Merge "Remove all device from preference when BT is disabled" into qt-dev
diff --git a/src/com/android/settings/bluetooth/BluetoothDeviceUpdater.java b/src/com/android/settings/bluetooth/BluetoothDeviceUpdater.java
index 260297a..0e935c0 100644
--- a/src/com/android/settings/bluetooth/BluetoothDeviceUpdater.java
+++ b/src/com/android/settings/bluetooth/BluetoothDeviceUpdater.java
@@ -115,6 +115,8 @@
             for (CachedBluetoothDevice cachedBluetoothDevice : cachedDevices) {
                 update(cachedBluetoothDevice);
             }
+        } else {
+          removeAllDevicesFromPreference();
         }
     }
 
diff --git a/tests/robotests/src/com/android/settings/bluetooth/BluetoothDeviceUpdaterTest.java b/tests/robotests/src/com/android/settings/bluetooth/BluetoothDeviceUpdaterTest.java
index 24aae85..1066552 100644
--- a/tests/robotests/src/com/android/settings/bluetooth/BluetoothDeviceUpdaterTest.java
+++ b/tests/robotests/src/com/android/settings/bluetooth/BluetoothDeviceUpdaterTest.java
@@ -215,11 +215,14 @@
     }
 
     @Test
-    public void forceUpdate_bluetoothDisabled_doNothing() {
+    public void forceUpdate_bluetoothDisabled_removeAllDevicesFromPreference() {
         mShadowBluetoothAdapter.setEnabled(false);
+        mBluetoothDeviceUpdater.mPreferenceMap.put(mBluetoothDevice, mPreference);
+
         mBluetoothDeviceUpdater.forceUpdate();
 
-        verify(mDevicePreferenceCallback, never()).onDeviceAdded(any(Preference.class));
+        verify(mDevicePreferenceCallback).onDeviceRemoved(mPreference);
+        assertThat(mBluetoothDeviceUpdater.mPreferenceMap).isEmpty();
     }
 
     @Test