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1
5 package com.tc.util;
6
7 import java.util.ArrayList  ;
8 import java.util.Random ;
9
10 import junit.framework.TestCase;
11
12 public class SequenceValidatorTest extends TestCase {
13
14 private static final int INITIAL_VALUE = 0;
15
16 private SequenceValidator sv;
17
18 public void setUp() throws Exception {
19 this.sv = new SequenceValidator(INITIAL_VALUE);
20 }
21
22 public void tests() throws Exception {
23
24 SequenceID one = new SequenceID(1);
25 SequenceID two = new SequenceID(2);
26 SequenceID three = new SequenceID(3);
27
28 Object key1 = new Object ();
29 Object key2 = new Object ();
30 assertEquals(0, sv.size());
31 assertTrue(sv.isNext(key1, one));
32 assertTrue(sv.isNext(key2, one));
33 assertFalse(sv.isNext(key1, two));
34 assertFalse(sv.isNext(key2, two));
35
36 sv.setCurrent(key1, one);
37
38 assertTrue(sv.isNext(key2, one));
39 assertFalse(sv.isNext(key2, two));
40 assertTrue(sv.isNext(key1, two));
41 assertFalse(sv.isNext(key1, three));
42
43 sv.remove(key1);
44 assertEquals(1, sv.size());
45 sv.remove(key2);
46 assertEquals(0, sv.size());
47 assertTrue(sv.isNext(key1, one));
48 assertTrue(sv.isNext(key2, one));
49 }
50
51 public void testSetCurrent() throws Exception {
52
53 Object key = new Object ();
54 SequenceID sid = new SequenceID(1);
55 for (int i = 0; i < 50; i++) {
56 assertTrue(sv.isNext(key, sid));
57 sv.setCurrent(key, sid);
58 sid = sid.next();
59 try {
60 sv.setCurrent(key, sid.next());
61 fail();
62 } catch (InvalidSequenceIDException er) {
63 }
65 }
66 }
67
68 public void testDisjointSequences() throws Exception {
69
70 int start = 100;
71 ArrayList sequences = createRandomSequences(start);
72
73 Object key1 = new Object ();
74
75 assertEquals(0, sv.size());
76 sv.initSequence(key1, sequences);
77
78 try {
79 sv.initSequence(key1, new ArrayList ());
80 fail("Should have thrown an Exception");
81 } catch (TCAssertionError er) {
82 }
84
85 SequenceID current = sv.getCurrent(key1);
86 assertTrue(current.toLong() == INITIAL_VALUE);
87
88 while (sequences.size() > 0) {
89 SequenceID next = new SequenceID(start);
90 if (sequences.contains(next)) {
91 assertTrue(sv.isNext(key1, next));
92 sequences.remove(next);
93 sv.setCurrent(key1, next);
94 } else {
95 assertFalse(sv.isNext(key1, next));
96 }
97 start++;
98 }
99 int i = 100;
100 while (i-- > 0) {
101 SequenceID next = new SequenceID(start);
102 assertTrue(sv.isNext(key1, next));
103 sv.setCurrent(key1, next);
104 start++;
105 }
106
107 }
108
109 private ArrayList createRandomSequences(int inital) {
110 Random r = new Random ();
111 ArrayList sequences = new ArrayList ();
112 int count = r.nextInt(100) + 1;
113 while (count-- > 0) {
114 sequences.add(new SequenceID(inital));
115 inital += r.nextInt(5) + 1;
116 }
117 return sequences;
118 }
119 }
120 |
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