Added a bitexactness test for the voice activity detector in the audio processing module.

webrtc/modules/audio_processing/test/bitexactness_tools.cc

 /*
  *  Copyright (c) 2016 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 <math.h>
 #include <string>
 
 #include "webrtc/base/array_view.h"
 #include "webrtc/modules/audio_processing/test/bitexactness_tools.h"
 
 namespace webrtc {
 namespace test {
 
+::testing::AssertionResult AssertBoolsNotEqual(const char* m_expr,

[hlundin-webrtc, 2016/03/16 15:50:20]

No, use EXPECT_EQ instead.

[peah-webrtc, 2016/03/18 05:56:05]

Done.

+                                               const char* n_expr,
+                                               const bool& output,
+                                               const bool& reference) {
+  // If the values are deemed not to be similar, return a report of the
+  // difference.
+  if (output != reference) {
+    // Lambda function that produces a string containing the bool name.
+    auto bool_description = [](bool v) {
+      if (v) {
+        return std::string("true");
+      } else {
+        return std::string("false");
+      }
+    };
+
+    return ::testing::AssertionFailure()
+           << "Actual: " << bool_description(output) << std::endl
+           << "Expected: " << bool_description(reference) << std::endl;
+  }
+  return ::testing::AssertionSuccess();
+}
+
 ::testing::AssertionResult AssertIntegersNotEqual(const char* m_expr,
                                                   const char* n_expr,
                                                   const int& output,
                                                   const int& reference) {
   // Compare the output in the reference in a soft manner.
   const int kThreshold = 1.0;
   bool equal = (abs(output - reference) <= kThreshold);
 
   // If the values are deemed not to be similar, return a report of the
   // difference.
@@ skipping 58 matching lines @@
            << std::endl
            << "Expected: "
            << print_vector_in_c_format(reference, reference.size())
            << std::endl;
   }
   return ::testing::AssertionSuccess();
 }
 
 }  // namespace test
 }  // namespace webrtc