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.common.reslover;
  
  import static org.junit.Assert.assertEquals;
  import static org.mockito.Mockito.mock;
  
  import com.google.common.collect.Lists;
  import io.grpc.Attributes;
  import io.grpc.EquivalentAddressGroup;
  import java.net.InetSocketAddress;
  import java.net.URI;
  import java.util.List;
  import java.util.stream.Collectors;
  import org.apache.bookkeeper.common.resolver.StaticNameResolver;
  import org.apache.bookkeeper.common.util.SharedResourceManager.Resource;
  import org.junit.Test;
  
  /**
   * Unit test of {@link StaticNameResolver}.
   */
  public class TestSimpleNameResolver {
  
      static List<InetSocketAddress> createServers(int numBookies) {
          List<InetSocketAddress> servers = Lists.newArrayListWithExpectedSize(numBookies);
          int basePort = 3181;
          for (int i = 0; i < numBookies; i++) {
              servers.add(new InetSocketAddress("127.0.0.1", basePort + i));
          }
          return servers;
      }
  
      @Test
      public void testGetServers() {
          List<InetSocketAddress> servers = createServers(5);
          List<URI> uris = servers
              .stream()
              .map(addr -> URI.create("bookie://" + addr.getHostName() + ":" + addr.getPort()))
              .collect(Collectors.toList());
          List<EquivalentAddressGroup> resolvedServers = servers
              .stream()
              .map(addr -> new EquivalentAddressGroup(
                  Lists.newArrayList(addr),
                  Attributes.EMPTY))
              .collect(Collectors.toList());
  
          @SuppressWarnings("unchecked") // for the mock
              StaticNameResolver nameResolver = new StaticNameResolver(
              "test-name-resolver",
              mock(Resource.class),
              uris);
  
          assertEquals(resolvedServers, nameResolver.getServers());
      }
  
  }
  