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1   /***
2    *  Copyright 2003-2010 Terracotta, Inc.
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  
17  package net.sf.ehcache;
18  
19  import org.junit.Test;
20  import net.sf.ehcache.store.MemoryStoreEvictionPolicy;
21  
22  import static org.junit.Assert.assertEquals;
23  
24  public class AutoVersioningElementTest {
25  
26      @Test
27      public void testVersioningCanRevertToOldBehavior() {
28          System.setProperty("net.sf.ehcache.element.version.auto", "true");
29          try {
30              CacheManager cacheManager = CacheManager.getInstance();
31              cacheManager.addCache(new Cache("mltest", 50,
32                      MemoryStoreEvictionPolicy.LRU, true, null, true, 0, 0, false, 120, null, null, 0, 2, false));
33              Cache cache = cacheManager.getCache("mltest");
34  
35              Element a = new Element("a key", "a value", 1L);
36              cache.put(a);
37              Element aAfter = cache.get("a key");
38              assertEquals(1L, aAfter.getVersion());
39  
40              Element b = new Element("a key", "a value");
41              cache.put(b);
42              Element bAfter = cache.get("a key");
43              assertEquals(bAfter.getLastUpdateTime(), bAfter.getVersion());
44  
45              Element c = new Element("a key", "a value", 3L);
46              cache.put(c);
47              Element cAfter = cache.get("a key");
48              assertEquals(cAfter.getLastUpdateTime(), cAfter.getVersion());
49          } finally {
50              System.getProperties().remove("net.sf.ehcache.element.version.auto");
51          }
52      }
53  }