import static org.junit.Assert.assertTrue;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
final DOMDataTreeChangeListener domDataTreeChangeListener = mock(DOMDataTreeChangeListener.class);
final ListenerRegistration listenerRegistration = mock(ListenerRegistration.class);
doReturn(listenerRegistration).when(domDataTreeShard).registerTreeChangeListener(any(), any());
+ doNothing().when(domDataTreeChangeListener).onDataTreeChanged(any());
inMemoryDOMDataTreeShard.registerTreeChangeListener(YangInstanceIdentifier.EMPTY, domDataTreeChangeListener);
verify(domDataTreeShard, atLeastOnce()).registerTreeChangeListener(any(), any());