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.clients.utils;
  
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  import io.grpc.ManagedChannelBuilder;
  import io.grpc.inprocess.InProcessChannelBuilder;
  import io.grpc.netty.shaded.io.grpc.netty.NettyChannelBuilder;
  import org.apache.bookkeeper.clients.config.StorageClientSettings;
  import org.junit.Test;
  
  /**
   * Unit test {@link GrpcChannels}.
   */
  public class GrpcChannelsTest {
  
      @Test
      public void testInprocessServiceUri() {
          String serviceUri = "bk+inprocess://service";
          ManagedChannelBuilder builder = GrpcChannels.createChannelBuilder(
              serviceUri,
              StorageClientSettings.newBuilder().serviceUri(serviceUri).build()
          );
          assertTrue(builder instanceof InProcessChannelBuilder);
      }
  
      @Test
      public void testBKServiceUri() {
          String serviceUri = "bk://127.0.0.1";
          ManagedChannelBuilder builder = GrpcChannels.createChannelBuilder(
              serviceUri,
              StorageClientSettings.newBuilder().serviceUri(serviceUri).build()
          );
          assertTrue(builder instanceof NettyChannelBuilder);
      }
  
      @Test
      public void testZKServiceUri() {
          String serviceUri = "zk://127.0.0.1/stream/servers";
          try {
              GrpcChannels.createChannelBuilder(
                  serviceUri,
                  StorageClientSettings.newBuilder().serviceUri(serviceUri).build()
              );
              fail("Should fail to create grpc channel because `bk-grpc-name-resolver` is not in the classpath");
          } catch (RuntimeException re) {
              assertTrue(re.getCause() instanceof ClassNotFoundException);
          }
      }
  
  }
  