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Java > Open Source Codes > org > apache > commons > vfs > cache > LRUFilesCacheTests


1 /*
2  * Copyright 2002-2005 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.commons.vfs.cache;
17
18 import org.apache.commons.vfs.FileObject;
19 import org.apache.commons.vfs.test.AbstractProviderTestCase;
20
21 /**
22  * NullFilesCache
23  *
24  * @author <a HREF="mailto:imario@apache.org">Mario Ivankovits</a>
25  */
26 public class LRUFilesCacheTests extends AbstractProviderTestCase
27 {
28     public void testFilesCache() throws Exception JavaDoc
29     {
30         FileObject scratchFolder = getWriteFolder();
31
32         // releaseable
33 FileObject dir1 = scratchFolder.resolveFile("dir1");
34
35         // avoid cache removal
36 FileObject dir2 = scratchFolder.resolveFile("dir2");
37         dir2.getContent();
38
39         // releaseable
40 FileObject dir3 = scratchFolder.resolveFile("dir3");
41
42         // releaseable
43 FileObject dir4 = scratchFolder.resolveFile("dir4");
44
45         // releaseable
46 FileObject dir5 = scratchFolder.resolveFile("dir5");
47
48         // releaseable
49 FileObject dir6 = scratchFolder.resolveFile("dir6");
50
51         // releaseable
52 FileObject dir7 = scratchFolder.resolveFile("dir7");
53
54         // releaseable
55 FileObject dir8 = scratchFolder.resolveFile("dir8");
56
57         // check if the cache still holds the right instance
58 FileObject dir2_2 = scratchFolder.resolveFile("dir2");
59         assertTrue(dir2 == dir2_2);
60
61         // check if the cache still holds the right instance
62 FileObject dir1_2 = scratchFolder.resolveFile("dir1");
63         assertFalse(dir1 == dir1_2);
64     }
65 }
66
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