package org.apache.maven.surefire.its;
   /*
    * 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.it.VerificationException;
  import org.apache.maven.it.Verifier;
  import org.apache.maven.it.util.ResourceExtractor;
  import org.apache.maven.surefire.its.misc.HelperAssertions;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.Arrays;
  import java.util.Calendar;
  import java.util.Iterator;
  import java.util.List;
  
  /**
   * Verifies the runOrder setting and its effect
   *
   * @author Kristian Rosenvold
   */
  public class RunOrderIT
      extends AbstractSurefireIntegrationTestClass
  {
      // testing random is left as an exercise to the reader. Patches welcome
  
      public void testAlphabetical()
          throws Exception
      {
          checkOrder( "alphabetical", getAlphabetical() );
      }
  
  
      public void testReverseAlphabetical()
          throws Exception
      {
          checkOrder( "reversealphabetical", getReverseAlphabetical() );
      }
  
  
      public void testHourly()
          throws Exception
      {
          int startHour = Calendar.getInstance().get( Calendar.HOUR_OF_DAY );
          final List<String> actual = executeWithRunOrder( "hourly" );
          int endHour = Calendar.getInstance().get( Calendar.HOUR_OF_DAY );
          if ( startHour != endHour )
          {
              return; // Race condition, cannot test when hour changed mid-run
          }
  
          List<String> expected = ( ( startHour % 2 ) == 0 ) ? getAlphabetical() : getReverseAlphabetical();
          if ( !contains( actual, expected ) )
          {
              throw new VerificationException( "Response does not contain expected item" );
          }
      }
  
      private boolean contains( List<String> items, List<String> expected )
      {
          Iterator<String> expectedIterator = expected.iterator();
          String next = (String) expectedIterator.next();
          Iterator<String> content = items.iterator();
          while ( content.hasNext() )
          {
              String line = content.next();
              if ( line.startsWith( next ) )
              {
                  if ( !expectedIterator.hasNext() )
                  {
                      return true;
                  }
                  next = expectedIterator.next();
              }
          }
          return content.hasNext();
      }
  
      private void checkOrder( String alphabetical, List<String> expected )
          throws VerificationException, IOException
      {
          final List<String> list = executeWithRunOrder( alphabetical );
          if ( !contains( list, expected ) )
         {
             throw new VerificationException( "Response does not contain expected item" );
         }
     }
 
     private List<String> executeWithRunOrder( String runOrder )
         throws IOException, VerificationException
     {
         File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/runOrder" );
         Verifier verifier = new Verifier( testDir.getAbsolutePath() );
 
         List<String> goals = getInitialGoals();
         goals.add( "-DrunOrder=" + runOrder );
         goals.add( "test" );
         this.executeGoals( verifier, goals );
         verifier.verifyErrorFreeLog();
         verifier.resetStreams();
         HelperAssertions.assertTestSuiteResults( 3, 0, 0, 0, testDir );
         return verifier.loadFile( verifier.getBasedir(), verifier.getLogFileName(), false );
     }
 
     private List<String> getAlphabetical()
     {
         return Arrays.asList( new String[]{ "TA", "TB", "TC" } );
     }
 
     private List<String> getReverseAlphabetical()
     {
         return Arrays.asList( new String[]{ "TC", "TB", "TA" } );
     }
 
 }