bluetooth: android: Confirm the notify session after the descriptor has been written.

device/bluetooth/test/android/java/src/org/chromium/device/bluetooth/Fakes.java

Index: device/bluetooth/test/android/java/src/org/chromium/device/bluetooth/Fakes.java
diff --git a/device/bluetooth/test/android/java/src/org/chromium/device/bluetooth/Fakes.java b/device/bluetooth/test/android/java/src/org/chromium/device/bluetooth/Fakes.java
index 538f618d6aa7efeadd0f9e9cea26a499a4920c99..b13488a516e1ab75a187bbfad8a77b6a330246bc 100644
--- a/device/bluetooth/test/android/java/src/org/chromium/device/bluetooth/Fakes.java
+++ b/device/bluetooth/test/android/java/src/org/chromium/device/bluetooth/Fakes.java
@@ -354,6 +354,7 @@ class Fakes {
         boolean mReadCharacteristicWillFailSynchronouslyOnce = false;
         boolean mSetCharacteristicNotificationWillFailSynchronouslyOnce = false;
         boolean mWriteCharacteristicWillFailSynchronouslyOnce = false;
+        boolean mReadDescriptorWillFailSynchronouslyOnce = false;
         boolean mWriteDescriptorWillFailSynchronouslyOnce = false;
 
         public FakeBluetoothGatt(FakeBluetoothDevice device) {
@@ -417,6 +418,16 @@ class Fakes {
         }
 
         @Override
+        boolean readDescriptor(Wrappers.BluetoothGattDescriptorWrapper descriptor) {
+            if (mReadDescriptorWillFailSynchronouslyOnce) {
+                mReadDescriptorWillFailSynchronouslyOnce = false;
+                return false;
+            }
+            nativeOnFakeBluetoothGattReadDescriptor(mDevice.mAdapter.mNativeBluetoothTestAndroid);
+            return true;
+        }
+
+        @Override
         boolean writeDescriptor(Wrappers.BluetoothGattDescriptorWrapper descriptor) {
             if (mWriteDescriptorWillFailSynchronouslyOnce) {
                 mWriteDescriptorWillFailSynchronouslyOnce = false;
@@ -672,15 +683,65 @@ class Fakes {
         final FakeBluetoothGattCharacteristic mCharacteristic;
         final UUID mUuid;
         byte[] mValue;
+        static FakeBluetoothGattDescriptor sRememberedDescriptor;
 
         public FakeBluetoothGattDescriptor(
                 FakeBluetoothGattCharacteristic characteristic, UUID uuid) {
-            super(null);
+            super(null, null);
             mCharacteristic = characteristic;
             mUuid = uuid;
             mValue = new byte[0];
         }
 
+        // Implements BluetoothTestAndroid::RememberDescriptorForSubsequentAction.
+        @CalledByNative("FakeBluetoothGattDescriptor")
+        private static void rememberDescriptorForSubsequentAction(
+                ChromeBluetoothRemoteGattDescriptor chromeDescriptor) {
+            sRememberedDescriptor = (FakeBluetoothGattDescriptor) chromeDescriptor.mDescriptor;
+        }
+
+        // Simulate a value being read from a descriptor.
+        @CalledByNative("FakeBluetoothGattDescriptor")
+        private static void valueRead(
+                ChromeBluetoothRemoteGattDescriptor chromeDescriptor, int status, byte[] value) {
+            if (chromeDescriptor == null && sRememberedDescriptor == null)
+                throw new IllegalArgumentException("rememberDescriptor wasn't called previously.");
+
+            FakeBluetoothGattDescriptor fakeDescriptor = (chromeDescriptor == null)
+                    ? sRememberedDescriptor
+                    : (FakeBluetoothGattDescriptor) chromeDescriptor.mDescriptor;
+
+            fakeDescriptor.mValue = value;
+            fakeDescriptor.mCharacteristic.mService.mDevice.mGattCallback.onDescriptorRead(
+                    fakeDescriptor, status);
+        }
+
+        // Simulate a value being written to a descriptor.
+        @CalledByNative("FakeBluetoothGattDescriptor")
+        private static void valueWrite(
+                ChromeBluetoothRemoteGattDescriptor chromeDescriptor, int status) {
+            if (chromeDescriptor == null && sRememberedDescriptor == null)
+                throw new IllegalArgumentException("rememberDescriptor wasn't called previously.");
+
+            FakeBluetoothGattDescriptor fakeDescriptor = (chromeDescriptor == null)
+                    ? sRememberedDescriptor
+                    : (FakeBluetoothGattDescriptor) chromeDescriptor.mDescriptor;
+
+            fakeDescriptor.mCharacteristic.mService.mDevice.mGattCallback.onDescriptorWrite(
+                    fakeDescriptor, status);
+        }
+
+        // Cause subsequent value read of a descriptor to fail synchronously.
+        @CalledByNative("FakeBluetoothGattDescriptor")
+        private static void setReadDescriptorWillFailSynchronouslyOnce(
+                ChromeBluetoothRemoteGattDescriptor chromeDescriptor) {
+            FakeBluetoothGattDescriptor fakeDescriptor =
+                    (FakeBluetoothGattDescriptor) chromeDescriptor.mDescriptor;
+
+            fakeDescriptor.mCharacteristic.mService.mDevice.mGatt
+                    .mReadDescriptorWillFailSynchronouslyOnce = true;
+        }
+
         // Cause subsequent value write of a descriptor to fail synchronously.
         @CalledByNative("FakeBluetoothGattDescriptor")
         private static void setWriteDescriptorWillFailSynchronouslyOnce(
@@ -696,6 +757,11 @@ class Fakes {
         // Wrappers.BluetoothGattDescriptorWrapper overrides:
 
         @Override
+        public Wrappers.BluetoothGattCharacteristicWrapper getCharacteristic() {
+            return mCharacteristic;
+        }
+
+        @Override
         public UUID getUuid() {
             return mUuid;
         }
@@ -741,6 +807,10 @@ class Fakes {
     private static native void nativeOnFakeBluetoothGattWriteCharacteristic(
             long nativeBluetoothTestAndroid, byte[] value);
 
+    // Binds to BluetoothTestAndroid::OnFakeBluetoothGattReadDescriptor.
+    private static native void nativeOnFakeBluetoothGattReadDescriptor(
+            long nativeBluetoothTestAndroid);
+
     // Binds to BluetoothTestAndroid::OnFakeBluetoothGattWriteDescriptor.
     private static native void nativeOnFakeBluetoothGattWriteDescriptor(
             long nativeBluetoothTestAndroid, byte[] value);