package org.apache.maven.plugins.enforcer;
   
   /*
    * 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.File;
  import java.io.IOException;
  
  import org.apache.maven.enforcer.rule.api.EnforcerRuleException;
  
  import junit.framework.TestCase;
  
  /**
   * Test the "require files exist" rule.
   * 
   * @author <a href="brett@apache.org">Brett Porter</a>
   */
  public class TestRequireFilesExist
      extends TestCase
  {
      RequireFilesExist rule = new RequireFilesExist();
  
      public void testFileExists()
          throws EnforcerRuleException, IOException
      {
          File f = File.createTempFile( "enforcer", "tmp" );
          f.deleteOnExit();
  
          rule.files = new File[] { f };
  
          rule.execute( EnforcerTestUtils.getHelper() );
  
          f.delete();
      }
  
      public void testEmptyFile()
          throws EnforcerRuleException, IOException
      {
          rule.files = new File[] { null };
          try
          {
              rule.execute( EnforcerTestUtils.getHelper() );
              fail( "Should get exception" );
          }
          catch ( EnforcerRuleException e )
          {
              assertTrue( true );
          }
      }
  
      public void testEmptyFileAllowNull()
          throws EnforcerRuleException, IOException
      {
          rule.files = new File[] { null };
          rule.allowNulls = true;
          try
          {
              rule.execute( EnforcerTestUtils.getHelper() );
          }
          catch ( EnforcerRuleException e )
          {
              fail( "Unexpected Exception:" + e.getLocalizedMessage() );
          }
      }
  
      public void testEmptyFileList()
          throws EnforcerRuleException, IOException
      {
          rule.files = new File[] {};
          assertEquals(0,rule.files.length);
          try
          {
              rule.execute( EnforcerTestUtils.getHelper() );
              fail( "Should get exception" );
          }
          catch ( EnforcerRuleException e )
          {
              assertTrue( true );
          }
      }
  
      public void testEmptyFileListAllowNull()
          throws EnforcerRuleException, IOException
     {
         rule.files = new File[] {};
         assertEquals(0,rule.files.length);
         rule.allowNulls = true;
         try
         {
             rule.execute( EnforcerTestUtils.getHelper() );
         }
         catch ( EnforcerRuleException e )
         {
             fail( "Unexpected Exception:" + e.getLocalizedMessage() );
         }
     }
 
     public void testFileDoesNotExist()
         throws EnforcerRuleException, IOException
     {
         File f = File.createTempFile( "enforcer", "tmp" );
         f.delete();
         assertTrue(!f.exists());
         rule.files = new File[] { f };
 
         try
         {
             rule.execute( EnforcerTestUtils.getHelper() );
             fail( "Should get exception" );
         }
         catch ( EnforcerRuleException e )
         {
             assertTrue( true );
         }
     }
 
     /**
      * Test id.
      */
     public void testId()
     {
         rule.getCacheId();
     }
 
 }