Adding BluetoothTestBase::CheckNotifySessionValue() method

device/bluetooth/test/bluetooth_test.h

Index: device/bluetooth/test/bluetooth_test.h
diff --git a/device/bluetooth/test/bluetooth_test.h b/device/bluetooth/test/bluetooth_test.h
index 52b6224174cf9a314d7a3983ab59dd6ff4fec8b2..68172e736b27fc59d0ee318d7c5c78a97a2c61a1 100644
--- a/device/bluetooth/test/bluetooth_test.h
+++ b/device/bluetooth/test/bluetooth_test.h
@@ -56,6 +56,12 @@ class BluetoothTestBase : public testing::Test {
     HEART_RATE_DEVICE,
   };
 
+  enum class NotifyValueState {
+    NONE,
+    NOTIFY,
+    INDICATE,
+  };
+
   static const std::string kTestAdapterName;
   static const std::string kTestAdapterAddress;
 
@@ -401,6 +407,13 @@ class BluetoothTestBase : public testing::Test {
   virtual void SimulateGattDescriptorWriteWillFailSynchronouslyOnce(
       BluetoothRemoteGattDescriptor* descriptor) {}
 
+  // Tests if the notify value attemps.

[ortuno, 2017/02/23 05:56:00]

Tests that functions to change the notify value have been called |attempts|
times.

[jlebel, 2017/02/23 18:40:32]

Done.

+  virtual void ExpectedChangeNotifyValueAttempts(int attempts);
+
+  // Tests if the notify session has been changed. The default implementation

[ortuno, 2017/02/23 05:56:00]

Tests that the notify value is |expected_value_state|. The default
implementation checks
that the correct value has been written to the CCC Descriptor.

[jlebel, 2017/02/23 18:40:32]

Done.

+  // uses descriptors.
+  virtual void ExpectedNotifyValue(NotifyValueState expected_value_state);
+
   // Returns a list of local GATT services registered with the adapter.
   virtual std::vector<BluetoothLocalGattService*> RegisteredGattServices();
 
@@ -465,7 +478,7 @@ class BluetoothTestBase : public testing::Test {
       bool error_in_reentrant);
 
   // Reset all event count members to 0.
-  void ResetEventCounts();
+  virtual void ResetEventCounts();
 
   void RemoveTimedOutDevices();