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

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Revision 1.11 - (show annotations)
Sat Feb 28 18:06:38 2015 UTC (4 years, 5 months ago) by jsr166
Branch: MAIN
Changes since 1.10: +8 -8 lines
narrow scope of try-catch

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/publicdomain/zero/1.0/
5 * Other contributors include Andrew Wright, Jeffrey Hayes,
6 * Pat Fisher, Mike Judd.
7 */
8
9 import java.util.AbstractQueue;
10 import java.util.Arrays;
11 import java.util.Iterator;
12 import java.util.NoSuchElementException;
13
14 import junit.framework.Test;
15 import junit.framework.TestSuite;
16
17 public class AbstractQueueTest extends JSR166TestCase {
18 public static void main(String[] args) {
19 junit.textui.TestRunner.run(suite());
20 }
21 public static Test suite() {
22 return new TestSuite(AbstractQueueTest.class);
23 }
24
25 static class Succeed extends AbstractQueue<Integer> {
26 public boolean offer(Integer x) {
27 if (x == null) throw new NullPointerException();
28 return true;
29 }
30 public Integer peek() { return one; }
31 public Integer poll() { return one; }
32 public int size() { return 0; }
33 public Iterator iterator() { return null; } // not needed
34 }
35
36 static class Fail extends AbstractQueue<Integer> {
37 public boolean offer(Integer x) {
38 if (x == null) throw new NullPointerException();
39 return false;
40 }
41 public Integer peek() { return null; }
42 public Integer poll() { return null; }
43 public int size() { return 0; }
44 public Iterator iterator() { return null; } // not needed
45 }
46
47 /**
48 * add returns true if offer succeeds
49 */
50 public void testAddS() {
51 Succeed q = new Succeed();
52 assertTrue(q.add(two));
53 }
54
55 /**
56 * add throws ISE true if offer fails
57 */
58 public void testAddF() {
59 Fail q = new Fail();
60 try {
61 q.add(one);
62 shouldThrow();
63 } catch (IllegalStateException success) {}
64 }
65
66 /**
67 * add throws NPE if offer does
68 */
69 public void testAddNPE() {
70 Succeed q = new Succeed();
71 try {
72 q.add(null);
73 shouldThrow();
74 } catch (NullPointerException success) {}
75 }
76
77 /**
78 * remove returns normally if poll succeeds
79 */
80 public void testRemoveS() {
81 Succeed q = new Succeed();
82 q.remove();
83 }
84
85 /**
86 * remove throws NSEE if poll returns null
87 */
88 public void testRemoveF() {
89 Fail q = new Fail();
90 try {
91 q.remove();
92 shouldThrow();
93 } catch (NoSuchElementException success) {}
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 Succeed q = new Succeed();
120 try {
121 q.addAll(null);
122 shouldThrow();
123 } catch (NullPointerException success) {}
124 }
125
126 /**
127 * addAll(this) throws IAE
128 */
129 public void testAddAllSelf() {
130 Succeed q = new Succeed();
131 try {
132 q.addAll(q);
133 shouldThrow();
134 } catch (IllegalArgumentException success) {}
135 }
136
137 /**
138 * addAll of a collection with null elements throws NPE
139 */
140 public void testAddAll2() {
141 Succeed q = new Succeed();
142 Integer[] ints = new Integer[SIZE];
143 try {
144 q.addAll(Arrays.asList(ints));
145 shouldThrow();
146 } catch (NullPointerException success) {}
147 }
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 Succeed q = new Succeed();
155 Integer[] ints = new Integer[SIZE];
156 for (int i = 0; i < SIZE-1; ++i)
157 ints[i] = new Integer(i);
158 try {
159 q.addAll(Arrays.asList(ints));
160 shouldThrow();
161 } catch (NullPointerException success) {}
162 }
163
164 /**
165 * addAll throws ISE if an add fails
166 */
167 public void testAddAll4() {
168 try {
169 Fail q = new Fail();
170 Integer[] ints = new Integer[SIZE];
171 for (int i = 0; i < SIZE; ++i)
172 ints[i] = new Integer(i);
173 q.addAll(Arrays.asList(ints));
174 shouldThrow();
175 } catch (IllegalStateException success) {}
176 }
177
178 }

dl@cs.oswego.edu
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