package org.apache.maven.exception;
   
   /*
    * 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.
   */
  
  import java.io.IOException;
  import java.net.ConnectException;
  
  import org.apache.maven.model.Plugin;
  import org.apache.maven.plugin.MojoExecution;
  import org.apache.maven.plugin.MojoExecutionException;
  
  import org.apache.maven.plugin.PluginContainerException;
  import org.apache.maven.plugin.PluginExecutionException;
  import org.apache.maven.plugin.descriptor.MojoDescriptor;
  import org.apache.maven.plugin.descriptor.PluginDescriptor;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  
  /**
   * @author <a href="mailto:baerrach@apache.org">Barrie Treloar</a>
   */
  public class DefaultExceptionHandlerTest
  {
      /**
       * Running Maven under JDK7 may cause connection issues because IPv6 is used by default.
       * <p>
       * e.g running mvn site:run will cause Jetty to fail.
       * </p>
       * <p>
       * The resolution is to add -Djava.net.preferIPv4Stack=true to the command line as documented in
       * http://cwiki.apache.org/confluence/display/MAVEN/ConnectException
       * </p>
       */
      @Test
      public void testJdk7ipv6()
      {
          ConnectException connEx = new ConnectException( "Connection refused: connect" );
          IOException ioEx = new IOException( "Unable to establish loopback connection", connEx );
          MojoExecutionException mojoEx =
              new MojoExecutionException( "Error executing Jetty: Unable to establish loopback connection", ioEx );
  
          ExceptionHandler exceptionHandler = new DefaultExceptionHandler();
          ExceptionSummary exceptionSummary = exceptionHandler.handleException( mojoEx );
  
          String expectedReference = "http://cwiki.apache.org/confluence/display/MAVEN/ConnectException";
          assertEquals( expectedReference, exceptionSummary.getReference() );
  
      }
  
      @Test
      public void testHandleExceptionAetherClassNotFound()
      {
          Throwable cause2 = new NoClassDefFoundError( "org/sonatype/aether/RepositorySystem" );
          Plugin plugin = new Plugin();
          Exception cause = new PluginContainerException( plugin, null, null, cause2 );
          PluginDescriptor pluginDescriptor = new PluginDescriptor();
          MojoDescriptor mojoDescriptor = new MojoDescriptor();
          mojoDescriptor.setPluginDescriptor( pluginDescriptor );
          MojoExecution mojoExecution = new MojoExecution(mojoDescriptor);
          Throwable exception = new PluginExecutionException( mojoExecution, null, cause );
  
          DefaultExceptionHandler handler = new DefaultExceptionHandler();
          ExceptionSummary summary = handler.handleException( exception );
  
          String expectedReference = "http://cwiki.apache.org/confluence/display/MAVEN/AetherClassNotFound";
          assertEquals( expectedReference, summary.getReference() );
      }
  
      @Test
      public void testHandleExceptionNoClassDefFoundErrorNull()
      {
          Throwable cause2 = new NoClassDefFoundError();
          Plugin plugin = new Plugin();
          Exception cause = new PluginContainerException( plugin, null, null, cause2 );
          PluginDescriptor pluginDescriptor = new PluginDescriptor();
          MojoDescriptor mojoDescriptor = new MojoDescriptor();
          mojoDescriptor.setPluginDescriptor( pluginDescriptor );
          MojoExecution mojoExecution = new MojoExecution(mojoDescriptor);
          Throwable exception = new PluginExecutionException( mojoExecution, null, cause );
  
          DefaultExceptionHandler handler = new DefaultExceptionHandler();
         ExceptionSummary summary = handler.handleException( exception );
 
         String expectedReference = "http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException";
         assertEquals( expectedReference, summary.getReference() );
     }
 }