Bluetooth: Mac: implementation for start notification

device/bluetooth/test/bluetooth_test_mac.mm

Index: device/bluetooth/test/bluetooth_test_mac.mm
diff --git a/device/bluetooth/test/bluetooth_test_mac.mm b/device/bluetooth/test/bluetooth_test_mac.mm
index 048810664eb089ec0a48671f8a9bd36691a6a904..27717f2a8178cca99ec74aa8cdec7965447d7b61 100644
--- a/device/bluetooth/test/bluetooth_test_mac.mm
+++ b/device/bluetooth/test/bluetooth_test_mac.mm
@@ -325,6 +325,32 @@ void BluetoothTestMac::SimulateGattCharacteristicWriteError(
   [characteristic_mock simulateWriteWithError:error];
 }
 
+void BluetoothTestMac::SimulateGattNotifySessionStarted(
+    BluetoothRemoteGattCharacteristic* characteristic) {
+  MockCBCharacteristic* characteristic_mock =
+      GetCBMockCharacteristic(characteristic);
+  [characteristic_mock simulateGattNotifySessionStarted];
+}
+
+void BluetoothTestMac::SimulateGattNotifySessionStartError(
+    BluetoothRemoteGattCharacteristic* characteristic,
+    BluetoothRemoteGattService::GattErrorCode error_code) {
+  MockCBCharacteristic* characteristic_mock =
+      GetCBMockCharacteristic(characteristic);
+  NSError* error = BluetoothDeviceMac::GetNSErrorFromGattErrorCode(error_code);
+  [characteristic_mock simulateGattNotifySessionFailedWithError:error];
+}
+
+void BluetoothTestMac::SimulateGattCharacteristicChanged(
+    BluetoothRemoteGattCharacteristic* characteristic,
+    const std::vector<uint8_t>& value) {
+  MockCBCharacteristic* characteristic_mock =
+      GetCBMockCharacteristic(characteristic);
+  scoped_nsobject<NSData> data(
+      [[NSData alloc] initWithBytes:value.data() length:value.size()]);
+  [characteristic_mock simulateGattCharacteristicChangedWithValue:data];
+}
+
 void BluetoothTestMac::SimulateGattCharacteristicRemoved(
     BluetoothRemoteGattService* service,
     BluetoothRemoteGattCharacteristic* characteristic) {
@@ -365,6 +391,10 @@ void BluetoothTest::OnFakeBluetoothCharacteristicWriteValue(
   gatt_write_characteristic_attempts_++;
 }
 
+void BluetoothTest::OnFakeBluetoothGattSetCharacteristicNotification() {
+  gatt_notify_characteristic_attempts_++;
+}
+
 MockCBPeripheral* BluetoothTestMac::GetMockCBPeripheral(
     BluetoothRemoteGattService* service) const {
   BluetoothDevice* device = service->GetDevice();