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1   package org.apache.maven.surefire.common.junit4;
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 org.junit.runner.Description;
23  import org.junit.runner.manipulation.Filter;
24  
25  import java.util.ArrayList;
26  import java.util.List;
27  
28  /**
29   * Only run test methods in the given failure set.
30   *
31   * @author mpkorstanje
32   */
33  public final class MatchDescriptions
34      extends Filter
35  {
36      private final List<Filter> filters = new ArrayList<Filter>();
37  
38      public MatchDescriptions( Iterable<Description> descriptions )
39      {
40          for ( Description description : descriptions )
41          {
42              filters.add( matchDescription( description ) );
43          }
44      }
45  
46      @Override
47      public boolean shouldRun( Description description )
48      {
49          for ( Filter filter : filters )
50          {
51              if ( filter.shouldRun( description ) )
52              {
53                  return true;
54              }
55          }
56          return false;
57      }
58  
59      @Override
60      public String describe()
61      {
62          StringBuilder description = new StringBuilder( "Matching description " );
63          for ( int i = 0; i < filters.size(); i++ )
64          {
65              description.append( filters.get( i ).describe() );
66              if ( i != filters.size() - 1 )
67              {
68                  description.append( " OR " );
69              }
70          }
71          return description.toString();
72      }
73  
74      private static Filter matchDescription( final Description desiredDescription )
75      {
76          return new Filter()
77          {
78              @Override
79              public boolean shouldRun( Description description )
80              {
81                  if ( description.isTest() )
82                  {
83                      return desiredDescription.equals( description );
84                  }
85  
86                  for ( Description each : description.getChildren() )
87                  {
88                      if ( shouldRun( each ) )
89                      {
90                          return true;
91                      }
92                  }
93  
94                  return false;
95              }
96  
97              @Override
98              public String describe()
99              {
100                 return String.format( "Method %s", desiredDescription.getDisplayName() );
101             }
102         };
103     }
104 }