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1 package com.tirsen.nanning.samples.prevayler;
2
3 import com.tirsen.nanning.samples.prevayler.BasicIdentifyingSystem;
4 import com.tirsen.nanning.test.TestUtils;
5 import junit.framework.TestCase;
6
7 public class BasicIdentifyingSystemGCTest extends TestCase {
8 private BasicIdentifyingSystem basicIdentifyingSystem;
9 private String  registredObject;
10
11 protected void setUp() throws Exception {
12 super.setUp();
13
14 basicIdentifyingSystem = new BasicIdentifyingSystem();
15 registredObject = "BombingObject";
16 for (int i = 0; i < 1024; i++) {
17 registredObject += "I'm big";
18 }
19 CurrentPrevayler.enterTransaction();
20 basicIdentifyingSystem.registerObjectID(registredObject);
21 CurrentPrevayler.exitTransaction();
22 }
23
24 public void testGarbageCollection() {
25 long objectID = basicIdentifyingSystem.getObjectID(registredObject);
26 assertTrue(basicIdentifyingSystem.isIDRegistered(objectID));
27 registredObject = null;
28
29 TestUtils.gc();
30
31 assertFalse("this test uses a trick to provoke a garbage collect of a specific object, " +
32 "in some situations it fails even if it's not necessarily an error",
33 basicIdentifyingSystem.isIDRegistered(objectID));
34 assertTrue(basicIdentifyingSystem.hasNoRegisteredObjects());
35 }
36 }
37 |
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