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.meta;
  
  import static org.apache.bookkeeper.util.BookKeeperConstants.LAYOUT_ZNODE;
  import static org.junit.Assert.assertEquals;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  import org.apache.zookeeper.CreateMode;
  import org.apache.zookeeper.ZooDefs.Ids;
  import org.apache.zookeeper.ZooKeeper;
  import org.junit.Test;
  
  /**
   * Unit test of {@link ZkLayoutManager}.
   */
  public class TestZkLayoutManager {
  
      private static final String ledgersRootPath = "/path/to/ledgers/root";
      private static final String layoutPath = ledgersRootPath + "/" + LAYOUT_ZNODE;
      private static final int managerVersion = 78;
  
      private final ZooKeeper zk;
      private final LedgerLayout layout;
      private final ZkLayoutManager zkLayoutManager;
  
      public TestZkLayoutManager() {
          this.zk = mock(ZooKeeper.class);
          this.layout = new LedgerLayout(
              HierarchicalLedgerManagerFactory.class.getName(),
              managerVersion);
          this.zkLayoutManager = new ZkLayoutManager(zk, ledgersRootPath, Ids.OPEN_ACL_UNSAFE);
      }
  
      @Test
      public void testReadLayout() throws Exception {
          when(zk.getData(eq(layoutPath), eq(false), eq(null)))
              .thenReturn(layout.serialize());
  
          assertEquals(layout, zkLayoutManager.readLedgerLayout());
      }
  
      @Test
      public void testStoreLayout() throws Exception {
          zkLayoutManager.storeLedgerLayout(layout);
  
          verify(zk, times(1))
              .create(eq(layoutPath), eq(layout.serialize()), eq(Ids.OPEN_ACL_UNSAFE), eq(CreateMode.PERSISTENT));
      }
  
      @Test
      public void testDeleteLayout() throws Exception {
          zkLayoutManager.deleteLedgerLayout();
  
          verify(zk, times(1))
              .delete(eq(layoutPath), eq(-1));
      }
  
  }
  