/*
    * 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.commons.net;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.io.IOException;
  import java.net.InetSocketAddress;
  import java.net.Proxy;
  import java.net.UnknownHostException;
  
  import org.apache.commons.net.ftp.FTPClient;
  import org.junit.jupiter.api.Test;
  
  /**
   * A simple test class for SocketClient settings.
   *
   * @since 3.2
   */
  public class SocketClientTest {
      private static final String PROXY_HOST = "127.0.0.1";
      private static final int PROXY_PORT = 1080;
  
      private static final String LOCALHOST_ADDRESS = "127.0.0.1";
      private static final String UNRESOLVED_HOST = "unresolved";
      private static final int REMOTE_PORT = 21;
  
      @Test
      public void testConnectResolved() {
          final SocketClient socketClient = new FTPClient();
  
          assertThrows(IOException.class, () -> socketClient.connect(LOCALHOST_ADDRESS, REMOTE_PORT));
          final InetSocketAddress remoteAddress = socketClient.getRemoteInetSocketAddress();
          assertFalse(remoteAddress.isUnresolved());
          assertEquals(LOCALHOST_ADDRESS, remoteAddress.getHostString());
          assertEquals(REMOTE_PORT, remoteAddress.getPort());
      }
  
      @Test
      public void testConnectUnresolved() {
          final SocketClient socketClient = new FTPClient();
  
          assertThrows(UnknownHostException.class, () -> socketClient.connect(UNRESOLVED_HOST, REMOTE_PORT, null, -1));
          final InetSocketAddress remoteAddress = socketClient.getRemoteInetSocketAddress();
          assertTrue(remoteAddress.isUnresolved());
          assertEquals(UNRESOLVED_HOST, remoteAddress.getHostString());
          assertEquals(REMOTE_PORT, remoteAddress.getPort());
      }
  
      /**
       * A simple test to verify that the Proxy is being set.
       */
      @Test
      public void testProxySettings() {
          final SocketClient socketClient = new FTPClient();
          assertNull(socketClient.getProxy());
          final Proxy proxy = new Proxy(Proxy.Type.SOCKS, new InetSocketAddress(PROXY_HOST, PROXY_PORT));
          socketClient.setProxy(proxy);
          assertEquals(proxy, socketClient.getProxy());
          assertFalse(socketClient.isConnected());
      }
  }