content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.bookkeeper.stream.storage.impl.cluster;
  
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  
  import org.apache.bookkeeper.stream.storage.api.cluster.ClusterControllerLeader;
  import org.apache.curator.framework.CuratorFramework;
  import org.junit.Test;
  
  /**
   * Unit test {@link ZkClusterControllerLeaderSelectorListener}.
   */
  public class ZkClusterControllerLeaderSelectorListenerTest {
  
      @Test
      public void testTakeLeadership() throws Exception {
          ClusterControllerLeader leaderLogic = mock(ClusterControllerLeader.class);
  
          ZkClusterControllerLeaderSelectorListener listener = new ZkClusterControllerLeaderSelectorListener(leaderLogic);
          CuratorFramework curator = mock(CuratorFramework.class);
          listener.takeLeadership(curator);
  
          // if the listener is taking the leadership, it should execute the leader logic
          verify(leaderLogic, times(1)).processAsLeader();
      }
  
  }
  