-import ch.ethz.ssh2.Connection;
-import ch.ethz.ssh2.Session;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Sets;
-import io.netty.channel.ChannelFuture;
+import static java.util.Collections.emptyList;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+