Add unit test for ArcBluetoothBridge and TypeConverter

components/arc/bluetooth/arc_bluetooth_bridge_unittest.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/arc/bluetooth/arc_bluetooth_bridge.h"
+
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "components/arc/bluetooth/bluetooth_type_converters.h"
+#include "components/arc/common/bluetooth.mojom.h"
+#include "components/arc/test/fake_arc_bridge_service.h"
+#include "components/arc/test/fake_bluetooth_instance.h"
+#include "device/bluetooth/dbus/bluez_dbus_manager.h"
+#include "device/bluetooth/dbus/fake_bluetooth_adapter_client.h"
+#include "device/bluetooth/dbus/fake_bluetooth_device_client.h"
+#include "device/bluetooth/dbus/fake_bluetooth_gatt_characteristic_client.h"
+#include "device/bluetooth/dbus/fake_bluetooth_gatt_descriptor_client.h"
+#include "device/bluetooth/dbus/fake_bluetooth_gatt_service_client.h"
+#include "mojo/public/cpp/bindings/array.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace arc {
+
+class ArcBluetoothBridgeTest : public testing::Test {
+ protected:
+  void AddTestDevice() {
+    bluez::BluezDBusManager* dbus_manager = bluez::BluezDBusManager::Get();
+    auto* fake_bluetooth_device_client =
+        static_cast<bluez::FakeBluetoothDeviceClient*>(
+            dbus_manager->GetBluetoothDeviceClient());
+    auto* fake_bluetooth_gatt_service_client =
+        static_cast<bluez::FakeBluetoothGattServiceClient*>(
+            dbus_manager->GetBluetoothGattServiceClient());
+    auto* fake_bluetooth_gatt_characteristic_client =
+        static_cast<bluez::FakeBluetoothGattCharacteristicClient*>(
+            dbus_manager->GetBluetoothGattCharacteristicClient());
+
+    fake_bluetooth_device_client->CreateDevice(
+        dbus::ObjectPath(bluez::FakeBluetoothAdapterClient::kAdapterPath),
+        dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kLowEnergyPath));
+    fake_bluetooth_gatt_service_client->ExposeHeartRateService(
+        dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kLowEnergyPath));
+    fake_bluetooth_gatt_characteristic_client->ExposeHeartRateCharacteristics(
+        fake_bluetooth_gatt_service_client->GetHeartRateServicePath());
+  }
+
+  std::unique_ptr<FakeArcBridgeService> fake_arc_bridge_service_;

[rkc, 2016/08/01 19:24:39]

Move to the bottom of the section, along with the other variable definitions.

[puthik_chromium, 2016/08/01 22:13:04]

Done.

+  std::unique_ptr<FakeBluetoothInstance> fake_bluetooth_instance_;
+  std::unique_ptr<ArcBluetoothBridge> arc_bluetooth_bridge_;
+  scoped_refptr<device::BluetoothAdapter> adapter_;
+
+  void OnAdapterInitialized(scoped_refptr<device::BluetoothAdapter> adapter) {
+    adapter_ = adapter;
+    get_adapter_run_loop_.Quit();
+  }
+
+  void SetUp() override {
+    std::unique_ptr<bluez::BluezDBusManagerSetter> dbus_setter =
+        bluez::BluezDBusManager::GetSetterForTesting();
+    auto fake_bluetooth_device_client =
+        base::MakeUnique<bluez::FakeBluetoothDeviceClient>();
+    fake_bluetooth_device_client->RemoveAllDevices();
+    dbus_setter->SetBluetoothDeviceClient(
+        std::move(fake_bluetooth_device_client));
+    dbus_setter->SetBluetoothGattServiceClient(
+        base::MakeUnique<bluez::FakeBluetoothGattServiceClient>());
+    dbus_setter->SetBluetoothGattCharacteristicClient(
+        base::MakeUnique<bluez::FakeBluetoothGattCharacteristicClient>());
+    dbus_setter->SetBluetoothGattDescriptorClient(
+        base::MakeUnique<bluez::FakeBluetoothGattDescriptorClient>());
+
+    fake_arc_bridge_service_.reset(new FakeArcBridgeService());
+    fake_bluetooth_instance_.reset(new FakeBluetoothInstance());
+    fake_arc_bridge_service_->bluetooth()->SetInstance(
+        fake_bluetooth_instance_.get(), 2);
+    arc_bluetooth_bridge_.reset(
+        new ArcBluetoothBridge(fake_arc_bridge_service_.get()));
+
+    device::BluetoothAdapterFactory::GetAdapter(base::Bind(
+        &ArcBluetoothBridgeTest::OnAdapterInitialized, base::Unretained(this)));
+    // We will quit the loop once we get the adapter.
+    get_adapter_run_loop_.Run();
+  }
+
+  base::MessageLoop message_loop_;
+  base::RunLoop get_adapter_run_loop_;
+};
+
+// When we add device to bluez::FakeBluetoothDeviceClient, ArcBluetoothBridge
+// should send new device data to Android. This test will then check
+// the correctness of the device properties sent via arc bridge.
+TEST_F(ArcBluetoothBridgeTest, DeviceFound) {
+  EXPECT_EQ(0u, fake_bluetooth_instance_->device_found_data().size());
+  AddTestDevice();
+  EXPECT_EQ(1u, fake_bluetooth_instance_->device_found_data().size());
+  const mojo::Array<mojom::BluetoothPropertyPtr>& prop =
+      fake_bluetooth_instance_->device_found_data().back();
+
+  EXPECT_EQ(7u, prop.size());
+  EXPECT_TRUE(prop[0]->is_bdname());
+  EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyName),
+            prop[0]->get_bdname());
+  EXPECT_TRUE(prop[1]->is_bdaddr());
+  EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress),
+            prop[1]->get_bdaddr()->To<std::string>());
+  EXPECT_TRUE(prop[2]->is_uuids());
+  EXPECT_EQ(1u, prop[2]->get_uuids().size());
+  EXPECT_EQ(bluez::FakeBluetoothGattServiceClient::kHeartRateServiceUUID,
+            prop[2]->get_uuids()[0].To<device::BluetoothUUID>().value());
+  EXPECT_TRUE(prop[3]->is_device_class());
+  EXPECT_EQ(bluez::FakeBluetoothDeviceClient::kLowEnergyClass,
+            prop[3]->get_device_class());
+  EXPECT_TRUE(prop[4]->is_device_type());
+  // bluez::FakeBluetoothDeviceClient does not return proper device type.
+  EXPECT_TRUE(prop[5]->is_remote_friendly_name());
+  EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyName),
+            prop[5]->get_remote_friendly_name());
+  EXPECT_TRUE(prop[6]->is_remote_rssi());
+}
+
+// Invoke OnDiscoveryStarted to send cached device to BT instance,
+// and check correctness of the Advertising data sent via arc bridge.
+TEST_F(ArcBluetoothBridgeTest, LEDeviceFound) {
+  EXPECT_EQ(0u, fake_bluetooth_instance_->device_found_data().size());
+  AddTestDevice();
+  EXPECT_EQ(1u, fake_bluetooth_instance_->le_device_found_data().size());
+
+  const mojom::BluetoothAddressPtr& addr =
+      fake_bluetooth_instance_->le_device_found_data().back()->addr();
+  const mojo::Array<mojom::BluetoothAdvertisingDataPtr>& adv_data =
+      fake_bluetooth_instance_->le_device_found_data().back()->adv_data();
+
+  EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress),
+            addr->To<std::string>());
+  EXPECT_EQ(1u, adv_data.size());
+
+  EXPECT_TRUE(adv_data[0]->is_local_name());
+  EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyName),
+            adv_data[0]->get_local_name().To<std::string>());
+}
+
+// Invoke GetGattDB and check correctness of the GattDB sent via arc bridge.
+TEST_F(ArcBluetoothBridgeTest, GetGattDB) {
+  AddTestDevice();
+
+  arc_bluetooth_bridge_->GetGattDB(mojom::BluetoothAddress::From(
+      std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress)));
+  EXPECT_EQ(1u, fake_bluetooth_instance_->gatt_db_result().size());
+
+  const mojom::BluetoothAddressPtr& addr =
+      fake_bluetooth_instance_->gatt_db_result().back()->remote_addr();
+  EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress),
+            addr->To<std::string>());
+
+  // HeartRateService in bluez::FakeBluetoothDeviceClient consists of
+  // Service: HeartRateService
+  //     Characteristic: HeartRateMeasurement
+  //         Descriptor: ClientCharacteristicConfiguration
+  //     Characteristic: BodySensorLocation
+  //     Characteristic: HeartRateControlPoint
+  const mojo::Array<mojom::BluetoothGattDBElementPtr>& db =
+      fake_bluetooth_instance_->gatt_db_result().back()->db();
+  EXPECT_EQ(5u, db.size());
+
+  EXPECT_EQ(device::BluetoothUUID(
+                bluez::FakeBluetoothGattServiceClient::kHeartRateServiceUUID),
+            db[0]->uuid.To<device::BluetoothUUID>());
+  EXPECT_EQ(mojom::BluetoothGattDBAttributeType::BTGATT_DB_PRIMARY_SERVICE,
+            db[0]->type);
+
+  EXPECT_EQ(device::BluetoothUUID(bluez::FakeBluetoothGattCharacteristicClient::
+                                      kHeartRateMeasurementUUID),
+            db[1]->uuid.To<device::BluetoothUUID>());
+  EXPECT_EQ(mojom::BluetoothGattDBAttributeType::BTGATT_DB_CHARACTERISTIC,
+            db[1]->type);
+  EXPECT_EQ(device::BluetoothGattCharacteristic::PROPERTY_NOTIFY,
+            db[1]->properties);
+
+  EXPECT_EQ(device::BluetoothUUID(bluez::FakeBluetoothGattDescriptorClient::
+                                      kClientCharacteristicConfigurationUUID),
+            db[2]->uuid.To<device::BluetoothUUID>());
+  EXPECT_EQ(mojom::BluetoothGattDBAttributeType::BTGATT_DB_DESCRIPTOR,
+            db[2]->type);
+
+  EXPECT_EQ(device::BluetoothUUID(bluez::FakeBluetoothGattCharacteristicClient::
+                                      kBodySensorLocationUUID),
+            db[3]->uuid.To<device::BluetoothUUID>());
+  EXPECT_EQ(mojom::BluetoothGattDBAttributeType::BTGATT_DB_CHARACTERISTIC,
+            db[3]->type);
+  EXPECT_EQ(device::BluetoothGattCharacteristic::PROPERTY_READ,
+            db[3]->properties);
+
+  EXPECT_EQ(device::BluetoothUUID(bluez::FakeBluetoothGattCharacteristicClient::
+                                      kHeartRateControlPointUUID),
+            db[4]->uuid.To<device::BluetoothUUID>());
+  EXPECT_EQ(mojom::BluetoothGattDBAttributeType::BTGATT_DB_CHARACTERISTIC,
+            db[4]->type);
+  EXPECT_EQ(device::BluetoothGattCharacteristic::PROPERTY_WRITE,
+            db[4]->properties);
+}
+
+}  // namespace arc