FastJsonProviderTest.java

package com.alibaba.json.bvt.support.jaxrs;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.nio.charset.Charset;

import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedHashMap;

import junit.framework.TestCase;

import org.junit.Assert;

import com.alibaba.fastjson.serializer.SerializeFilter;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.serializer.ValueFilter;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.jaxrs.FastJsonProvider;

public class FastJsonProviderTest extends TestCase {

	@SuppressWarnings("deprecation")
	public void test_1() throws Exception { 
		
		FastJsonProvider provider1 = new FastJsonProvider("UTF-8");
		Assert.assertEquals("UTF-8", provider1.getCharset().name());
		
		FastJsonProvider provider2 = new FastJsonProvider();

		provider2.setCharset(Charset.forName("GBK"));
		Assert.assertEquals("GBK", provider2.getCharset().name());
		
		Assert.assertNull(provider2.getDateFormat());
		provider2.setDateFormat("yyyyMMdd");
		
		provider2.setFeatures(SerializerFeature.IgnoreErrorGetter);
		Assert.assertEquals(1, provider2.getFeatures().length);
		Assert.assertEquals(SerializerFeature.IgnoreErrorGetter,
				provider2.getFeatures()[0]);
		
		provider2.setFilters(serializeFilter);
		Assert.assertEquals(1, provider2.getFilters().length);
		Assert.assertEquals(serializeFilter, provider2.getFilters()[0]);
		
		FastJsonProvider provider = new FastJsonProvider(new Class[]{ VO.class });

		Assert.assertNotNull(provider.getFastJsonConfig());
		provider.setFastJsonConfig(new FastJsonConfig());
		
		Assert.assertEquals(true, provider.isReadable(VO.class, VO.class, null, MediaType.APPLICATION_JSON_TYPE));
		Assert.assertEquals(true, provider.isWriteable(VO.class, VO.class, null, MediaType.APPLICATION_JSON_TYPE));
		Assert.assertEquals(true, provider.isReadable(VO.class, VO.class, null, MediaType.APPLICATION_FORM_URLENCODED_TYPE));
		Assert.assertEquals(true, provider.isWriteable(VO.class, VO.class, null, MediaType.APPLICATION_FORM_URLENCODED_TYPE));
		Assert.assertEquals(false, provider.isReadable(VO.class, VO.class, null, MediaType.APPLICATION_XML_TYPE));
		Assert.assertEquals(false, provider.isWriteable(VO.class, VO.class, null, MediaType.APPLICATION_XML_TYPE));
		Assert.assertEquals(false, provider.isReadable(String.class, String.class, null, MediaType.valueOf("application/javascript")));
		Assert.assertEquals(false, provider.isWriteable(String.class, String.class, null, MediaType.valueOf("application/x-javascript")));
		Assert.assertEquals(false, provider.isReadable(String.class, String.class, null, MediaType.valueOf("applications/+json")));
		Assert.assertEquals(false, provider.isWriteable(String.class, String.class, null, MediaType.valueOf("applications/x-json")));
		Assert.assertEquals(false, provider.isReadable(null, null, null, MediaType.valueOf("application/x-javascript")));
		Assert.assertEquals(false, provider.isWriteable(null, null, null, null));

		
		VO vo = (VO) provider.readFrom(null, VO.class, null, MediaType.APPLICATION_JSON_TYPE, null, new ByteArrayInputStream("{\"id\":123}".getBytes(Charset
				.forName("UTF-8"))));
		Assert.assertEquals(123, vo.getId());

		final ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
		provider.writeTo(vo, VO.class, VO.class, null, MediaType.APPLICATION_JSON_TYPE, new MultivaluedHashMap<String, Object>(), byteOut);
		
		byte[] bytes = byteOut.toByteArray();
		Assert.assertEquals("{\"id\":123}", new String(bytes, "UTF-8"));
		
		provider.getSize(vo, VO.class, VO.class, null, MediaType.APPLICATION_JSON_TYPE);
		
	}
	
	private SerializeFilter serializeFilter = new ValueFilter() {
		@Override
		public Object process(Object object, String name, Object value) {
			if (value == null) {
				return "";
			}
			if (value instanceof Number) {
				return String.valueOf(value);
			}
			return value;
		}
	};
	
	public static class VO {

		private int id;

		public int getId() {
			return id;
		}

		public void setId(int id) {
			this.id = id;
		}

	}
}