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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.gson;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.HashMap;
import java.util.Map;
import javax.ws.rs.core.MediaType;
import org.junit.Before;
import org.junit.Test;
public class GsonMessageBodyHandlerTest {
private static final String GEN_TYPE = "some-type";
private static final String[] subtypes = {"json", "jSoN", "hello+json", "javascript", "x-javascript", "x-json"};
@SuppressWarnings("rawtypes")
private static final Class GEN_CLASS = MyObject.class;
@SuppressWarnings("unchecked")
private static final Class<Object> CLASS_OBJ = GEN_CLASS;
private GsonMessageBodyHandler hdlr;
@Before
public void setUp() {
hdlr = new GsonMessageBodyHandler();
}
@Test
public void testIsWriteable() {
// null media type
assertTrue(hdlr.isWriteable(null, null, null, null));
for (String subtype : subtypes) {
assertTrue("writeable " + subtype, hdlr.isWriteable(null, null, null, new MediaType(GEN_TYPE, subtype)));
}
// the remaining should be FALSE
// null subtype
assertFalse(hdlr.isWriteable(null, null, null, new MediaType(GEN_TYPE, null)));
// text subtype
assertFalse(hdlr.isWriteable(null, null, null, MediaType.TEXT_HTML_TYPE));
}
@Test
public void testGetSize() {
assertEquals(-1, hdlr.getSize(null, null, null, null, null));
}
@Test
public void testWriteTo_testReadFrom() throws Exception {
ByteArrayOutputStream outstr = new ByteArrayOutputStream();
MyObject obj1 = new MyObject(10);
hdlr.writeTo(obj1, obj1.getClass(), CLASS_OBJ, null, null, null, outstr);
Object obj2 = hdlr.readFrom(CLASS_OBJ, CLASS_OBJ, null, null, null,
new ByteArrayInputStream(outstr.toByteArray()));
assertEquals(obj1.toString(), obj2.toString());
}
@Test
public void testWriteTo_DifferentTypes() throws Exception {
ByteArrayOutputStream outstr = new ByteArrayOutputStream();
// use a derived type, but specify the base type when writing
MyObject obj1 = new MyObject(10) {};
hdlr.writeTo(obj1, obj1.getClass(), CLASS_OBJ, null, null, null, outstr);
Object obj2 = hdlr.readFrom(CLASS_OBJ, CLASS_OBJ, null, null, null,
new ByteArrayInputStream(outstr.toByteArray()));
assertEquals(obj1.toString(), obj2.toString());
}
@Test
public void testIsReadable() {
// null media type
assertTrue(hdlr.isReadable(null, null, null, null));
// null subtype
assertFalse(hdlr.isReadable(null, null, null, new MediaType(GEN_TYPE, null)));
for (String subtype : subtypes) {
assertTrue("readable " + subtype, hdlr.isReadable(null, null, null, new MediaType(GEN_TYPE, subtype)));
}
// the remaining should be FALSE
// null subtype
assertFalse(hdlr.isReadable(null, null, null, new MediaType(GEN_TYPE, null)));
// text subtype
assertFalse(hdlr.isReadable(null, null, null, MediaType.TEXT_HTML_TYPE));
}
@Test
public void testReadFrom_DifferentTypes() throws Exception {
ByteArrayOutputStream outstr = new ByteArrayOutputStream();
MyObject obj1 = new MyObject(10);
hdlr.writeTo(obj1, obj1.getClass(), CLASS_OBJ, null, null, null, outstr);
// use a derived type, but specify the base type when reading
@SuppressWarnings("rawtypes")
Class clazz = new MyObject() {}.getClass();
@SuppressWarnings("unchecked")
Class<Object> objclazz = clazz;
Object obj2 = hdlr.readFrom(objclazz, CLASS_OBJ, null, null, null,
new ByteArrayInputStream(outstr.toByteArray()));
assertEquals(obj1.toString(), obj2.toString());
}
@Test
public void testMapDouble() throws Exception {
MyMap map = new MyMap();
map.props = new HashMap<>();
map.props.put("plainString", "def");
map.props.put("negInt", -10);
map.props.put("doubleVal", 12.5);
map.props.put("posLong", 100000000000L);
ByteArrayOutputStream outstr = new ByteArrayOutputStream();
hdlr.writeTo(map, map.getClass(), map.getClass(), null, null, null, outstr);
Object obj2 = hdlr.readFrom(Object.class, map.getClass(), null, null, null,
new ByteArrayInputStream(outstr.toByteArray()));
assertEquals(map.toString(), obj2.toString());
map = (MyMap) obj2;
assertEquals(-10, map.props.get("negInt"));
assertEquals(100000000000L, map.props.get("posLong"));
assertEquals(12.5, map.props.get("doubleVal"));
}
public static class MyObject {
private int id;
public MyObject() {
super();
}
public MyObject(int id) {
this.id = id;
}
@Override
public String toString() {
return "MyObject [id=" + id + "]";
}
}
private static class MyMap {
private Map<String, Object> props;
@Override
public String toString() {
return props.toString();
}
}
}
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