Implement BluetoothLowEnergyWrapperFake for Bluetooth test fixture

device/bluetooth/bluetooth_low_energy_win_fake.h

 // 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.
 
 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_FAKE_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_FAKE_H_
 
 #include "device/bluetooth/bluetooth_low_energy_win.h"
 
+#include <set>
+#include <unordered_map>
+
 namespace device {
 namespace win {
 
+struct BLEDevice;
+struct BLEGattService;
+struct BLEGattCharacteristic;
+struct BLEGattDescriptor;
+
+// The key of BLEDevicesMap is the string of the BLE device address.
+typedef std::unordered_map<std::string, scoped_ptr<BLEDevice>> BLEDevicesMap;
+// The key of BLEGattServicesMap, BLEGattCharacteristicsMap and
+// BLEGattDescriptorsMap is the string of the attribute handle.
+typedef std::unordered_map<std::string, scoped_ptr<BLEGattService>>
+    BLEGattServicesMap;
+typedef std::unordered_map<std::string, scoped_ptr<BLEGattCharacteristic>>
+    BLEGattCharacteristicsMap;
+typedef std::unordered_map<std::string, scoped_ptr<BLEGattDescriptor>>
+    BLEGattDescriptorsMap;
+// The key of BLEAttributeHandleTable is the string of the BLE device address.
+typedef std::unordered_map<std::string, scoped_ptr<std::set<USHORT>>>
+    BLEAttributeHandleTable;
+
+struct BLEDevice {
+  scoped_ptr<BluetoothLowEnergyDeviceInfo> device_info;
+  BLEGattServicesMap primary_services;
+};
+
+struct BLEGattService {
+  scoped_ptr<BTH_LE_GATT_SERVICE> service_info;
+  BLEGattServicesMap included_services;
+  BLEGattCharacteristicsMap included_characteristics;
+};
+
+struct BLEGattCharacteristic {
+  scoped_ptr<BTH_LE_GATT_CHARACTERISTIC> characteristic_info;
+  scoped_ptr<BTH_LE_GATT_CHARACTERISTIC_VALUE> value;
+  BLEGattDescriptorsMap included_descriptors;
+};
+
+struct BLEGattDescriptor {
+  scoped_ptr<BTH_LE_GATT_DESCRIPTOR> descriptor_info;
+  scoped_ptr<BTH_LE_GATT_DESCRIPTOR_VALUE> value;
+};
+
 // Fake implementation of BluetoothLowEnergyWrapper. Used for BluetoothTestWin.
 class BluetoothLowEnergyWrapperFake : public BluetoothLowEnergyWrapper {
  public:
   BluetoothLowEnergyWrapperFake();
   ~BluetoothLowEnergyWrapperFake() override;
 
   bool EnumerateKnownBluetoothLowEnergyDevices(
       ScopedVector<BluetoothLowEnergyDeviceInfo>* devices,
       std::string* error) override;
   bool EnumerateKnownBluetoothLowEnergyGattServiceDevices(
       ScopedVector<BluetoothLowEnergyDeviceInfo>* devices,
       std::string* error) override;
   bool EnumerateKnownBluetoothLowEnergyServices(
       const base::FilePath& device_path,
       ScopedVector<BluetoothLowEnergyServiceInfo>* services,
       std::string* error) override;
+
+  BLEDevice* SimulateBLEDevice(std::string device_name,
+                               BLUETOOTH_ADDRESS device_address);
+  BLEGattService* SimulateBLEGattService(BLEDevice* device, std::string uuid);
+
+ private:
+  // Generate an unique attribute handle on |device_address|.
+  USHORT GenerateAUniqueAttributeHandle(std::string device_address);
+
+  // Generate device path for the BLE device with |device_address|.
+  base::string16 GenerateBLEDevicePath(std::string device_address);
+
+  // Generate GATT service device path of the service with
+  // |service_attribute_handle|. |resident_device_path| is the BLE device this
+  // GATT service belongs to.
+  base::string16 GenerateBLEGattServiceDevicePath(
+      base::string16 resident_device_path,
+      USHORT service_attribute_handle);
+
+  // Extract device address from the device |path| generated by
+  // GenerateBLEDevicePath or GenerateBLEGattServiceDevicePath.
+  base::string16 ExtractDeviceAddressFromDevicePath(base::string16 path);
+
+  // Extract service attribute handle from the |path| generated by
+  // GenerateBLEGattServiceDevicePath.
+  base::string16 ExtractServiceAttributeHandleFromDevicePath(
+      base::string16 path);
+
+  // The canonical BLE device address string format is the
+  // BluetoothDevice::CanonicalizeAddress.
+  std::string BluetoothAddressToCanonicalString(const BLUETOOTH_ADDRESS& btha);
+
+  // The canonical UUID string format is device::BluetoothUUID.value().
+  BTH_LE_UUID CanonicalStringToBTH_LE_UUID(std::string uuid);
+
+  // Table to store allocated attribute handle for a device.
+  BLEAttributeHandleTable attribute_handle_table_;
+  BLEDevicesMap simulated_devices_;
 };
 
 }  // namespace win
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_FAKE_H_