package org.apache.maven.project.interpolation;
   
   /*
    * 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 org.apache.maven.model.Build;
  import org.apache.maven.model.Model;
  
  import java.util.HashMap;
  import java.util.Properties;
  
  import junit.framework.TestCase;
  
  public class ModelInterpolationEdgeCases
      extends TestCase
  {
  
      public void testMultiExpressionRecursion()
          throws Throwable
      {
          Test test = new Test()
          {
  
              void run()
              {
                  Model model = new Model();
                  Build build = new Build();
  
                  model.setBuild( build );
  
                  build.setDirectory( "${project.build.sourceDirectory}" );
                  build.setSourceDirectory( "${project.build.testSourceDirectory}/../main" );
                  build.setTestSourceDirectory( "${project.build.directory}/test" );
  
                  try
                  {
                      interpolate( model );
  
                      System.out.println( "Should fail." );
  
                      failureMessage = "should fail with expression cycle in build paths.";
  //                    fail("should fail with expression cycle in build paths.");
                  }
                  catch ( ModelInterpolationException e )
                  {
                      // expected
                  }
                  catch ( Throwable e )
                  {
                      error = e;
  //                    throw e;
                  }
              }
          };
  
  
          run( test );
      }
  
      public void testMultiPrefixRecursion_Synonyms()
          throws Throwable
      {
          Test test = new Test()
          {
  
              void run()
              {
                  Model model = new Model();
                  Build build = new Build();
  
                  model.setBuild( build );
  
                  build.setDirectory( "${project.build.directory}" );
                  build.setSourceDirectory( "${pom.build.sourceDirectory}" );
                  build.setTestSourceDirectory( "${build.testSourceDirectory}" );
  
                  try
                  {
                      interpolate( model );
  
                      System.out.println( "Should fail." );
  
                      failureMessage = "should fail with expression synonym recursion.";
                 }
                 catch ( ModelInterpolationException e )
                 {
                     // expected
                 }
                 catch ( Throwable e )
                 {
                     error = e;
                 }
             }
         };
 
         run( test );
     }
 
     public void testMultiPrefixSeparation_EnvarPropertyDifference()
         throws Throwable
     {
         Test test = new Test()
         {
 
             void run()
             {
                 Model model = new Model();
 
                 Properties properties = new Properties();
 
                 properties.setProperty( "ENVAR", "pomValue" );
                 properties.setProperty( "prop", "${env.ENVAR}" );
                 properties.setProperty( "prop2", "${pom.ENVAR}" );
 
                 model.setProperties( properties );
 
                 try
                 {
                     Model result = interpolate( model );
 
                     Properties resultProps = result.getProperties();
                     assertFalse( "Values should not match!", resultProps.getProperty( "prop" ).equals( resultProps.getProperty( "prop2" ) ) );
                 }
                 catch ( ModelInterpolationException e )
                 {
                     error = e;
                 }
                 catch ( Throwable e )
                 {
                     error = e;
                 }
             }
         };
 
         run( test );
     }
 
     private void run( Test test )
         throws Throwable
     {
         Thread t = new Thread( new TestRunnable( test ) );
         t.setDaemon( true );
 
         t.start();
 
         try
         {
             t.join( 5000 );
         }
         catch ( InterruptedException e )
         {
         }
 
         if ( t.isAlive() )
         {
             StackTraceElement element = new Throwable().getStackTrace()[1];
 
             fail( "Test: "
                   + element.getMethodName()
                   + " failed to execute in 5 seconds. Looks like it's caught in an infinite loop of some kind." );
         }
         else
         {
             test.checkFailure();
         }
     }
 
     private Model interpolate( Model model )
         throws Throwable
     {
         RegexBasedModelInterpolator interpolator = new RegexBasedModelInterpolator();
         interpolator.initialize();
 
         return interpolator.interpolate( model, new HashMap(), true );
     }
 
     private static final class TestRunnable
         implements Runnable
     {
         private Test test;
 
         TestRunnable( Test test )
         {
             this.test = test;
         }
 
         public void run()
         {
             test.run();
         }
 
     }
 
     private static abstract class Test
     {
         String failureMessage;
 
         Throwable error;
 
         abstract void run();
 
         void checkFailure()
             throws Throwable
         {
             if ( error != null )
             {
                 throw error;
             }
             else if ( failureMessage != null )
             {
                 fail( failureMessage );
             }
         }
 
     }
 
 }