bluetooth: android: Implement Characteristic GetIdentifier, fix Service IDs too.

device/bluetooth/bluetooth_gatt_characteristic_unittest.cc

+// 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 "device/bluetooth/bluetooth_gatt_service.h"
+
+#include "device/bluetooth/bluetooth_remote_gatt_characteristic_android.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"
+#endif
+
+namespace device {
+
+#if defined(OS_ANDROID) || defined(OS_MACOSX)
+class BluetoothGattCharacteristicTest : public BluetoothTest {};
+#endif
+
+#if defined(OS_ANDROID)
+TEST_F(BluetoothGattCharacteristicTest, GetIdentifier) {
+  InitWithFakeAdapter();
+  StartLowEnergyDiscoverySession();
+  // 2 devices to verify unique IDs across them.
+  BluetoothDevice* device1 = DiscoverLowEnergyDevice(3);
+  BluetoothDevice* device2 = DiscoverLowEnergyDevice(4);
+  device1->CreateGattConnection(GetGattConnectionCallback(),
+                                GetConnectErrorCallback());
+  device2->CreateGattConnection(GetGattConnectionCallback(),
+                                GetConnectErrorCallback());
+  SimulateGattConnection(device1);
+  SimulateGattConnection(device2);
+
+  // 3 services (all with same UUID).
+  //   1 on the first device (to test characteristic instances across devices).
+  //   2 on the second device (to test same device, multiple service instances).
+  std::vector<std::string> services;
+  std::string uuid = "00000000-0000-1000-8000-00805f9b34fb";
+  services.push_back(uuid);
+  SimulateGattServicesDiscovered(device1, services);
+  services.push_back(uuid);
+  SimulateGattServicesDiscovered(device2, services);
+  BluetoothGattService* service1 = device1->GetGattServices()[0];
+  BluetoothGattService* service2 = device2->GetGattServices()[0];
+  BluetoothGattService* service3 = device2->GetGattServices()[1];
+  // 6 characteristics (same UUID), 2 on each service.
+  SimulateGattCharacteristic(service1, uuid);
+  SimulateGattCharacteristic(service1, uuid);
+  SimulateGattCharacteristic(service2, uuid);
+  SimulateGattCharacteristic(service2, uuid);
+  SimulateGattCharacteristic(service3, uuid);
+  SimulateGattCharacteristic(service3, uuid);
+  BluetoothGattCharacteristic* char1 = service1->GetCharacteristics()[0];
+  BluetoothGattCharacteristic* char2 = service1->GetCharacteristics()[1];
+  BluetoothGattCharacteristic* char3 = service2->GetCharacteristics()[0];
+  BluetoothGattCharacteristic* char4 = service2->GetCharacteristics()[1];
+  BluetoothGattCharacteristic* char5 = service3->GetCharacteristics()[0];
+  BluetoothGattCharacteristic* char6 = service3->GetCharacteristics()[1];
+
+  // All IDs are unique, even though they have the same UUID.
+  EXPECT_NE(char1->GetIdentifier(), char2->GetIdentifier());
+  EXPECT_NE(char1->GetIdentifier(), char3->GetIdentifier());
+  EXPECT_NE(char1->GetIdentifier(), char4->GetIdentifier());
+  EXPECT_NE(char1->GetIdentifier(), char5->GetIdentifier());
+  EXPECT_NE(char1->GetIdentifier(), char6->GetIdentifier());
+
+  EXPECT_NE(char2->GetIdentifier(), char3->GetIdentifier());
+  EXPECT_NE(char2->GetIdentifier(), char4->GetIdentifier());
+  EXPECT_NE(char2->GetIdentifier(), char5->GetIdentifier());
+  EXPECT_NE(char2->GetIdentifier(), char6->GetIdentifier());
+
+  EXPECT_NE(char3->GetIdentifier(), char4->GetIdentifier());
+  EXPECT_NE(char3->GetIdentifier(), char5->GetIdentifier());
+  EXPECT_NE(char3->GetIdentifier(), char6->GetIdentifier());
+
+  EXPECT_NE(char4->GetIdentifier(), char5->GetIdentifier());
+  EXPECT_NE(char4->GetIdentifier(), char6->GetIdentifier());
+
+  EXPECT_NE(char5->GetIdentifier(), char6->GetIdentifier());
+}
+#endif  // defined(OS_ANDROID)
+
+}  // namespace device