop::InputData());
+  MOCK_METHOD1(OnDecodedEos, void(const MediaCodecLoop::OutputBuffer&));
+  MOCK_METHOD1(OnDecodedFrame, bool(const MediaCodecLoop::OutputBuffer&));
+  MOCK_METHOD0(OnOutputFormatChanged, bool());
+  MOCK_METHOD0(OnCodecLoopError, void());
+};
+
+class MediaCodecLoopTest : public testing::Test {
+ public:
+  MediaCodecLoopTest() : client_(new MockMediaCodecLoopClient) {}
+
+ public:
+  std::unique_ptr<MediaCodecLoop> codec_loop_;
+  std::unique_ptr<MockMediaCodecLoopClient> client_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaCodecLoopTest);
+};
+
+TEST_F(MediaCodecLoopTest, TestConstructionWithNullCodec) {
+  std::unique_ptr<MediaCodecBridge> codec;
+  EXPECT_CALL(*client_, OnCodecLoopError()).Times(1);
+  codec_loop_.reset(new MediaCodecLoop(client_.get(), std::move(codec)));
+
+  ASSERT_FALSE(codec_loop_->GetCodec());
+}
+
+}  // namespace media