/*
* $Id$
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.struts2.json;
import java.util.Map;
import junit.framework.TestCase;
/**
* Test serialization of an Enum in the two supported modes: - Enum as a
* name=value pair; - Enum as a bean
*/
public class JSONEnumTest extends TestCase {
/**
* Asserts that a bean can be serialized to JSON and restored as a map
*/
public void testEnumAsNameValue() throws Exception {
Bean bean1 = new Bean();
bean1.setStringField("str");
bean1.setBooleanField(true);
bean1.setCharField('s');
bean1.setDoubleField(10.1);
bean1.setFloatField(1.5f);
bean1.setIntField(10);
bean1.setLongField(100);
bean1.setEnumField(AnEnum.ValueA);
bean1.setEnumBean(AnEnumBean.Two);
JSONWriter jsonWriter = new JSONWriter();
jsonWriter.setEnumAsBean(false);
String json = jsonWriter.write(bean1);
Map result = (Map) JSONUtil.deserialize(json);
assertEquals("str", result.get("stringField"));
assertEquals(true, result.get("booleanField"));
assertEquals("s", result.get("charField")); // note: this is a
// String
assertEquals(10.1, result.get("doubleField"));
assertEquals(1.5, result.get("floatField")); // note: this is a
// Double
assertEquals(10L, result.get("intField")); // note: this is a
// Long
assertEquals(AnEnum.ValueA, AnEnum.valueOf((String) result.get("enumField"))); // note:
// this
// is a
// String
assertEquals(AnEnumBean.Two, AnEnumBean.valueOf((String) result.get("enumBean"))); // note:
// this
// is a
// String
}
/**
* Asserts that a bean can be serialized to JSON and restored as a map <p/>
* In this case, the name of the enum is in _name and the two properties of
* AnEnumBean are also serialized
*/
public void testEnumAsBean() throws Exception {
Bean bean1 = new Bean();
bean1.setStringField("str");
bean1.setBooleanField(true);
bean1.setCharField('s');
bean1.setDoubleField(10.1);
bean1.setFloatField(1.5f);
bean1.setIntField(10);
bean1.setLongField(100);
bean1.setEnumField(AnEnum.ValueA);
bean1.setEnumBean(AnEnumBean.Two);
JSONWriter jsonWriter = new JSONWriter();
jsonWriter.setEnumAsBean(true);
String json = jsonWriter.write(bean1);
Map result = (Map) JSONUtil.deserialize(json);
assertEquals("str", result.get("stringField"));
assertEquals(true, result.get("booleanField"));
assertEquals("s", result.get("charField")); // note: this is a
// String
assertEquals(10.1, result.get("doubleField"));
assertEquals(1.5, result.get("floatField")); // note: this is a
// Double
assertEquals(10L, result.get("intField")); // note: this is a
// Long
Map enumBean1 = (Map) result.get("enumField");
assertNotNull(enumBean1);
assertEquals(AnEnum.ValueA, AnEnum.valueOf((String) enumBean1.get("_name"))); // get
// the
// special
// name
// property
Map enumBean2 = (Map) result.get("enumBean");
assertEquals(AnEnumBean.Two, AnEnumBean.valueOf((String) enumBean2.get("_name"))); // get
// the
// special
// name
// property
assertEquals(AnEnumBean.Two.getPropA(), (String) enumBean2.get("propA")); // get
// the
// propA
// property
assertEquals(AnEnumBean.Two.getPropB(), (String) enumBean2.get("propB")); // get
// the
// propA
// property
}
}