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root/jsr166/jsr166/src/test/tck/EntryTest.java
Revision: 1.1
Committed: Sat Oct 1 17:05:38 2005 UTC (18 years, 7 months ago) by dl
Branch: MAIN
Log Message: 
Simple tests for SimpleEntry

File Contents

# Content
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 */
6
7 import junit.framework.*;
8 import java.util.*;
9 import java.util.concurrent.*;
10 import java.io.*;
11
12 public class EntryTest extends JSR166TestCase {
13 public static void main(String[] args) {
14 junit.textui.TestRunner.run (suite());
15 }
16 public static Test suite() {
17 return new TestSuite(EntryTest.class);
18 }
19
20 static final String k1 = "1";
21 static final String v1 = "a";
22 static final String k2 = "2";
23 static final String v2 = "b";
24
25
26 /**
27 * A new SimpleEntry(k, v) holds k, v.
28 */
29 public void testConstructor1() {
30 Map.Entry e = new AbstractMap.SimpleEntry(k1, v1);
31 assertEquals(k1, e.getKey());
32 assertEquals(v1, e.getValue());
33 }
34
35 /**
36 * A new SimpleImmutableEntry(k, v) holds k, v.
37 */
38 public void testConstructor2() {
39 Map.Entry s = new AbstractMap.SimpleImmutableEntry(k1, v1);
40 assertEquals(k1, s.getKey());
41 assertEquals(v1, s.getValue());
42 }
43
44
45 /**
46 * A new SimpleEntry(entry(k, v)) holds k, v.
47 */
48 public void testConstructor3() {
49 Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
50 Map.Entry e = new AbstractMap.SimpleEntry(e2);
51 assertEquals(k1, e.getKey());
52 assertEquals(v1, e.getValue());
53 }
54
55 /**
56 * A new SimpleImmutableEntry(entry(k, v)) holds k, v.
57 */
58 public void testConstructor4() {
59 Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
60 Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2);
61 assertEquals(k1, s.getKey());
62 assertEquals(v1, s.getValue());
63 }
64
65 /**
66 * Entries with same key-value pairs are equal and have same
67 * hashcodes
68 */
69 public void testEquals() {
70 Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
71 Map.Entry e = new AbstractMap.SimpleEntry(e2);
72 Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
73 Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2);
74 assertEquals(e2, e);
75 assertEquals(e2.hashCode(), e.hashCode());
76 assertEquals(s2, s);
77 assertEquals(s2.hashCode(), s.hashCode());
78 assertEquals(e2, s2);
79 assertEquals(e2.hashCode(), s2.hashCode());
80 assertEquals(e, s);
81 assertEquals(e.hashCode(), s.hashCode());
82 }
83
84 /**
85 * Entries with different key-value pairs are not equal
86 */
87 public void testNotEquals() {
88 Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
89 Map.Entry e = new AbstractMap.SimpleEntry(k2, v1);
90 assertFalse(e2.equals( e));
91 e = new AbstractMap.SimpleEntry(k1, v2);
92 assertFalse(e2.equals( e));
93 e = new AbstractMap.SimpleEntry(k2, v2);
94 assertFalse(e2.equals( e));
95
96 Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
97 Map.Entry s = new AbstractMap.SimpleImmutableEntry(k2, v1);
98 assertFalse(s2.equals( s));
99 s = new AbstractMap.SimpleImmutableEntry(k1, v2);
100 assertFalse(s2.equals( s));
101 s = new AbstractMap.SimpleImmutableEntry(k2, v2);
102 assertFalse(s2.equals( s));
103 }
104
105
106 /**
107 * getValue returns last setValue for SimpleEntry
108 */
109 public void testSetValue1() {
110 Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
111 Map.Entry e = new AbstractMap.SimpleEntry(e2);
112 assertEquals(k1, e.getKey());
113 assertEquals(v1, e.getValue());
114 e.setValue(k2);
115 assertEquals(k2, e.getValue());
116 assertFalse(e2.equals( e));
117 }
118
119 /**
120 * setValue for SimpleImmutableEntry throws UnsupportedOperationException
121 */
122 public void testsetValue2() {
123 Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
124 Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2);
125 assertEquals(k1, s.getKey());
126 assertEquals(v1, s.getValue());
127 try {
128 s.setValue(k2);
129 fail();
130 } catch (UnsupportedOperationException success) {}
131 }
132 }