package org.apache.maven.surefire.junitcore;
   
   /*
    * 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.surefire.report.CategorizedReportEntry;
  import org.apache.maven.surefire.report.ConsoleOutputReceiver;
  import org.apache.maven.surefire.report.ConsoleOutputReceiverForCurrentThread;
  import org.apache.maven.surefire.report.ReportEntry;
  import org.apache.maven.surefire.report.RunListener;
  
  import java.util.concurrent.atomic.AtomicReference;
  
  /**
   * Represents the test-state of a single test method that is run.
   * <p/>
   * Notes about thread safety: This instance is serially confined to 1-3 threads (construction, test-run, reporting),
   * without any actual parallel access
   */
  class TestMethod
      implements ConsoleOutputReceiver
  {
      private static final InheritableThreadLocal<TestMethod> TEST_METHOD = new InheritableThreadLocal<TestMethod>();
  
      private final AtomicReference<LogicalStream> output = new AtomicReference<LogicalStream>();
  
      private final ReportEntry description;
  
      private final TestSet testSet;
  
      private final long startTime;
  
      private volatile long endTime;
  
      private volatile ReportEntry testFailure;
  
      private volatile ReportEntry testError;
  
      private volatile ReportEntry ignored;
  
      TestMethod( ReportEntry description, TestSet testSet )
      {
          this.description = description;
          this.testSet = testSet;
          startTime = System.currentTimeMillis();
      }
  
      void testFinished()
      {
          setEndTime();
      }
  
      void testIgnored( ReportEntry description )
      {
          ignored = description;
          setEndTime();
      }
  
      void testFailure( ReportEntry failure )
      {
          this.testFailure = failure;
          setEndTime();
      }
  
      void testError( ReportEntry failure )
      {
          this.testError = failure;
          setEndTime();
      }
  
      private void setEndTime()
      {
          this.endTime = System.currentTimeMillis();
      }
  
      int getElapsed()
      {
          return endTime > 0 ? (int) ( endTime - startTime ) : 0;
      }
  
      long getStartTime()
      {
          return startTime;
     }
 
     long getEndTime()
     {
         return endTime;
     }
 
     void replay( RunListener reporter )
     {
         if ( ignored != null )
         {
             reporter.testSkipped( createReportEntry( ignored ) );
         }
         else
         {
             ReportEntry descriptionReport = createReportEntry( description );
             reporter.testStarting( descriptionReport );
             LogicalStream ls = output.get();
             if ( ls != null )
             {
                 ls.writeDetails( (ConsoleOutputReceiver) reporter );
             }
 
             if ( testFailure != null )
             {
                 reporter.testFailed( createReportEntry( testFailure ) );
             }
             else if ( testError != null )
             {
                 reporter.testError( createReportEntry( testError ) );
             }
             else
             {
                 reporter.testSucceeded( descriptionReport );
             }
         }
     }
 
     private ReportEntry createReportEntry( ReportEntry reportEntry )
     {
         return new CategorizedReportEntry( reportEntry.getSourceName(), reportEntry.getName(), reportEntry.getGroup(),
                                            reportEntry.getStackTraceWriter(), getElapsed(), reportEntry.getMessage() );
     }
 
     void attachToThread()
     {
         TEST_METHOD.set( this );
         ConsoleOutputReceiverForCurrentThread.set( this );
     }
 
     void detachFromCurrentThread()
     {
         TEST_METHOD.remove();
         ConsoleOutputReceiverForCurrentThread.remove();
     }
 
     static TestMethod getThreadTestMethod()
     {
         return TEST_METHOD.get();
     }
 
     LogicalStream getLogicalStream()
     {
         LogicalStream ls = output.get();
         if ( ls == null )
         {
             ls = new LogicalStream();
             if ( !output.compareAndSet( null, ls ) )
             {
                 ls = output.get();
             }
         }
         return ls;
     }
 
     public void writeTestOutput( byte[] buf, int off, int len, boolean stdout )
     {
         getLogicalStream().write( stdout, buf, off, len );
     }
 
     public TestSet getTestSet()
     {
         return testSet;
     }
 }