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1
21 package com.db4o.db4ounit.common.assorted;
22
23 import com.db4o.ObjectSet;
24 import com.db4o.query.Query;
25
26 import db4ounit.Assert;
27 import db4ounit.extensions.AbstractDb4oTestCase;
28
29
30 public class LongLinkedListTestCase extends AbstractDb4oTestCase{
31
32 private static final int COUNT = 1000;
33
34 public static class LinkedList{
35
36 public LinkedList _next;
37
38 public int _depth;
39
40 }
41
42 private static LinkedList newLongCircularList(){
43 LinkedList head = new LinkedList();
44 LinkedList tail = head;
45 for (int i = 1; i < COUNT; i++) {
46 tail._next = new LinkedList();
47 tail = tail._next;
48 tail._depth = i;
49 }
50 tail._next = head;
51 return head;
52 }
53
54 public static void main(String  [] args) throws Exception {
55 new LongLinkedListTestCase().runSolo();
56 }
57
58 protected void store() throws Exception {
59 store(newLongCircularList());
60 }
61
62 public void test(){
63 Query q = newQuery(LinkedList.class);
64 q.descend("_depth").constrain(new Integer (0));
65 ObjectSet objectSet = q.execute();
66 Assert.areEqual(1, objectSet.size());
67 LinkedList head = (LinkedList) objectSet.next();
68 db().activate(head, Integer.MAX_VALUE);
69 assertListIsComplete(head);
70 db().deactivate(head, Integer.MAX_VALUE);
71 db().activate(head, Integer.MAX_VALUE);
72 assertListIsComplete(head);
73 db().deactivate(head, Integer.MAX_VALUE);
74 db().refresh(head, Integer.MAX_VALUE);
75 assertListIsComplete(head);
76
77
83 }
84
85 private void assertListIsComplete(LinkedList head){
86 int count = 1;
87 LinkedList tail = head._next;
88 while (tail != head){
89 count++;
90 tail = tail._next;
91 }
92 Assert.areEqual(COUNT, count);
93 }
94
95 }
96 |
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