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..541e80f7d6f30ed6a579dbe93c469558720f8f8c
--- /dev/null
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/controller_manager_unittest.cc
@@ -0,0 +1,67 @@
+/*
+ *  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;
+}  // namespace
+
+class ControllerManagerTest : public ::testing::Test {
+ protected:
+  ControllerManagerTest() : controller_manager_(nullptr) {}
+
+  void SetUp() override {
+    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());
+      mock_controllers_.push_back(controller.get());
+      controllers.push_back(std::move(controller));
+    }
+    controller_manager_.reset(new ControllerManager(ControllerManager::Config(),
+                                                    std::move(controllers)));
+  }
+
+  std::unique_ptr<ControllerManager> controller_manager_;
+  std::vector<MockController*> mock_controllers_;
+};

[kwiberg-webrtc, 2016/09/09 11:56:15]

Again, this test fixture should probably be a free function that returns a
struct with the stuff it creates.

[minyue-webrtc, 2016/09/12 11:36:11]

Done.

+
+TEST_F(ControllerManagerTest, GetControllersReturnAllControllers) {
+  auto check = controller_manager_->GetControllers();
+  // Verify that controllers in |check| are one-to-one mapped to those in
+  // |controllers_|.

[kwiberg-webrtc, 2016/09/09 11:56:15]

|mock_controllers_|
?

[minyue-webrtc, 2016/09/12 11:36:11]

nice pick. thanks, 

+  EXPECT_EQ(mock_controllers_.size(), check.size());
+  for (auto& controller : check)
+    EXPECT_NE(mock_controllers_.end(),
+              std::find(mock_controllers_.begin(), mock_controllers_.end(),
+                        controller));
+}
+
+TEST_F(ControllerManagerTest, ControllersInDefaultOrderOnEmptyNetworkMetrics) {
+  // |network_metrics| are empty, and the controllers are supposed to follow the
+  // default order.
+  Controller::NetworkMetrics network_metrics;
+  auto check = controller_manager_->GetSortedControllers(network_metrics);
+  EXPECT_EQ(mock_controllers_.size(), check.size());
+  for (size_t i = 0; i < mock_controllers_.size(); ++i)
+    EXPECT_EQ(mock_controllers_[i], check[i]);
+}
+
+}  // namespace webrtc