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.kafka.network;
  
  import org.apache.kafka.common.Endpoint;
  import org.apache.kafka.common.network.ListenerName;
  import org.apache.kafka.common.security.auth.SecurityProtocol;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.List;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class SocketServerConfigsTest {
      @Test
      public void testDefaultNameToSecurityProto() {
          Map<ListenerName, SecurityProtocol> expected = Map.of(
                  new ListenerName("PLAINTEXT"), SecurityProtocol.PLAINTEXT,
                  new ListenerName("SSL"), SecurityProtocol.SSL,
                  new ListenerName("SASL_PLAINTEXT"), SecurityProtocol.SASL_PLAINTEXT,
                  new ListenerName("SASL_SSL"), SecurityProtocol.SASL_SSL
          );
          assertEquals(expected, SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO);
      }
  
      @Test
      public void testListenerListToEndPointsWithEmptyString() {
          assertEquals(List.of(),
              SocketServerConfigs.listenerListToEndPoints("",
                  SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO));
      }
  
      @Test
      public void testListenerListToEndPointsWithBlankString() {
          assertEquals(List.of(),
              SocketServerConfigs.listenerListToEndPoints(" ",
                  SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO));
      }
  
      @Test
      public void testListenerListToEndPointsWithOneEndpoint() {
          assertEquals(List.of(new Endpoint("PLAINTEXT", SecurityProtocol.PLAINTEXT, "example.com", 8080)),
                  SocketServerConfigs.listenerListToEndPoints("PLAINTEXT://example.com:8080",
                      SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO));
      }
  
      // Regression test for KAFKA-3719
      @Test
      public void testListenerListToEndPointsWithUnderscores() {
          assertEquals(List.of(
              new Endpoint("PLAINTEXT", SecurityProtocol.PLAINTEXT, "example.com", 8080),
              new Endpoint("SSL", SecurityProtocol.SSL, "local_host", 8081)),
                  SocketServerConfigs.listenerListToEndPoints("PLAINTEXT://example.com:8080,SSL://local_host:8081",
                      SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO));
      }
  
      @Test
      public void testListenerListToEndPointsWithWildcard() {
          assertEquals(List.of(new Endpoint("PLAINTEXT", SecurityProtocol.PLAINTEXT, null, 8080)),
                  SocketServerConfigs.listenerListToEndPoints("PLAINTEXT://:8080",
                      SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO));
      }
  
      @Test
      public void testListenerListToEndPointsWithIpV6() {
          assertEquals(List.of(new Endpoint("PLAINTEXT", SecurityProtocol.PLAINTEXT, "::1", 9092)),
                  SocketServerConfigs.listenerListToEndPoints("PLAINTEXT://[::1]:9092",
                      SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO));
      }
  
      @Test
      public void testAnotherListenerListToEndPointsWithIpV6() {
          assertEquals(List.of(new Endpoint("SASL_SSL", SecurityProtocol.SASL_SSL, "fe80::b1da:69ca:57f7:63d8%3", 9092)),
                  SocketServerConfigs.listenerListToEndPoints("SASL_SSL://[fe80::b1da:69ca:57f7:63d8%3]:9092",
                      SocketServerConfigs.DEFAULT_NAME_TO_SECURITY_PROTO));
      }
  
      @Test
      public void testAnotherListenerListToEndPointsWithNonDefaultProtoMap() {
          assertEquals(List.of(new Endpoint("CONTROLLER", SecurityProtocol.PLAINTEXT, "example.com", 9093)),
                  SocketServerConfigs.listenerListToEndPoints("CONTROLLER://example.com:9093",
                      Map.of(new ListenerName("CONTROLLER"), SecurityProtocol.PLAINTEXT)));
      }
  }
  