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1   package org.codehaus.plexus.util;
2   
3   import junit.framework.TestCase;
4   
5   /*
6    * Copyright 2011 The Codehaus Foundation.
7    *
8    * Licensed under the Apache License, Version 2.0 (the "License");
9    * you may not use this file except in compliance with the License.
10   * 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, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  public class PerfTest
22      extends TestCase
23  {
24  
25      String src = "012345578901234556789012345678901234456789012345678901234567890";
26  
27      private final int oops = 100;
28  
29      public void testSubString()
30      {
31          StringBuilder res = new StringBuilder();
32          int len = src.length();
33          for ( int cnt = 0; cnt < oops; cnt++ )
34          {
35              for ( int i = 0; i < len - 5; i++ )
36              {
37                  res.append( src.substring( i, i + 4 ) );
38              }
39          }
40          int i = res.length();
41          System.out.println( "i = " + i );
42      }
43  
44      public void testResDir()
45      {
46          StringBuilder res = new StringBuilder();
47          int len = src.length();
48          for ( int cnt = 0; cnt < oops; cnt++ )
49          {
50              for ( int i = 0; i < len - 5; i++ )
51              {
52                  res.append( src, i, i + 4 );
53              }
54          }
55          int i = res.length();
56          System.out.println( "i = " + i );
57      }
58  }