/[cvs]/jsr166/src/test/tck/AbstractQueueTest.java
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Contents of /jsr166/src/test/tck/AbstractQueueTest.java

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Revision 1.4 - (show annotations)
Wed Aug 25 00:07:02 2010 UTC (8 years, 11 months ago) by jsr166
Branch: MAIN
Changes since 1.3: +1 -1 lines
whitespace

1 /*
2 * Written by Doug Lea with assistance from members of JCP JSR-166
3 * Expert Group and released to the public domain, as explained at
4 * http://creativecommons.org/licenses/publicdomain
5 * Other contributors include Andrew Wright, Jeffrey Hayes,
6 * Pat Fisher, Mike Judd.
7 */
8
9
10 import junit.framework.*;
11 import java.util.*;
12 import java.util.concurrent.*;
13 import java.util.concurrent.locks.*;
14 import java.io.*;
15
16 public class AbstractQueueTest extends JSR166TestCase {
17 public static void main(String[] args) {
18 junit.textui.TestRunner.run(suite());
19 }
20 public static Test suite() {
21 return new TestSuite(AbstractQueueTest.class);
22 }
23
24 static class Succeed extends AbstractQueue<Integer> {
25 public boolean offer(Integer x) {
26 if (x == null) throw new NullPointerException();
27 return true;
28 }
29 public Integer peek() { return one; }
30 public Integer poll() { return one; }
31 public int size() { return 0; }
32 public Iterator iterator() { return null; } // not needed
33 }
34
35 static class Fail extends AbstractQueue<Integer> {
36 public boolean offer(Integer x) {
37 if (x == null) throw new NullPointerException();
38 return false;
39 }
40 public Integer peek() { return null; }
41 public Integer poll() { return null; }
42 public int size() { return 0; }
43 public Iterator iterator() { return null; } // not needed
44 }
45
46 /**
47 * add returns true if offer succeeds
48 */
49 public void testAddS() {
50 Succeed q = new Succeed();
51 assertTrue(q.add(two));
52 }
53
54 /**
55 * add throws ISE true if offer fails
56 */
57 public void testAddF() {
58 Fail q = new Fail();
59 try {
60 q.add(one);
61 shouldThrow();
62 } catch (IllegalStateException success) {}
63 }
64
65 /**
66 * add throws NPE if offer does
67 */
68 public void testAddNPE() {
69 Succeed q = new Succeed();
70 try {
71 q.add(null);
72 shouldThrow();
73 } catch (NullPointerException success) {}
74 }
75
76 /**
77 * remove returns normally if poll succeeds
78 */
79 public void testRemoveS() {
80 Succeed q = new Succeed();
81 q.remove();
82 }
83
84 /**
85 * remove throws NSEE if poll returns null
86 */
87 public void testRemoveF() {
88 Fail q = new Fail();
89 try {
90 q.remove();
91 shouldThrow();
92 } catch (NoSuchElementException success) {}
93 }
94
95
96 /**
97 * element returns normally if peek succeeds
98 */
99 public void testElementS() {
100 Succeed q = new Succeed();
101 q.element();
102 }
103
104 /**
105 * element throws NSEE if peek returns null
106 */
107 public void testElementF() {
108 Fail q = new Fail();
109 try {
110 q.element();
111 shouldThrow();
112 } catch (NoSuchElementException success) {}
113 }
114
115 /**
116 * addAll(null) throws NPE
117 */
118 public void testAddAll1() {
119 try {
120 Succeed q = new Succeed();
121 q.addAll(null);
122 shouldThrow();
123 } catch (NullPointerException success) {}
124 }
125
126 /**
127 * addAll(this) throws IAE
128 */
129 public void testAddAllSelf() {
130 try {
131 Succeed q = new Succeed();
132 q.addAll(q);
133 shouldThrow();
134 } catch (IllegalArgumentException success) {}
135 }
136
137
138 /**
139 * addAll of a collection with null elements throws NPE
140 */
141 public void testAddAll2() {
142 try {
143 Succeed q = new Succeed();
144 Integer[] ints = new Integer[SIZE];
145 q.addAll(Arrays.asList(ints));
146 shouldThrow();
147 } catch (NullPointerException success) {}
148 }
149 /**
150 * addAll of a collection with any null elements throws NPE after
151 * possibly adding some elements
152 */
153 public void testAddAll3() {
154 try {
155 Succeed q = new Succeed();
156 Integer[] ints = new Integer[SIZE];
157 for (int i = 0; i < SIZE-1; ++i)
158 ints[i] = new Integer(i);
159 q.addAll(Arrays.asList(ints));
160 shouldThrow();
161 } catch (NullPointerException success) {}
162 }
163 /**
164 * addAll throws ISE if an add fails
165 */
166 public void testAddAll4() {
167 try {
168 Fail q = new Fail();
169 Integer[] ints = new Integer[SIZE];
170 for (int i = 0; i < SIZE; ++i)
171 ints[i] = new Integer(i);
172 q.addAll(Arrays.asList(ints));
173 shouldThrow();
174 } catch (IllegalStateException success) {}
175 }
176
177 }

dl@cs.oswego.edu
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