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16 package org.apache.commons.lang.enum;
17
18 import java.lang.reflect.Constructor;
19 import java.lang.reflect.Modifier;
20 import java.util.Iterator;
21 import java.util.List;
22 import java.util.Map;
23
24 import junit.framework.Test;
25 import junit.framework.TestCase;
26 import junit.framework.TestSuite;
27
28
34
35 public final class EnumUtilsTest extends TestCase {
36
37 public EnumUtilsTest(String name) {
38 super(name);
39 }
40
41 public void setUp() {
42 }
43
44 public static Test suite() {
45 TestSuite suite = new TestSuite(EnumUtilsTest.class);
46 suite.setName("EnumUtils Tests");
47 return suite;
48 }
49
50 public void testConstructor() {
52 assertNotNull(new EnumUtils());
53 Constructor[] cons = EnumUtils.class.getDeclaredConstructors();
54 assertEquals(1, cons.length);
55 assertEquals(true, Modifier.isPublic(cons[0].getModifiers()));
56 assertEquals(true, Modifier.isPublic(EnumUtils.class.getModifiers()));
57 assertEquals(false, Modifier.isFinal(EnumUtils.class.getModifiers()));
58 }
59
60 public void testIterator() {
62 Iterator it = EnumUtils.iterator(ColorEnum.class);
63 assertSame(ColorEnum.RED, it.next());
64 assertSame(ColorEnum.GREEN, it.next());
65 assertSame(ColorEnum.BLUE, it.next());
66 it = EnumUtils.iterator(DummyEnum.class);
67 assertEquals(false, it.hasNext());
68 }
69
70 public void testIteratorEx() {
71 try {
72 EnumUtils.iterator(null);
73 fail();
74 } catch (IllegalArgumentException ex) {}
75 try {
76 EnumUtils.iterator(Object.class);
77 fail();
78 } catch (IllegalArgumentException ex) {}
79 }
80
81 public void testList() {
83 List list = EnumUtils.getEnumList(ColorEnum.class);
84 Iterator it = list.iterator();
85 assertSame(ColorEnum.RED, it.next());
86 assertSame(ColorEnum.GREEN, it.next());
87 assertSame(ColorEnum.BLUE, it.next());
88 list = EnumUtils.getEnumList(DummyEnum.class);
89 assertEquals(0, list.size());
90 }
91
92 public void testListEx() {
93 try {
94 EnumUtils.getEnumList(null);
95 fail();
96 } catch (IllegalArgumentException ex) {}
97 try {
98 EnumUtils.getEnumList(Object.class);
99 fail();
100 } catch (IllegalArgumentException ex) {}
101 }
102
103 public void testMap() {
105 Map map = EnumUtils.getEnumMap(ColorEnum.class);
106 assertTrue(map.containsValue(ColorEnum.RED));
107 assertTrue(map.containsValue(ColorEnum.GREEN));
108 assertTrue(map.containsValue(ColorEnum.BLUE));
109 assertSame(ColorEnum.RED, map.get("Red"));
110 assertSame(ColorEnum.GREEN, map.get("Green"));
111 assertSame(ColorEnum.BLUE, map.get("Blue"));
112 map = EnumUtils.getEnumMap(DummyEnum.class);
113 assertEquals(0, map.size());
114 }
115
116 public void testMapEx() {
117 try {
118 EnumUtils.getEnumMap(null);
119 fail();
120 } catch (IllegalArgumentException ex) {}
121 try {
122 EnumUtils.getEnumMap(Object.class);
123 fail();
124 } catch (IllegalArgumentException ex) {}
125 }
126
127 public void testGet() {
129 assertSame(ColorEnum.RED, EnumUtils.getEnum(ColorEnum.class, "Red"));
130 assertSame(ColorEnum.GREEN, EnumUtils.getEnum(ColorEnum.class, "Green"));
131 assertSame(ColorEnum.BLUE, EnumUtils.getEnum(ColorEnum.class, "Blue"));
132 assertSame(null, EnumUtils.getEnum(ColorEnum.class, "Pink"));
133 assertSame(null, EnumUtils.getEnum(DummyEnum.class, "Pink"));
134 }
135
136 public void testGetEx() {
137 try {
138 EnumUtils.getEnum(null, "");
139 fail();
140 } catch (IllegalArgumentException ex) {}
141 try {
142 EnumUtils.getEnum(Object.class, "Red");
143 fail();
144 } catch (IllegalArgumentException ex) {}
145 }
146
147 public void testGetValue() {
149 assertSame(ValuedColorEnum.RED, EnumUtils.getEnum(ValuedColorEnum.class, 1));
150 assertSame(ValuedColorEnum.GREEN, EnumUtils.getEnum(ValuedColorEnum.class, 2));
151 assertSame(ValuedColorEnum.BLUE, EnumUtils.getEnum(ValuedColorEnum.class, 3));
152 assertSame(null, EnumUtils.getEnum(ValuedColorEnum.class, 4));
153 assertSame(null, EnumUtils.getEnum(DummyEnum.class, 5));
154 }
155
156 public void testGetValueEx() {
157 try {
158 EnumUtils.getEnum(null, 0);
159 fail();
160 } catch (IllegalArgumentException ex) {}
161 try {
162 EnumUtils.getEnum(Object.class, 2);
163 fail();
164 } catch (IllegalArgumentException ex) {}
165 }
166
167 }
168 |
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