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21 package org.apache.struts2.json;
22
23 import java.util.Map;
24
25 import junit.framework.TestCase;
26
27 /***
28 * Test serialization of an Enum in the two supported modes: - Enum as a
29 * name=value pair; - Enum as a bean
30 */
31 public class JSONEnumTest extends TestCase {
32
33 /***
34 * Asserts that a bean can be serialized to JSON and restored as a map
35 */
36 public void testEnumAsNameValue() throws Exception {
37 Bean bean1 = new Bean();
38
39 bean1.setStringField("str");
40 bean1.setBooleanField(true);
41 bean1.setCharField('s');
42 bean1.setDoubleField(10.1);
43 bean1.setFloatField(1.5f);
44 bean1.setIntField(10);
45 bean1.setLongField(100);
46 bean1.setEnumField(AnEnum.ValueA);
47 bean1.setEnumBean(AnEnumBean.Two);
48
49 JSONWriter jsonWriter = new JSONWriter();
50 jsonWriter.setEnumAsBean(false);
51 String json = jsonWriter.write(bean1);
52
53 Map result = (Map) JSONUtil.deserialize(json);
54 assertEquals("str", result.get("stringField"));
55 assertEquals(true, result.get("booleanField"));
56 assertEquals("s", result.get("charField"));
57
58 assertEquals(10.1, result.get("doubleField"));
59 assertEquals(1.5, result.get("floatField"));
60
61 assertEquals(10L, result.get("intField"));
62
63 assertEquals(AnEnum.ValueA, AnEnum.valueOf((String) result.get("enumField")));
64
65
66
67 assertEquals(AnEnumBean.Two, AnEnumBean.valueOf((String) result.get("enumBean")));
68
69
70
71 }
72
73 /***
74 * Asserts that a bean can be serialized to JSON and restored as a map <p/>
75 * In this case, the name of the enum is in _name and the two properties of
76 * AnEnumBean are also serialized
77 */
78 public void testEnumAsBean() throws Exception {
79 Bean bean1 = new Bean();
80
81 bean1.setStringField("str");
82 bean1.setBooleanField(true);
83 bean1.setCharField('s');
84 bean1.setDoubleField(10.1);
85 bean1.setFloatField(1.5f);
86 bean1.setIntField(10);
87 bean1.setLongField(100);
88 bean1.setEnumField(AnEnum.ValueA);
89 bean1.setEnumBean(AnEnumBean.Two);
90
91 JSONWriter jsonWriter = new JSONWriter();
92 jsonWriter.setEnumAsBean(true);
93 String json = jsonWriter.write(bean1);
94
95 Map result = (Map) JSONUtil.deserialize(json);
96 assertEquals("str", result.get("stringField"));
97 assertEquals(true, result.get("booleanField"));
98 assertEquals("s", result.get("charField"));
99
100 assertEquals(10.1, result.get("doubleField"));
101 assertEquals(1.5, result.get("floatField"));
102
103 assertEquals(10L, result.get("intField"));
104
105 Map enumBean1 = (Map) result.get("enumField");
106 assertNotNull(enumBean1);
107 assertEquals(AnEnum.ValueA, AnEnum.valueOf((String) enumBean1.get("_name")));
108
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112 Map enumBean2 = (Map) result.get("enumBean");
113 assertEquals(AnEnumBean.Two, AnEnumBean.valueOf((String) enumBean2.get("_name")));
114
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118 assertEquals(AnEnumBean.Two.getPropA(), (String) enumBean2.get("propA"));
119
120
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122 assertEquals(AnEnumBean.Two.getPropB(), (String) enumBean2.get("propB"));
123
124
125
126 }
127 }