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/*
* Copyright (C) 2011 Google Inc.
*
* 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.google.gson;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import junit.framework.TestCase;
public final class ObjectTypeAdapterTest extends TestCase {
private final Gson gson = new GsonBuilder().create();
private final TypeAdapter<Object> adapter = gson.getAdapter(Object.class);
public void testDeserialize() throws Exception {
Map<?, ?> map = (Map<?, ?>) adapter.fromJson("{\"a\":5,\"b\":[1,2,null],\"c\":{\"x\":\"y\"}}");
assertEquals(5.0, map.get("a"));
assertEquals(Arrays.asList(1.0, 2.0, null), map.get("b"));
assertEquals(Collections.singletonMap("x", "y"), map.get("c"));
assertEquals(3, map.size());
}
public void testSerialize() throws Exception {
Object object = new RuntimeType();
assertEquals("{'a':5,'b':[1,2,null]}", adapter.toJson(object).replace("\"", "'"));
}
public void testSerializeNullValue() throws Exception {
Map<String, Object> map = new LinkedHashMap<String, Object>();
map.put("a", null);
assertEquals("{'a':null}", adapter.toJson(map).replace('"', '\''));
}
public void testDeserializeNullValue() throws Exception {
Map<String, Object> map = new LinkedHashMap<String, Object>();
map.put("a", null);
assertEquals(map, adapter.fromJson("{\"a\":null}"));
}
public void testSerializeObject() throws Exception {
assertEquals("{}", adapter.toJson(new Object()));
}
@SuppressWarnings("unused")
private class RuntimeType {
Object a = 5;
Object b = Arrays.asList(1, 2, null);
}
}
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