package org.apache.maven.surefire.junit4;
   /*
    * 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.util.Collections;
  import java.util.Set;
  import org.apache.maven.surefire.common.junit4.JUnit4TestChecker;
  import org.apache.maven.surefire.testset.TestSetFailedException;
  
  import junit.framework.TestCase;
  import junit.framework.TestResult;
  import org.junit.Test;
  import org.junit.internal.runners.InitializationError;
  import org.junit.runner.Description;
  import org.junit.runner.RunWith;
  import org.junit.runner.Runner;
  import org.junit.runner.notification.RunNotifier;
  import org.junit.runners.Suite;
  
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  /**
   * @author Kristian Rosenvold
   */
  public class JUnit4TestCheckerTest
  {
      private final JUnit4TestChecker jUnit4TestChecker = new JUnit4TestChecker( this.getClass().getClassLoader() );
  
      @Test
      public void validJunit4Annotated()
          throws TestSetFailedException
      {
          assertTrue( jUnit4TestChecker.accept( JUnit4TestCheckerTest.class ) );
      }
  
      @Test
      public void validJunit4itsAJunit3Test()
          throws TestSetFailedException
      {
          assertTrue( jUnit4TestChecker.accept( AlsoValid.class ) );
      }
  
      @Test
      public void validJunitSubclassWithoutOwnTestmethods()
          throws TestSetFailedException
      {
          assertTrue( jUnit4TestChecker.accept( SubClassWithoutOwnTestMethods.class ) );
      }
  
      @Test
      public void validSuite()
          throws TestSetFailedException
      {
          assertTrue( jUnit4TestChecker.accept( SuiteValid1.class ) );
      }
  
      @Test
      public void validCustomSuite()
          throws TestSetFailedException
      {
          assertTrue( jUnit4TestChecker.accept( SuiteValid2.class ) );
      }
  
      @Test
      public void validCustomRunner()
          throws TestSetFailedException
      {
          assertTrue( jUnit4TestChecker.accept( SuiteValidCustomRunner.class ) );
      }
  
      @Test
      public void invalidTest()
          throws TestSetFailedException
      {
          assertFalse( jUnit4TestChecker.accept( NotValidTest.class ) );
      }
  
      @Test
      public void dontAcceptAbstractClasses()
      {
          assertFalse( jUnit4TestChecker.accept( BaseClassWithTest.class ) );
      }
 
     @Test
     public void suiteOnlyTest()
     {
         assertTrue( jUnit4TestChecker.accept( SuiteOnlyTest.class ) );
     }
 
     @Test
     public void customSuiteOnlyTest()
     {
         assertTrue( jUnit4TestChecker.accept( CustomSuiteOnlyTest.class ) );
     }
 
     @Test
     public void innerClassNotAutomaticallyTc()
     {
         assertTrue( jUnit4TestChecker.accept( NestedTC.class ) );
         assertFalse( jUnit4TestChecker.accept( NestedTC.Inner.class ) );
     }
 
     @Test
     public void testCannotLoadRunWithAnnotation()
         throws Exception
     {
         Class testClass = SimpleJUnit4TestClass.class;
         ClassLoader testClassLoader = testClass.getClassLoader();
         // Emulate an OSGi classloader which filters on package level.
         // Use a classloader which can only load classes in package org.junit,
         // e.g. org.junit.Test, but no classes from other packages,
         // in particular org.junit.runner.RunWith can't be loaded
         Set<String> visiblePackages = Collections.singleton( "org.junit" );
         PackageFilteringClassLoader filteringTestClassloader =
             new PackageFilteringClassLoader( testClassLoader, visiblePackages );
         JUnit4TestChecker checker = new JUnit4TestChecker( filteringTestClassloader );
         assertTrue( checker.accept( testClass ) );
     }
 
     public static class AlsoValid
         extends TestCase
     {
         public void testSomething()
         {
 
         }
     }
 
     public static class SuiteOnlyTest
     {
         public static junit.framework.Test suite()
         {
             return null;
         }
     }
 
     public static class CustomSuiteOnlyTest
     {
         public static MySuite2 suite()
         {
             return null;
         }
     }
 
     public static class MySuite2
         implements junit.framework.Test
     {
         public int countTestCases()
         {
             return 0;
         }
 
         public void run( TestResult testResult )
         {
         }
     }
 
 
     @SuppressWarnings( { "UnusedDeclaration" } )
     public static class NotValidTest
     {
         public void testSomething()
         {
         }
     }
 
     public abstract static class BaseClassWithTest
     {
         @Test
         public void weAreAlsoATest()
         {
         }
     }
 
     public static class SubClassWithoutOwnTestMethods
         extends BaseClassWithTest
     {
     }
 
     @RunWith( Suite.class )
     public static class SuiteValid1
     {
         public void testSomething()
         {
 
         }
     }
 
     class CustomRunner
         extends Runner
     {
         @Override
         public Description getDescription()
         {
             return Description.createSuiteDescription( "CustomRunner" );
         }
 
         @Override
         public void run( RunNotifier runNotifier )
         {
         }
     }
 
     @RunWith( CustomRunner.class )
     public static class SuiteValidCustomRunner
     {
         public void testSomething()
         {
 
         }
     }
 
 
     @RunWith( MySuite.class )
     public static class SuiteValid2
     {
         public void testSomething()
         {
 
         }
     }
 
     public static class SimpleJUnit4TestClass
     {
         @Test
         public void testMethod()
         {
         }
     }
 
     class MySuite
         extends Suite
     {
         MySuite( Class<?> klass )
             throws InitializationError
         {
             super( klass );
         }
     }
 
     class NestedTC
         extends TestCase
     {
         public class Inner
         {
 
         }
     }
 
 }