dubbo-common/src/test/java/com/alibaba/dubbo/common/json/JSONWriterTest.java

/*
 * Copyright 1999-2011 Alibaba Group.
 *  
 * Licensed 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 com.alibaba.dubbo.common.json;

import java.io.StringWriter;

import junit.framework.TestCase;

public class JSONWriterTest extends TestCase
{
	public void testWriteJson() throws Exception
	{
		StringWriter w = new StringWriter();
		JSONWriter writer = new JSONWriter(w);

		writer.valueNull();
		assertEquals(w.getBuffer().toString(), "null");

		// write array.
		w.getBuffer().setLength(0);
		writer.arrayBegin().valueNull().valueBoolean(false).valueInt(16).arrayEnd();
		assertEquals(w.getBuffer().toString(),"[null,false,16]");

		// write object.
		w.getBuffer().setLength(0);
		writer.objectBegin().objectItem("type").valueString("com.alibaba.dubbo.TestService").objectItem("version").valueString("1.1.0").objectEnd();
		assertEquals(w.getBuffer().toString(),"{\"type\":\"com.alibaba.dubbo.TestService\",\"version\":\"1.1.0\"}");

		w.getBuffer().setLength(0);
		writer.objectBegin();
		writer.objectItem("name").objectItem("displayName");
		writer.objectItem("emptyList").arrayBegin().arrayEnd();
		writer.objectItem("list").arrayBegin().valueNull().valueBoolean(false).valueInt(16).valueString("stri'''ng").arrayEnd();
		writer.objectItem("service").objectBegin().objectItem("type").valueString("com.alibaba.dubbo.TestService").objectItem("version").valueString("1.1.0").objectEnd();
		writer.objectEnd();
	}
}