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Java > Open Source Codes > jodd > util > StackQueueTest


1 // Copyright (c) 2003-2007, Jodd Team (jodd.sf.net). All Rights Reserved.
2
3 package jodd.util;
4
5 import junit.framework.TestCase;
6 import jodd.util.collection.SimpleQueue;
7 import jodd.util.collection.SimpleStack;
8
9 public class StackQueueTest extends TestCase {
10
11     public void testQueue() {
12         SimpleQueue sq = new SimpleQueue();
13         assertEquals(0, sq.size());
14         sq.put("Hallo!"); // first in
15 assertEquals(1, sq.size());
16         sq.put("Tschuss!");
17         assertEquals(2, sq.size());
18         sq.put("End");
19         assertEquals(3, sq.size());
20         assertEquals("Hallo!", sq.get()); // first out
21 assertEquals(2, sq.size());
22         assertEquals("Tschuss!", sq.peek());
23         assertEquals(2, sq.size());
24         assertEquals("Tschuss!", sq.get());
25         assertEquals(1, sq.size());
26         assertFalse(sq.isEmpty());
27         assertEquals("End", sq.get());
28         assertEquals(0, sq.size());
29         assertTrue(sq.isEmpty());
30     }
31
32     public void testStack() {
33         SimpleStack ss = new SimpleStack();
34         assertEquals(0, ss.size());
35         ss.push("Start");
36         assertEquals(1, ss.size());
37         ss.push("Hallo!");
38         assertEquals(2, ss.size());
39         ss.push("Tschuss!"); // last in
40 assertEquals(3, ss.size());
41         assertEquals("Tschuss!", ss.pop()); // first out
42 assertEquals(2, ss.size());
43         assertEquals("Hallo!", ss.peek());
44         assertEquals(2, ss.size());
45         assertEquals("Hallo!", ss.pop());
46         assertEquals(1, ss.size());
47         assertFalse(ss.isEmpty());
48         assertEquals("Start", ss.pop());
49         assertEquals(0, ss.size());
50         assertTrue(ss.isEmpty());
51     }
52
53 }
54
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