Adding basic implementation of AudioNetworkAdaptor.

webrtc/modules/audio_coding/audio_network_adaptor/controller_manager_unittest.cc

Index: webrtc/modules/audio_coding/audio_network_adaptor/controller_manager_unittest.cc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/controller_manager_unittest.cc b/webrtc/modules/audio_coding/audio_network_adaptor/controller_manager_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f14f13c94563a2f5cf345e0df04ddf44b24c4777
--- /dev/null
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/controller_manager_unittest.cc
@@ -0,0 +1,72 @@
+/*
+ *  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 <utility>
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "webrtc/modules/audio_coding/audio_network_adaptor/controller_manager.h"
+#include "webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_controller.h"
+
+namespace webrtc {
+
+using ::testing::NiceMock;
+
+namespace {
+
+constexpr size_t kNumControllers = 3;
+
+struct ControllerManagerStates {
+  std::unique_ptr<ControllerManager> controller_manager;
+  std::vector<MockController*> mock_controllers;
+};
+
+ControllerManagerStates CreateControllerManager() {
+  ControllerManagerStates states;
+  std::vector<std::unique_ptr<Controller>> controllers;
+  for (size_t i = 0; i < kNumControllers; ++i) {
+    auto controller =
+        std::unique_ptr<MockController>(new NiceMock<MockController>());
+    EXPECT_CALL(*controller, Die());
+    states.mock_controllers.push_back(controller.get());
+    controllers.push_back(std::move(controller));
+  }
+  states.controller_manager.reset(new ControllerManagerImpl(
+      ControllerManagerImpl::Config(), std::move(controllers)));
+  return states;
+}
+
+}  // namespace
+
+TEST(ControllerManagerTest, GetControllersReturnAllControllers) {
+  ControllerManagerStates states = CreateControllerManager();
+
+  auto check = states.controller_manager->GetControllers();
+  // Verify that controllers in |check| are one-to-one mapped to those in
+  // |mock_controllers_|.
+  EXPECT_EQ(states.mock_controllers.size(), check.size());
+  for (auto& controller : check)
+    EXPECT_NE(states.mock_controllers.end(),
+              std::find(states.mock_controllers.begin(),
+                        states.mock_controllers.end(), controller));
+}
+
+TEST(ControllerManagerTest, ControllersInDefaultOrderOnEmptyNetworkMetrics) {
+  ControllerManagerStates states = CreateControllerManager();
+
+  // |network_metrics| are empty, and the controllers are supposed to follow the
+  // default order.
+  Controller::NetworkMetrics network_metrics;
+  auto check = states.controller_manager->GetSortedControllers(network_metrics);
+  EXPECT_EQ(states.mock_controllers.size(), check.size());
+  for (size_t i = 0; i < states.mock_controllers.size(); ++i)
+    EXPECT_EQ(states.mock_controllers[i], check[i]);
+}
+
+}  // namespace webrtc