plugins/json/src/test/java/org/apache/struts2/json/DefaultJSONWriterTest.java

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 * 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
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 */
package org.apache.struts2.json;

import org.apache.struts2.StrutsTestCase;
import org.apache.struts2.json.annotations.JSONFieldBridge;
import org.apache.struts2.json.bridge.StringBridge;
import org.apache.struts2.util.TestUtils;
import org.junit.Test;

import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;

public class DefaultJSONWriterTest extends StrutsTestCase{
    @Test
    public void testWrite() 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 DefaultJSONWriter();
        jsonWriter.setEnumAsBean(false);
        String json = jsonWriter.write(bean1);
        TestUtils.assertEquals(DefaultJSONWriter.class.getResource("jsonwriter-write-bean-01.txt"), json);
    }

    @Test
    public void testWriteExcludeNull() throws Exception {
        BeanWithMap bean1=new BeanWithMap();
        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);

        Map m = new LinkedHashMap();
        m.put("a", "x");
        m.put("b", null);
        m.put("c", "z");
        bean1.setMap(m);

        JSONWriter jsonWriter = new DefaultJSONWriter();
        jsonWriter.setEnumAsBean(false);
        jsonWriter.setIgnoreHierarchy(false);
        String json = jsonWriter.write(bean1, null, null, true);
        TestUtils.assertEquals(DefaultJSONWriter.class.getResource("jsonwriter-write-bean-03.txt"), json);
    }

    private class BeanWithMap extends Bean{
        private Map map;

        public Map getMap() {
            return map;
        }

        public void setMap(Map map) {
            this.map = map;
        }
    }

    @Test
    public void testWriteAnnotatedBean() throws Exception {
        AnnotatedBean bean1=new AnnotatedBean();
        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);
        bean1.setUrl(new URL("http://www.google.com"));

        JSONWriter jsonWriter = new DefaultJSONWriter();
        jsonWriter.setEnumAsBean(false);
        jsonWriter.setIgnoreHierarchy(false);
        String json = jsonWriter.write(bean1);
        TestUtils.assertEquals(DefaultJSONWriter.class.getResource("jsonwriter-write-bean-02.txt"), json);
    }

    @Test
    public void testWriteBeanWithList() throws Exception {
        BeanWithList bean1 = new BeanWithList();
        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);
        List<String> errors = new ArrayList<String>();
        errors.add("Field is required");
        bean1.setErrors(errors);

        JSONWriter jsonWriter = new DefaultJSONWriter();
        jsonWriter.setEnumAsBean(false);
        jsonWriter.setIgnoreHierarchy(false);
        String json = jsonWriter.write(bean1);
        TestUtils.assertEquals(DefaultJSONWriter.class.getResource("jsonwriter-write-bean-04.txt"), json);
    }

    private class BeanWithList extends Bean {
        private List<String> errors;

        public List<String> getErrors() {
            return errors;
        }

        public void setErrors(List<String> errors) {
            this.errors = errors;
        }
    }

    private class AnnotatedBean extends Bean{
        private URL url;

        @JSONFieldBridge(impl = StringBridge.class)
        public URL getUrl() {
            return url;
        }

        public void setUrl(URL url) {
            this.url = url;
        }
    }

    @Test
    public void testCanSerializeADate() throws Exception {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z");

        SingleDateBean dateBean = new SingleDateBean();
        dateBean.setDate(sdf.parse("2012-12-23 10:10:10 GMT"));

        JSONWriter jsonWriter = new DefaultJSONWriter();
        jsonWriter.setEnumAsBean(false);

        TimeZone.setDefault(TimeZone.getTimeZone("GMT"));
        String json = jsonWriter.write(dateBean);
        assertEquals("{\"date\":\"2012-12-23T10:10:10\"}", json);
    }

    @Test
    public void testCanSetDefaultDateFormat() throws Exception {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z");

        SingleDateBean dateBean = new SingleDateBean();
        dateBean.setDate(sdf.parse("2012-12-23 10:10:10 GMT"));

        JSONWriter jsonWriter = new DefaultJSONWriter();
        jsonWriter.setEnumAsBean(false);
        jsonWriter.setDateFormatter("MM-dd-yyyy");
        String json = jsonWriter.write(dateBean);
        assertEquals("{\"date\":\"12-23-2012\"}", json);
    }

}