Conversational Speech tool, MultiEndCall class and unit tests via mocking

webrtc/modules/audio_processing/test/conversational_speech/mock_wavreader.cc

+/*
+ *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.

[hlundin-webrtc, 2017/03/24 13:44:05]

Can this file be folded into the h-file?

[AleBzk, 2017/03/27 08:24:13]

Done.

+ *
+ *  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/test/conversational_speech/mock_wavreader.h"
+
+#include <stdint.h>

[hlundin-webrtc, 2017/03/24 13:44:05]

#include "webrtc/typedefs.h"

[AleBzk, 2017/03/27 08:24:13]

Done.

+#include <cstddef>
+#include <string>
+
+namespace webrtc {
+namespace test {
+namespace conversational_speech {
+
+MockWavReader::MockWavReader(const std::string& filepath) {
+  // TODO(alessiob): extract filename, parse to extract sample rate, number of

[hlundin-webrtc, 2017/03/24 13:44:05]

Since this is a mock, I think you can add extra ctor parameters for the
information you want, and skip any complicated string-parsing for that
information. The ctor of the mock does not have to match the mocked ctor.

[AleBzk, 2017/03/27 08:24:13]

Right. I will delegate its factory (namely, MockWavReaderFactory) to pass
sampling rate, # samples and # channels (parameters) directly to the
MockWavReader ctor. In this way, I don't need to parse strings. However, we
still need additional code to simulate audio tracks with different params.

I will do the following:
- create the mock factory instance
- before injecting the mock factory, the client code sets a map to link
filenames to params
- inject the mock factory
In this way, the factory knows sampling rate, # samples and # channels for each
"fake" audio file.
The MockWavReader objects will then be created by simply receiving the params
from the factory - which uses the aforementioned map and passed filename as key.

+  // channels and number of samples (to be used for unit tests).
+}
+
+MockWavReader::~MockWavReader() {

[hlundin-webrtc, 2017/03/24 13:44:05]

= default

[AleBzk, 2017/03/27 08:24:13]

Done.

+}
+
+}  // namespace conversational_speech
+}  // namespace test
+}  // namespace webrtc