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16 package org.apache.commons.collections.keyvalue;
17
18 import java.util.Arrays  ;
19
20 import junit.framework.Assert;
21 import junit.framework.Test;
22 import junit.framework.TestCase;
23 import junit.framework.TestSuite;
24
25
32 public class TestMultiKey extends TestCase {
33
34 Integer ONE = new Integer (1);
35 Integer TWO = new Integer (2);
36 Integer THREE = new Integer (3);
37 Integer FOUR = new Integer (4);
38 Integer FIVE = new Integer (5);
39
40 public TestMultiKey(String name) {
41 super(name);
42 }
43
44 public static Test suite() {
45 return new TestSuite(TestMultiKey.class);
46 }
47
48 public static void main(String [] args) {
49 String [] testCaseName = { TestMultiKey.class.getName() };
50 junit.textui.TestRunner.main(testCaseName);
51 }
52
53 public void setUp() throws Exception {
54 super.setUp();
55 }
56
57 protected void tearDown() throws Exception {
58 super.tearDown();
59 }
60
61 public void testConstructors() throws Exception {
63 MultiKey mk = null;
64 mk = new MultiKey(ONE, TWO);
65 Assert.assertTrue(Arrays.equals(new Object [] {ONE, TWO}, mk.getKeys()));
66
67 mk = new MultiKey(ONE, TWO, THREE);
68 Assert.assertTrue(Arrays.equals(new Object [] {ONE, TWO, THREE}, mk.getKeys()));
69
70 mk = new MultiKey(ONE, TWO, THREE, FOUR);
71 Assert.assertTrue(Arrays.equals(new Object [] {ONE, TWO, THREE, FOUR}, mk.getKeys()));
72
73 mk = new MultiKey(ONE, TWO, THREE, FOUR, FIVE);
74 Assert.assertTrue(Arrays.equals(new Object [] {ONE, TWO, THREE, FOUR, FIVE}, mk.getKeys()));
75
76 mk = new MultiKey(new Object [] {THREE, FOUR, ONE, TWO}, false);
77 Assert.assertTrue(Arrays.equals(new Object [] {THREE, FOUR, ONE, TWO}, mk.getKeys()));
78 }
79
80 public void testConstructorsByArray() throws Exception {
81 MultiKey mk = null;
82 Object [] keys = new Object [] {THREE, FOUR, ONE, TWO};
83 mk = new MultiKey(keys);
84 Assert.assertTrue(Arrays.equals(new Object [] {THREE, FOUR, ONE, TWO}, mk.getKeys()));
85 keys[3] = FIVE; Assert.assertTrue(Arrays.equals(new Object [] {THREE, FOUR, ONE, TWO}, mk.getKeys()));
87
88 keys = new Object [] {};
89 mk = new MultiKey(keys);
90 Assert.assertTrue(Arrays.equals(new Object [] {}, mk.getKeys()));
91
92 keys = new Object [] {THREE, FOUR, ONE, TWO};
93 mk = new MultiKey(keys, true);
94 Assert.assertTrue(Arrays.equals(new Object [] {THREE, FOUR, ONE, TWO}, mk.getKeys()));
95 keys[3] = FIVE; Assert.assertTrue(Arrays.equals(new Object [] {THREE, FOUR, ONE, TWO}, mk.getKeys()));
97
98 keys = new Object [] {THREE, FOUR, ONE, TWO};
99 mk = new MultiKey(keys, false);
100 Assert.assertTrue(Arrays.equals(new Object [] {THREE, FOUR, ONE, TWO}, mk.getKeys()));
101 keys[3] = FIVE;
104 Assert.assertTrue(Arrays.equals(new Object [] {THREE, FOUR, ONE, FIVE}, mk.getKeys()));
105 }
106
107 public void testConstructorsByArrayNull() throws Exception {
108 Object [] keys = null;
109 try {
110 new MultiKey(keys);
111 fail();
112 } catch (IllegalArgumentException ex) {}
113 try {
114 new MultiKey(keys, true);
115 fail();
116 } catch (IllegalArgumentException ex) {}
117 try {
118 new MultiKey(keys, false);
119 fail();
120 } catch (IllegalArgumentException ex) {}
121 }
122
123 public void testSize() {
124 Assert.assertEquals(2, new MultiKey(ONE, TWO).size());
125 Assert.assertEquals(2, new MultiKey(null, null).size());
126 Assert.assertEquals(3, new MultiKey(ONE, TWO, THREE).size());
127 Assert.assertEquals(3, new MultiKey(null, null, null).size());
128 Assert.assertEquals(4, new MultiKey(ONE, TWO, THREE, FOUR).size());
129 Assert.assertEquals(4, new MultiKey(null, null, null, null).size());
130 Assert.assertEquals(5, new MultiKey(ONE, TWO, THREE, FOUR, FIVE).size());
131 Assert.assertEquals(5, new MultiKey(null, null, null, null, null).size());
132
133 Assert.assertEquals(0, new MultiKey(new Object [] {}).size());
134 Assert.assertEquals(1, new MultiKey(new Object [] {ONE}).size());
135 Assert.assertEquals(2, new MultiKey(new Object [] {ONE, TWO}).size());
136 Assert.assertEquals(7, new MultiKey(new Object [] {ONE, TWO, ONE, TWO, ONE, TWO, ONE}).size());
137 }
138
139 public void testGetIndexed() {
140 MultiKey mk = new MultiKey(ONE, TWO);
141 Assert.assertSame(ONE, mk.getKey(0));
142 Assert.assertSame(TWO, mk.getKey(1));
143 try {
144 mk.getKey(-1);
145 fail();
146 } catch (IndexOutOfBoundsException ex) {}
147 try {
148 mk.getKey(2);
149 fail();
150 } catch (IndexOutOfBoundsException ex) {}
151 }
152
153 public void testGetKeysSimpleConstructor() {
154 MultiKey mk = new MultiKey(ONE, TWO);
155 Object [] array = mk.getKeys();
156 Assert.assertSame(ONE, array[0]);
157 Assert.assertSame(TWO, array[1]);
158 Assert.assertEquals(2, array.length);
159 }
160
161 public void testGetKeysArrayConstructorCloned() {
162 Object [] keys = new Object [] {ONE, TWO};
163 MultiKey mk = new MultiKey(keys, true);
164 Object [] array = mk.getKeys();
165 Assert.assertTrue(array != keys);
166 Assert.assertTrue(Arrays.equals(array, keys));
167 Assert.assertSame(ONE, array[0]);
168 Assert.assertSame(TWO, array[1]);
169 Assert.assertEquals(2, array.length);
170 }
171
172 public void testGetKeysArrayConstructorNonCloned() {
173 Object [] keys = new Object [] {ONE, TWO};
174 MultiKey mk = new MultiKey(keys, false);
175 Object [] array = mk.getKeys();
176 Assert.assertTrue(array != keys); Assert.assertTrue(Arrays.equals(array, keys));
178 Assert.assertSame(ONE, array[0]);
179 Assert.assertSame(TWO, array[1]);
180 Assert.assertEquals(2, array.length);
181 }
182
183 public void testHashCode() {
184 MultiKey mk1 = new MultiKey(ONE, TWO);
185 MultiKey mk2 = new MultiKey(ONE, TWO);
186 MultiKey mk3 = new MultiKey(ONE, "TWO");
187
188 Assert.assertTrue(mk1.hashCode() == mk1.hashCode());
189 Assert.assertTrue(mk1.hashCode() == mk2.hashCode());
190 Assert.assertTrue(mk1.hashCode() != mk3.hashCode());
191
192 int total = (0 ^ ONE.hashCode()) ^ TWO.hashCode();
193 Assert.assertEquals(total, mk1.hashCode());
194 }
195
196 public void testEquals() {
197 MultiKey mk1 = new MultiKey(ONE, TWO);
198 MultiKey mk2 = new MultiKey(ONE, TWO);
199 MultiKey mk3 = new MultiKey(ONE, "TWO");
200
201 Assert.assertEquals(mk1, mk1);
202 Assert.assertEquals(mk1, mk2);
203 Assert.assertTrue(mk1.equals(mk3) == false);
204 Assert.assertTrue(mk1.equals("") == false);
205 Assert.assertTrue(mk1.equals(null) == false);
206 }
207
208 }
209 |
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