New module for the adaptive level controlling functionality in the audio processing module

webrtc/modules/audio_processing/test/debug_dump_test.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 425 matching lines @@
     debug_dump_replayer_.RunNextEvent();
     if (event->type() == audioproc::Event::CONFIG) {
       const audioproc::Config* msg = &event->config();
       ASSERT_TRUE(msg->has_experiments_description());
       EXPECT_PRED_FORMAT2(testing::IsSubstring, "AEC3",
                           msg->experiments_description().c_str());
     }
   }
 }
 
+TEST_F(DebugDumpTest, VerifyLevelControllerExperimentalString) {
+  Config config;
+  config.Set<LevelControl>(new LevelControl(true));
+  DebugDumpGenerator generator(config);
+  generator.StartRecording();
+  generator.Process(100);
+  generator.StopRecording();
+
+  DebugDumpReplayer debug_dump_replayer_;
+
+  ASSERT_TRUE(debug_dump_replayer_.SetDumpFile(generator.dump_file_name()));
+
+  while (const rtc::Optional<audioproc::Event> event =
+             debug_dump_replayer_.GetNextEvent()) {
+    debug_dump_replayer_.RunNextEvent();
+    if (event->type() == audioproc::Event::CONFIG) {
+      const audioproc::Config* msg = &event->config();
+      ASSERT_TRUE(msg->has_experiments_description());
+      EXPECT_PRED_FORMAT2(testing::IsSubstring, "LevelController",
+                          msg->experiments_description().c_str());
+    }
+  }
+}
+
 TEST_F(DebugDumpTest, VerifyEmptyExperimentalString) {
   Config config;
   DebugDumpGenerator generator(config);
   generator.StartRecording();
   generator.Process(100);
   generator.StopRecording();
 
   DebugDumpReplayer debug_dump_replayer_;
 
   ASSERT_TRUE(debug_dump_replayer_.SetDumpFile(generator.dump_file_name()));
@@ skipping 65 matching lines @@
   config.Set<ExperimentalNs>(new ExperimentalNs(true));
   DebugDumpGenerator generator(config);
   generator.StartRecording();
   generator.Process(100);
   generator.StopRecording();
   VerifyDebugDump(generator.dump_file_name());
 }
 
 }  // namespace test
 }  // namespace webrtc