View Javadoc
1   package org.apache.maven.surefire.common.junit3;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.lang.reflect.Method;
23  import java.lang.reflect.Modifier;
24  import org.apache.maven.surefire.NonAbstractClassFilter;
25  import org.apache.maven.surefire.util.ReflectionUtils;
26  import org.apache.maven.surefire.util.ScannerFilter;
27  
28  /**
29   * Missing tests ? This class is basically a subset of the JUnit4TestChecker, which is tested
30   * to boredom and back. Unfortunately we don't have any common module between these providers,
31   * so this stuff is duplicated. We should probably make some modules and just shade the content
32   * into the providers.
33   *
34   * @author Kristian Rosenvold
35   */
36  public class JUnit3TestChecker
37      implements ScannerFilter
38  {
39      private final Class junitClass;
40  
41      private static final Class[] EMPTY_CLASS_ARRAY = new Class[0];
42  
43  
44      private final NonAbstractClassFilter nonAbstractClassFilter = new NonAbstractClassFilter();
45  
46  
47      public JUnit3TestChecker( ClassLoader testClassLoader )
48      {
49          junitClass = ReflectionUtils.tryLoadClass( testClassLoader, "junit.framework.Test" );
50      }
51  
52      public boolean accept( Class testClass )
53      {
54          return nonAbstractClassFilter.accept( testClass ) && isValidJUnit3Test( testClass );
55      }
56  
57      private boolean isValidJUnit3Test( Class testClass )
58      {
59          return junitClass != null && ( junitClass.isAssignableFrom( testClass ) || isSuiteOnly( testClass ) );
60      }
61  
62      public boolean isSuiteOnly( Class testClass )
63      {
64          final Method suite = ReflectionUtils.tryGetMethod( testClass, "suite", EMPTY_CLASS_ARRAY );
65          if ( suite != null )
66          {
67  
68              final int modifiers = suite.getModifiers();
69              if ( Modifier.isPublic( modifiers ) && Modifier.isStatic( modifiers ) )
70              {
71                  return junit.framework.Test.class.isAssignableFrom( suite.getReturnType() );
72              }
73          }
74          return false;
75      }
76  
77  }