device/bluetooth/bluetooth_remote_gatt_service_unittest.cc - chromium/src - Git at Google

 // Copyright 2015 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 "base/run_loop.h"
 #include "build/build_config.h"
 #include "device/bluetooth/bluetooth_gatt_service.h"
 #include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
 #include "device/bluetooth/test/test_bluetooth_adapter_observer.h"
 #include "testing/gtest/include/gtest/gtest.h"

 #if defined(OS_ANDROID)
 #include "device/bluetooth/test/bluetooth_test_android.h"
 #elif defined(OS_MACOSX)
 #include "device/bluetooth/test/bluetooth_test_mac.h"
 #elif defined(OS_WIN)
 #include "device/bluetooth/test/bluetooth_test_win.h"
 #endif

 namespace device {

 #if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 class BluetoothRemoteGattServiceTest : public BluetoothTest {};
 #endif

 #if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 TEST_F(BluetoothRemoteGattServiceTest, GetIdentifier) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   InitWithFakeAdapter();
   StartLowEnergyDiscoverySession();
   // 2 devices to verify unique IDs across them.
   BluetoothDevice* device1 = SimulateLowEnergyDevice(3);
   BluetoothDevice* device2 = SimulateLowEnergyDevice(4);
   device1->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                 GetConnectErrorCallback(Call::NOT_EXPECTED));
   device2->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                 GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device1);
   SimulateGattConnection(device2);
   base::RunLoop().RunUntilIdle();

   // 2 duplicate UUIDs creating 2 service instances on each device.
   SimulateGattServicesDiscovered(
       device1, std::vector<std::string>(
                    {kTestUUIDGenericAccess, kTestUUIDGenericAccess}));
   SimulateGattServicesDiscovered(
       device2, std::vector<std::string>(
                    {kTestUUIDGenericAccess, kTestUUIDGenericAccess}));
   base::RunLoop().RunUntilIdle();
   BluetoothRemoteGattService* service1 = device1->GetGattServices()[0];
   BluetoothRemoteGattService* service2 = device1->GetGattServices()[1];
   BluetoothRemoteGattService* service3 = device2->GetGattServices()[0];
   BluetoothRemoteGattService* service4 = device2->GetGattServices()[1];

   // All IDs are unique, even though they have the same UUID.
   EXPECT_NE(service1->GetIdentifier(), service2->GetIdentifier());
   EXPECT_NE(service1->GetIdentifier(), service3->GetIdentifier());
   EXPECT_NE(service1->GetIdentifier(), service4->GetIdentifier());

   EXPECT_NE(service2->GetIdentifier(), service3->GetIdentifier());
   EXPECT_NE(service2->GetIdentifier(), service4->GetIdentifier());

   EXPECT_NE(service3->GetIdentifier(), service4->GetIdentifier());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)

 #if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 TEST_F(BluetoothRemoteGattServiceTest, GetUUID) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   InitWithFakeAdapter();
   StartLowEnergyDiscoverySession();
   BluetoothDevice* device = SimulateLowEnergyDevice(3);
   device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
   base::RunLoop().RunUntilIdle();

   // Create multiple instances with the same UUID.
   BluetoothUUID uuid(kTestUUIDGenericAccess);
   std::vector<std::string> services;
   services.push_back(uuid.canonical_value());
   services.push_back(uuid.canonical_value());
   SimulateGattServicesDiscovered(device, services);
   base::RunLoop().RunUntilIdle();

   // Each has the same UUID.
   EXPECT_EQ(uuid, device->GetGattServices()[0]->GetUUID());
   EXPECT_EQ(uuid, device->GetGattServices()[1]->GetUUID());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)

 #if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 TEST_F(BluetoothRemoteGattServiceTest, GetCharacteristics_FindNone) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   InitWithFakeAdapter();
   StartLowEnergyDiscoverySession();
   BluetoothDevice* device = SimulateLowEnergyDevice(3);
   device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
   base::RunLoop().RunUntilIdle();

   // Simulate a service, with no Characteristics:
   SimulateGattServicesDiscovered(
       device, std::vector<std::string>({kTestUUIDGenericAccess}));
   base::RunLoop().RunUntilIdle();
   BluetoothRemoteGattService* service = device->GetGattServices()[0];

   EXPECT_EQ(0u, service->GetCharacteristics().size());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)

 #if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 TEST_F(BluetoothRemoteGattServiceTest,
        GetCharacteristics_and_GetCharacteristic) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   InitWithFakeAdapter();
   StartLowEnergyDiscoverySession();
   BluetoothDevice* device = SimulateLowEnergyDevice(3);
   device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
   base::RunLoop().RunUntilIdle();

   // Simulate a service, with several Characteristics:
   SimulateGattServicesDiscovered(
       device, std::vector<std::string>({kTestUUIDGenericAccess}));
   base::RunLoop().RunUntilIdle();
   BluetoothRemoteGattService* service = device->GetGattServices()[0];
   SimulateGattCharacteristic(service, kTestUUIDDeviceName, /* properties */ 0);
   SimulateGattCharacteristic(service, kTestUUIDAppearance,
                              /* properties */ 0);
   // Duplicate UUID.
   SimulateGattCharacteristic(service, kTestUUIDAppearance,
                              /* properties */ 0);
   SimulateGattCharacteristic(service, kTestUUIDReconnectionAddress,
                              /* properties */ 0);

   // Verify that GetCharacteristic can retrieve characteristics again by ID,
   // and that the same Characteristics come back.
   EXPECT_EQ(4u, service->GetCharacteristics().size());
   std::string char_id1 = service->GetCharacteristics()[0]->GetIdentifier();
   std::string char_id2 = service->GetCharacteristics()[1]->GetIdentifier();
   std::string char_id3 = service->GetCharacteristics()[2]->GetIdentifier();
   std::string char_id4 = service->GetCharacteristics()[3]->GetIdentifier();
   BluetoothUUID char_uuid1 = service->GetCharacteristics()[0]->GetUUID();
   BluetoothUUID char_uuid2 = service->GetCharacteristics()[1]->GetUUID();
   BluetoothUUID char_uuid3 = service->GetCharacteristics()[2]->GetUUID();
   BluetoothUUID char_uuid4 = service->GetCharacteristics()[3]->GetUUID();
   EXPECT_EQ(char_uuid1, service->GetCharacteristic(char_id1)->GetUUID());
   EXPECT_EQ(char_uuid2, service->GetCharacteristic(char_id2)->GetUUID());
   EXPECT_EQ(char_uuid3, service->GetCharacteristic(char_id3)->GetUUID());
   EXPECT_EQ(char_uuid4, service->GetCharacteristic(char_id4)->GetUUID());

   // GetCharacteristics & GetCharacteristic return the same object for the same
   // ID:
   EXPECT_EQ(service->GetCharacteristics()[0],
             service->GetCharacteristic(char_id1));
   EXPECT_EQ(service->GetCharacteristic(char_id1),
             service->GetCharacteristic(char_id1));
 }

 TEST_F(BluetoothRemoteGattServiceTest, GetCharacteristicsByUUID) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   InitWithFakeAdapter();
   StartLowEnergyDiscoverySession();
   BluetoothDevice* device = SimulateLowEnergyDevice(3);
   device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
   base::RunLoop().RunUntilIdle();

   // Simulate two primary GATT services.
   SimulateGattServicesDiscovered(
       device,
       std::vector<std::string>({kTestUUIDGenericAccess, kTestUUIDHeartRate}));
   base::RunLoop().RunUntilIdle();
   BluetoothRemoteGattService* service1 = device->GetGattServices()[0];
   BluetoothRemoteGattService* service2 = device->GetGattServices()[1];
   SimulateGattCharacteristic(service1, kTestUUIDDeviceName,
                              /* properties */ 0);
   // 2 duplicate UUIDs creating 2 instances.
   SimulateGattCharacteristic(service2, kTestUUIDHeartRateMeasurement,
                              /* properties */ 0);
   SimulateGattCharacteristic(service2, kTestUUIDHeartRateMeasurement,
                              /* properties */ 0);

   {
     std::vector<BluetoothRemoteGattCharacteristic*> characteristics =
         service1->GetCharacteristicsByUUID(BluetoothUUID(kTestUUIDDeviceName));
     EXPECT_EQ(1u, characteristics.size());
     EXPECT_EQ(kTestUUIDDeviceName,
               characteristics[0]->GetUUID().canonical_value());
   }

   {
     std::vector<BluetoothRemoteGattCharacteristic*> characteristics =
         service2->GetCharacteristicsByUUID(
             BluetoothUUID(kTestUUIDHeartRateMeasurement));
     EXPECT_EQ(2u, characteristics.size());
     EXPECT_EQ(kTestUUIDHeartRateMeasurement,
               characteristics[0]->GetUUID().canonical_value());
     EXPECT_EQ(kTestUUIDHeartRateMeasurement,
               characteristics[1]->GetUUID().canonical_value());
     EXPECT_NE(characteristics[0]->GetIdentifier(),
               characteristics[1]->GetIdentifier());
   }

   BluetoothUUID characteristic_uuid_not_exist_in_setup(
       "33333333-0000-1000-8000-00805f9b34fb");
   EXPECT_TRUE(
       service1->GetCharacteristicsByUUID(characteristic_uuid_not_exist_in_setup)
           .empty());
   EXPECT_TRUE(
       service2->GetCharacteristicsByUUID(characteristic_uuid_not_exist_in_setup)
           .empty());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)

 #if defined(OS_MACOSX) || defined(OS_WIN)
 TEST_F(BluetoothRemoteGattServiceTest, GattCharacteristics_ObserversCalls) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   InitWithFakeAdapter();
   StartLowEnergyDiscoverySession();
   BluetoothDevice* device = SimulateLowEnergyDevice(3);
   device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
   base::RunLoop().RunUntilIdle();

   TestBluetoothAdapterObserver observer(adapter_);

   // Simulate a service, with several Characteristics:
   SimulateGattServicesDiscovered(
       device, std::vector<std::string>({kTestUUIDGenericAccess}));
   base::RunLoop().RunUntilIdle();
   BluetoothRemoteGattService* service = device->GetGattServices()[0];
   SimulateGattCharacteristic(service, kTestUUIDDeviceName, /* properties */ 0);
   SimulateGattCharacteristic(service, kTestUUIDAppearance,
                              /* properties */ 0);
   // Duplicate UUID.
   SimulateGattCharacteristic(service, kTestUUIDAppearance,
                              /* properties */ 0);
   SimulateGattCharacteristic(service, kTestUUIDReconnectionAddress,
                              /* properties */ 0);
 #if !defined(OS_WIN)
   // TODO(620895) GattCharacteristicAdded has to be implemented for Windows.
   EXPECT_EQ(4, observer.gatt_characteristic_added_count());
 #endif  // !defined(OS_WIN)

   // Simulate remove of characteristics one by one.
   EXPECT_EQ(4u, service->GetCharacteristics().size());
   std::string removed_char = service->GetCharacteristics()[0]->GetIdentifier();
   SimulateGattCharacteristicRemoved(service,
                                     service->GetCharacteristic(removed_char));
   EXPECT_EQ(1, observer.gatt_characteristic_removed_count());
   EXPECT_FALSE(service->GetCharacteristic(removed_char));
   EXPECT_EQ(3u, service->GetCharacteristics().size());
   removed_char = service->GetCharacteristics()[0]->GetIdentifier();
   SimulateGattCharacteristicRemoved(service,
                                     service->GetCharacteristic(removed_char));
   EXPECT_EQ(2, observer.gatt_characteristic_removed_count());
   EXPECT_FALSE(service->GetCharacteristic(removed_char));
   EXPECT_EQ(2u, service->GetCharacteristics().size());
   removed_char = service->GetCharacteristics()[0]->GetIdentifier();
   SimulateGattCharacteristicRemoved(service,
                                     service->GetCharacteristic(removed_char));
   EXPECT_EQ(3, observer.gatt_characteristic_removed_count());
   EXPECT_FALSE(service->GetCharacteristic(removed_char));
   EXPECT_EQ(1u, service->GetCharacteristics().size());
   removed_char = service->GetCharacteristics()[0]->GetIdentifier();
   SimulateGattCharacteristicRemoved(service,
                                     service->GetCharacteristic(removed_char));
   EXPECT_EQ(4, observer.gatt_characteristic_removed_count());
   EXPECT_FALSE(service->GetCharacteristic(removed_char));
   EXPECT_EQ(0u, service->GetCharacteristics().size());

 #if defined(OS_MACOSX)
   // SimulateGattServicesDiscovered
   // 4 * SimulateGattCharacteristic
   // 4 * SimulateGattCharacteristicRemoved
   EXPECT_EQ(9, observer.gatt_service_changed_count());
 #else  // defined(OS_MACOSX)
   EXPECT_EQ(4, observer.gatt_service_changed_count());
 #endif  // defined(OS_MACOSX)
 }
 #endif  //  defined(OS_MACOSX) || defined(OS_WIN)

 #if defined(OS_WIN) || defined(OS_MACOSX)
 TEST_F(BluetoothRemoteGattServiceTest, SimulateGattServiceRemove) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   InitWithFakeAdapter();
   StartLowEnergyDiscoverySession();
   BluetoothDevice* device = SimulateLowEnergyDevice(3);
   device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
   base::RunLoop().RunUntilIdle();

   TestBluetoothAdapterObserver observer(adapter_);

   // Simulate two primary GATT services.
   SimulateGattServicesDiscovered(
       device,
       std::vector<std::string>({kTestUUIDGenericAccess, kTestUUIDHeartRate}));
   EXPECT_EQ(2u, device->GetGattServices().size());

   // Simulate remove of a primary service.
   BluetoothRemoteGattService* service1 = device->GetGattServices()[0];
   BluetoothRemoteGattService* service2 = device->GetGattServices()[1];
   std::string removed_service = service1->GetIdentifier();
   SimulateGattServiceRemoved(device->GetGattService(removed_service));
   EXPECT_EQ(1, observer.gatt_service_removed_count());
   EXPECT_EQ(1u, device->GetGattServices().size());
   EXPECT_FALSE(device->GetGattService(removed_service));
   EXPECT_EQ(device->GetGattServices()[0], service2);
 }
 #endif  // defined(OS_WIN) || defined(OS_MACOSX)

 }  // namespace device
	// Copyright 2015 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 "base/run_loop.h"
	#include "build/build_config.h"
	#include "device/bluetooth/bluetooth_gatt_service.h"
	#include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
	#include "device/bluetooth/test/test_bluetooth_adapter_observer.h"
	#include "testing/gtest/include/gtest/gtest.h"

	#if defined(OS_ANDROID)
	#include "device/bluetooth/test/bluetooth_test_android.h"
	#elif defined(OS_MACOSX)
	#include "device/bluetooth/test/bluetooth_test_mac.h"
	#elif defined(OS_WIN)
	#include "device/bluetooth/test/bluetooth_test_win.h"
	#endif

	namespace device {

	#if defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)
	class BluetoothRemoteGattServiceTest : public BluetoothTest {};
	#endif

	#if defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)
	TEST_F(BluetoothRemoteGattServiceTest, GetIdentifier) {
	if (!PlatformSupportsLowEnergy()) {
	LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
	return;
	}
	InitWithFakeAdapter();
	StartLowEnergyDiscoverySession();
	// 2 devices to verify unique IDs across them.
	BluetoothDevice* device1 = SimulateLowEnergyDevice(3);
	BluetoothDevice* device2 = SimulateLowEnergyDevice(4);
	device1->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	device2->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	SimulateGattConnection(device1);
	SimulateGattConnection(device2);
	base::RunLoop().RunUntilIdle();

	// 2 duplicate UUIDs creating 2 service instances on each device.
	SimulateGattServicesDiscovered(
	device1, std::vector<std::string>(
	{kTestUUIDGenericAccess, kTestUUIDGenericAccess}));
	SimulateGattServicesDiscovered(
	device2, std::vector<std::string>(
	{kTestUUIDGenericAccess, kTestUUIDGenericAccess}));
	base::RunLoop().RunUntilIdle();
	BluetoothRemoteGattService* service1 = device1->GetGattServices()[0];
	BluetoothRemoteGattService* service2 = device1->GetGattServices()[1];
	BluetoothRemoteGattService* service3 = device2->GetGattServices()[0];
	BluetoothRemoteGattService* service4 = device2->GetGattServices()[1];

	// All IDs are unique, even though they have the same UUID.
	EXPECT_NE(service1->GetIdentifier(), service2->GetIdentifier());
	EXPECT_NE(service1->GetIdentifier(), service3->GetIdentifier());
	EXPECT_NE(service1->GetIdentifier(), service4->GetIdentifier());

	EXPECT_NE(service2->GetIdentifier(), service3->GetIdentifier());
	EXPECT_NE(service2->GetIdentifier(), service4->GetIdentifier());

	EXPECT_NE(service3->GetIdentifier(), service4->GetIdentifier());
	}
	#endif // defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)

	#if defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)
	TEST_F(BluetoothRemoteGattServiceTest, GetUUID) {
	if (!PlatformSupportsLowEnergy()) {
	LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
	return;
	}
	InitWithFakeAdapter();
	StartLowEnergyDiscoverySession();
	BluetoothDevice* device = SimulateLowEnergyDevice(3);
	device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	SimulateGattConnection(device);
	base::RunLoop().RunUntilIdle();

	// Create multiple instances with the same UUID.
	BluetoothUUID uuid(kTestUUIDGenericAccess);
	std::vector<std::string> services;
	services.push_back(uuid.canonical_value());
	services.push_back(uuid.canonical_value());
	SimulateGattServicesDiscovered(device, services);
	base::RunLoop().RunUntilIdle();

	// Each has the same UUID.
	EXPECT_EQ(uuid, device->GetGattServices()[0]->GetUUID());
	EXPECT_EQ(uuid, device->GetGattServices()[1]->GetUUID());
	}
	#endif // defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)

	#if defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)
	TEST_F(BluetoothRemoteGattServiceTest, GetCharacteristics_FindNone) {
	if (!PlatformSupportsLowEnergy()) {
	LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
	return;
	}
	InitWithFakeAdapter();
	StartLowEnergyDiscoverySession();
	BluetoothDevice* device = SimulateLowEnergyDevice(3);
	device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	SimulateGattConnection(device);
	base::RunLoop().RunUntilIdle();

	// Simulate a service, with no Characteristics:
	SimulateGattServicesDiscovered(
	device, std::vector<std::string>({kTestUUIDGenericAccess}));
	base::RunLoop().RunUntilIdle();
	BluetoothRemoteGattService* service = device->GetGattServices()[0];

	EXPECT_EQ(0u, service->GetCharacteristics().size());
	}
	#endif // defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)

	#if defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)
	TEST_F(BluetoothRemoteGattServiceTest,
	GetCharacteristics_and_GetCharacteristic) {
	if (!PlatformSupportsLowEnergy()) {
	LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
	return;
	}
	InitWithFakeAdapter();
	StartLowEnergyDiscoverySession();
	BluetoothDevice* device = SimulateLowEnergyDevice(3);
	device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	SimulateGattConnection(device);
	base::RunLoop().RunUntilIdle();

	// Simulate a service, with several Characteristics:
	SimulateGattServicesDiscovered(
	device, std::vector<std::string>({kTestUUIDGenericAccess}));
	base::RunLoop().RunUntilIdle();
	BluetoothRemoteGattService* service = device->GetGattServices()[0];
	SimulateGattCharacteristic(service, kTestUUIDDeviceName, /* properties */ 0);
	SimulateGattCharacteristic(service, kTestUUIDAppearance,
	/* properties */ 0);
	// Duplicate UUID.
	SimulateGattCharacteristic(service, kTestUUIDAppearance,
	/* properties */ 0);
	SimulateGattCharacteristic(service, kTestUUIDReconnectionAddress,
	/* properties */ 0);

	// Verify that GetCharacteristic can retrieve characteristics again by ID,
	// and that the same Characteristics come back.
	EXPECT_EQ(4u, service->GetCharacteristics().size());
	std::string char_id1 = service->GetCharacteristics()[0]->GetIdentifier();
	std::string char_id2 = service->GetCharacteristics()[1]->GetIdentifier();
	std::string char_id3 = service->GetCharacteristics()[2]->GetIdentifier();
	std::string char_id4 = service->GetCharacteristics()[3]->GetIdentifier();
	BluetoothUUID char_uuid1 = service->GetCharacteristics()[0]->GetUUID();
	BluetoothUUID char_uuid2 = service->GetCharacteristics()[1]->GetUUID();
	BluetoothUUID char_uuid3 = service->GetCharacteristics()[2]->GetUUID();
	BluetoothUUID char_uuid4 = service->GetCharacteristics()[3]->GetUUID();
	EXPECT_EQ(char_uuid1, service->GetCharacteristic(char_id1)->GetUUID());
	EXPECT_EQ(char_uuid2, service->GetCharacteristic(char_id2)->GetUUID());
	EXPECT_EQ(char_uuid3, service->GetCharacteristic(char_id3)->GetUUID());
	EXPECT_EQ(char_uuid4, service->GetCharacteristic(char_id4)->GetUUID());

	// GetCharacteristics & GetCharacteristic return the same object for the same
	// ID:
	EXPECT_EQ(service->GetCharacteristics()[0],
	service->GetCharacteristic(char_id1));
	EXPECT_EQ(service->GetCharacteristic(char_id1),
	service->GetCharacteristic(char_id1));
	}

	TEST_F(BluetoothRemoteGattServiceTest, GetCharacteristicsByUUID) {
	if (!PlatformSupportsLowEnergy()) {
	LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
	return;
	}
	InitWithFakeAdapter();
	StartLowEnergyDiscoverySession();
	BluetoothDevice* device = SimulateLowEnergyDevice(3);
	device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	SimulateGattConnection(device);
	base::RunLoop().RunUntilIdle();

	// Simulate two primary GATT services.
	SimulateGattServicesDiscovered(
	device,
	std::vector<std::string>({kTestUUIDGenericAccess, kTestUUIDHeartRate}));
	base::RunLoop().RunUntilIdle();
	BluetoothRemoteGattService* service1 = device->GetGattServices()[0];
	BluetoothRemoteGattService* service2 = device->GetGattServices()[1];
	SimulateGattCharacteristic(service1, kTestUUIDDeviceName,
	/* properties */ 0);
	// 2 duplicate UUIDs creating 2 instances.
	SimulateGattCharacteristic(service2, kTestUUIDHeartRateMeasurement,
	/* properties */ 0);
	SimulateGattCharacteristic(service2, kTestUUIDHeartRateMeasurement,
	/* properties */ 0);

	{
	std::vector<BluetoothRemoteGattCharacteristic*> characteristics =
	service1->GetCharacteristicsByUUID(BluetoothUUID(kTestUUIDDeviceName));
	EXPECT_EQ(1u, characteristics.size());
	EXPECT_EQ(kTestUUIDDeviceName,
	characteristics[0]->GetUUID().canonical_value());
	}

	{
	std::vector<BluetoothRemoteGattCharacteristic*> characteristics =
	service2->GetCharacteristicsByUUID(
	BluetoothUUID(kTestUUIDHeartRateMeasurement));
	EXPECT_EQ(2u, characteristics.size());
	EXPECT_EQ(kTestUUIDHeartRateMeasurement,
	characteristics[0]->GetUUID().canonical_value());
	EXPECT_EQ(kTestUUIDHeartRateMeasurement,
	characteristics[1]->GetUUID().canonical_value());
	EXPECT_NE(characteristics[0]->GetIdentifier(),
	characteristics[1]->GetIdentifier());
	}

	BluetoothUUID characteristic_uuid_not_exist_in_setup(
	"33333333-0000-1000-8000-00805f9b34fb");
	EXPECT_TRUE(
	service1->GetCharacteristicsByUUID(characteristic_uuid_not_exist_in_setup)
	.empty());
	EXPECT_TRUE(
	service2->GetCharacteristicsByUUID(characteristic_uuid_not_exist_in_setup)
	.empty());
	}
	#endif // defined(OS_ANDROID) \|\| defined(OS_MACOSX) \|\| defined(OS_WIN)

	#if defined(OS_MACOSX) \|\| defined(OS_WIN)
	TEST_F(BluetoothRemoteGattServiceTest, GattCharacteristics_ObserversCalls) {
	if (!PlatformSupportsLowEnergy()) {
	LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
	return;
	}
	InitWithFakeAdapter();
	StartLowEnergyDiscoverySession();
	BluetoothDevice* device = SimulateLowEnergyDevice(3);
	device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	SimulateGattConnection(device);
	base::RunLoop().RunUntilIdle();

	TestBluetoothAdapterObserver observer(adapter_);

	// Simulate a service, with several Characteristics:
	SimulateGattServicesDiscovered(
	device, std::vector<std::string>({kTestUUIDGenericAccess}));
	base::RunLoop().RunUntilIdle();
	BluetoothRemoteGattService* service = device->GetGattServices()[0];
	SimulateGattCharacteristic(service, kTestUUIDDeviceName, /* properties */ 0);
	SimulateGattCharacteristic(service, kTestUUIDAppearance,
	/* properties */ 0);
	// Duplicate UUID.
	SimulateGattCharacteristic(service, kTestUUIDAppearance,
	/* properties */ 0);
	SimulateGattCharacteristic(service, kTestUUIDReconnectionAddress,
	/* properties */ 0);
	#if !defined(OS_WIN)
	// TODO(620895) GattCharacteristicAdded has to be implemented for Windows.
	EXPECT_EQ(4, observer.gatt_characteristic_added_count());
	#endif // !defined(OS_WIN)

	// Simulate remove of characteristics one by one.
	EXPECT_EQ(4u, service->GetCharacteristics().size());
	std::string removed_char = service->GetCharacteristics()[0]->GetIdentifier();
	SimulateGattCharacteristicRemoved(service,
	service->GetCharacteristic(removed_char));
	EXPECT_EQ(1, observer.gatt_characteristic_removed_count());
	EXPECT_FALSE(service->GetCharacteristic(removed_char));
	EXPECT_EQ(3u, service->GetCharacteristics().size());
	removed_char = service->GetCharacteristics()[0]->GetIdentifier();
	SimulateGattCharacteristicRemoved(service,
	service->GetCharacteristic(removed_char));
	EXPECT_EQ(2, observer.gatt_characteristic_removed_count());
	EXPECT_FALSE(service->GetCharacteristic(removed_char));
	EXPECT_EQ(2u, service->GetCharacteristics().size());
	removed_char = service->GetCharacteristics()[0]->GetIdentifier();
	SimulateGattCharacteristicRemoved(service,
	service->GetCharacteristic(removed_char));
	EXPECT_EQ(3, observer.gatt_characteristic_removed_count());
	EXPECT_FALSE(service->GetCharacteristic(removed_char));
	EXPECT_EQ(1u, service->GetCharacteristics().size());
	removed_char = service->GetCharacteristics()[0]->GetIdentifier();
	SimulateGattCharacteristicRemoved(service,
	service->GetCharacteristic(removed_char));
	EXPECT_EQ(4, observer.gatt_characteristic_removed_count());
	EXPECT_FALSE(service->GetCharacteristic(removed_char));
	EXPECT_EQ(0u, service->GetCharacteristics().size());

	#if defined(OS_MACOSX)
	// SimulateGattServicesDiscovered
	// 4 * SimulateGattCharacteristic
	// 4 * SimulateGattCharacteristicRemoved
	EXPECT_EQ(9, observer.gatt_service_changed_count());
	#else // defined(OS_MACOSX)
	EXPECT_EQ(4, observer.gatt_service_changed_count());
	#endif // defined(OS_MACOSX)
	}
	#endif // defined(OS_MACOSX) \|\| defined(OS_WIN)

	#if defined(OS_WIN) \|\| defined(OS_MACOSX)
	TEST_F(BluetoothRemoteGattServiceTest, SimulateGattServiceRemove) {
	if (!PlatformSupportsLowEnergy()) {
	LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
	return;
	}
	InitWithFakeAdapter();
	StartLowEnergyDiscoverySession();
	BluetoothDevice* device = SimulateLowEnergyDevice(3);
	device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
	GetConnectErrorCallback(Call::NOT_EXPECTED));
	SimulateGattConnection(device);
	base::RunLoop().RunUntilIdle();

	TestBluetoothAdapterObserver observer(adapter_);

	// Simulate two primary GATT services.
	SimulateGattServicesDiscovered(
	device,
	std::vector<std::string>({kTestUUIDGenericAccess, kTestUUIDHeartRate}));
	EXPECT_EQ(2u, device->GetGattServices().size());

	// Simulate remove of a primary service.
	BluetoothRemoteGattService* service1 = device->GetGattServices()[0];
	BluetoothRemoteGattService* service2 = device->GetGattServices()[1];
	std::string removed_service = service1->GetIdentifier();
	SimulateGattServiceRemoved(device->GetGattService(removed_service));
	EXPECT_EQ(1, observer.gatt_service_removed_count());
	EXPECT_EQ(1u, device->GetGattServices().size());
	EXPECT_FALSE(device->GetGattService(removed_service));
	EXPECT_EQ(device->GetGattServices()[0], service2);
	}
	#endif // defined(OS_WIN) \|\| defined(OS_MACOSX)

	} // namespace device