1 files changed, 74 insertions, 0 deletions
diff --git a/chromium/third_party/webrtc/modules/audio_processing/audio_processing_impl_unittest.cc b/chromium/third_party/webrtc/modules/audio_processing/audio_processing_impl_unittest.cc
new file mode 100644
index 00000000000..09576175756
--- /dev/null
+++ b/chromium/third_party/webrtc/modules/audio_processing/audio_processing_impl_unittest.cc
@@ -0,0 +1,74 @@
+/*
+ *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/modules/audio_processing/audio_processing_impl.h"
+
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "webrtc/config.h"
+#include "webrtc/modules/audio_processing/test/test_utils.h"
+#include "webrtc/modules/interface/module_common_types.h"
+
+using ::testing::Invoke;
+using ::testing::Return;
+
+namespace webrtc {
+
+class MockInitialize : public AudioProcessingImpl {
+ public:
+  explicit MockInitialize(const Config& config) : AudioProcessingImpl(config) {
+  }
+
+  MOCK_METHOD0(InitializeLocked, int());
+  int RealInitializeLocked() { return AudioProcessingImpl::InitializeLocked(); }
+};
+
+TEST(AudioProcessingImplTest, AudioParameterChangeTriggersInit) {
+  Config config;
+  MockInitialize mock(config);
+  ON_CALL(mock, InitializeLocked())
+      .WillByDefault(Invoke(&mock, &MockInitialize::RealInitializeLocked));
+
+  EXPECT_CALL(mock, InitializeLocked()).Times(1);
+  mock.Initialize();
+
+  AudioFrame frame;
+  // Call with the default parameters; there should be no init.
+  frame.num_channels_ = 1;
+  SetFrameSampleRate(&frame, 16000);
+  EXPECT_CALL(mock, InitializeLocked())
+      .Times(0);
+  EXPECT_NOERR(mock.ProcessStream(&frame));
+  EXPECT_NOERR(mock.AnalyzeReverseStream(&frame));
+
+  // New sample rate. (Only impacts ProcessStream).
+  SetFrameSampleRate(&frame, 32000);
+  EXPECT_CALL(mock, InitializeLocked())
+      .Times(1);
+  EXPECT_NOERR(mock.ProcessStream(&frame));
+
+  // New number of channels.
+  frame.num_channels_ = 2;
+  EXPECT_CALL(mock, InitializeLocked())
+      .Times(2);
+  EXPECT_NOERR(mock.ProcessStream(&frame));
+  // ProcessStream sets num_channels_ == num_output_channels.
+  frame.num_channels_ = 2;
+  EXPECT_NOERR(mock.AnalyzeReverseStream(&frame));
+
+  // A new sample rate passed to AnalyzeReverseStream should be an error and
+  // not cause an init.
+  SetFrameSampleRate(&frame, 16000);
+  EXPECT_CALL(mock, InitializeLocked())
+      .Times(0);
+  EXPECT_EQ(mock.kBadSampleRateError, mock.AnalyzeReverseStream(&frame));
+}
+
+}  // namespace webrtc