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.tests.integration.cluster;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertSame;
  import static org.junit.Assert.assertTrue;
  
  import java.util.Set;
  import lombok.extern.slf4j.Slf4j;
  import org.apache.bookkeeper.common.concurrent.FutureUtils;
  import org.apache.bookkeeper.net.BookieId;
  import org.apache.bookkeeper.tests.containers.BookieContainer;
  import org.junit.FixMethodOrder;
  import org.junit.Test;
  import org.junit.runners.MethodSorters;
  
  /**
   * A simple test on bookkeeper cluster operations, e.g. start bookies, stop bookies and list bookies.
   */
  @Slf4j
  @FixMethodOrder(MethodSorters.NAME_ASCENDING)
  public class SimpleClusterTest extends BookKeeperClusterTestBase {
  
      @Test
      public void test000_ClusterIsEmpty() throws Exception {
          Set<BookieId> bookies =
              FutureUtils.result(metadataClientDriver.getRegistrationClient().getWritableBookies()).getValue();
          assertTrue(bookies.isEmpty());
      }
  
      @Test
      public void test001_StartBookie() throws Exception {
          String bookieName = "bookie-000";
          BookieContainer container = bkCluster.createBookie(bookieName);
          assertNotNull("Container should be started", container);
          assertEquals(1, bkCluster.getBookieContainers().size());
          assertSame(container, bkCluster.getBookie(bookieName));
  
          Set<BookieId> bookies =
              FutureUtils.result(metadataClientDriver.getRegistrationClient().getWritableBookies()).getValue();
          assertEquals(1, bookies.size());
      }
  
      @Test
      public void test002_StopBookie() throws Exception {
          String bookieName = "bookie-000";
          BookieContainer container = bkCluster.killBookie(bookieName);
          assertNotNull("Bookie '" + bookieName + "' doesn't exist", container);
          assertEquals(0, bkCluster.getBookieContainers().size());
          assertNull(bkCluster.getBookie(bookieName));
  
          waitUntilBookieUnregistered(bookieName);
  
          Set<BookieId> bookies =
              FutureUtils.result(metadataClientDriver.getRegistrationClient().getWritableBookies()).getValue();
          assertEquals(0, bookies.size());
      }
  
  }
  