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1   package org.apache.maven.surefire.util.internal;
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.util.regex.Matcher;
23  import java.util.regex.Pattern;
24  
25  /**
26   * JUnit Description parser.
27   * Used by JUnit Version lower than 4.7.
28   *
29   * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
30   * @since 2.20
31   */
32  public final class TestClassMethodNameUtils
33  {
34      /**
35       * This pattern is verbatim copy from JUnit's code in class {@code Description}.
36       * Parsing class and method from junit description would provide identical result to JUnit internal parser.
37       */
38      private static final Pattern METHOD_CLASS_PATTERN = Pattern.compile( "([\\s\\S]*)\\((.*)\\)" );
39  
40      private TestClassMethodNameUtils()
41      {
42          throw new IllegalStateException( "no instantiable constructor" );
43      }
44  
45      public static String extractClassName( String displayName )
46      {
47          Matcher m = METHOD_CLASS_PATTERN.matcher( displayName );
48          return m.matches() ? m.group( 2 ) : displayName;
49      }
50  
51      public static String extractMethodName( String displayName )
52      {
53          Matcher m = METHOD_CLASS_PATTERN.matcher( displayName );
54          return m.matches() ? m.group( 1 ) : displayName;
55      }
56  }