Add a fake audio input stream for testing purposes.

This will be used by unit tests in subsequent patches.
BUG=none
TEST=no new features added and nothing new to test

Review URL: http://codereview.chromium.org/2909015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@52464 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 51 insertions, 0 deletions

diff --git a/media/audio/fake_audio_input_stream_unittest.cc b/media/audio/fake_audio_input_stream_unittest.cc
new file mode 100644
index 0000000..16e86a4
--- /dev/null
+++ b/media/audio/fake_audio_input_stream_unittest.cc
@@ -0,0 +1,51 @@
+// Copyright (c) 2010 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/basictypes.h"
+#include "base/platform_thread.h"
+#include "media/audio/audio_io.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using ::testing::_;
+using ::testing::AtLeast;
+using ::testing::Exactly;
+using ::testing::NotNull;
+
+namespace {
+
+class MockAudioInputCallback : public AudioInputStream::AudioInputCallback {
+ public:
+  MockAudioInputCallback() {}
+
+  MOCK_METHOD1(OnClose, void(AudioInputStream* stream));
+  MOCK_METHOD2(OnError, void(AudioInputStream* stream, int error_code));
+  MOCK_METHOD3(OnData, void(AudioInputStream* stream, const uint8* src,
+                            uint32 size));
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockAudioInputCallback);
+};
+
+}
+
+// ============================================================================
+// Validate that the AudioManager::AUDIO_MOCK callbacks work.
+TEST(FakeAudioInputTest, BasicCallbacks) {
+  MockAudioInputCallback callback;
+  EXPECT_CALL(callback, OnData(NotNull(), _, _)).Times(AtLeast(5));
+  EXPECT_CALL(callback, OnError(NotNull(), _)).Times(Exactly(0));
+
+  AudioManager* audio_man = AudioManager::GetAudioManager();
+  ASSERT_TRUE(NULL != audio_man);
+  // Ask for one recorded packet every 50ms.
+  AudioInputStream* stream = audio_man->MakeAudioInputStream(
+      AudioManager::AUDIO_MOCK, 2, 8000, 8, 400);
+  ASSERT_TRUE(NULL != stream);
+  EXPECT_TRUE(stream->Open());
+  stream->Start(&callback);
+  PlatformThread::Sleep(340);  // Give sufficient time to receive 5 / 6 packets.
+  stream->Stop();
+  stream->Close();
+}
+