1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.vfs.cache;
18  
19  import org.apache.commons.vfs.FileObject;
20  import org.apache.commons.vfs.test.AbstractProviderTestCase;
21  
22  /***
23   * NullFilesCache
24   * 
25   * @author <a href="mailto:imario@apache.org">Mario Ivankovits</a>
26   * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
27   */
28  public class LRUFilesCacheTests extends AbstractProviderTestCase
29  {
30      public void testFilesCache() throws Exception
31      {
32          FileObject scratchFolder = getWriteFolder();
33  
34          // releaseable
35          FileObject dir1 = scratchFolder.resolveFile("dir1");
36  
37          // avoid cache removal
38          FileObject dir2 = scratchFolder.resolveFile("dir2");
39          dir2.getContent();
40  
41          // releaseable
42          FileObject dir3 = scratchFolder.resolveFile("dir3");
43  
44          // releaseable
45          FileObject dir4 = scratchFolder.resolveFile("dir4");
46  
47          // releaseable
48          FileObject dir5 = scratchFolder.resolveFile("dir5");
49  
50          // releaseable
51          FileObject dir6 = scratchFolder.resolveFile("dir6");
52  
53          // releaseable
54          FileObject dir7 = scratchFolder.resolveFile("dir7");
55  
56          // releaseable
57          FileObject dir8 = scratchFolder.resolveFile("dir8");
58  
59          // check if the cache still holds the right instance
60          FileObject dir2_2 = scratchFolder.resolveFile("dir2");
61          assertTrue(dir2 == dir2_2);
62  
63          // check if the cache still holds the right instance
64          FileObject dir1_2 = scratchFolder.resolveFile("dir1");
65          assertFalse(dir1 == dir1_2);
66      }
67  }