added tests to illustrate and validate that Gson can serialize parameterized types without the need of explicit type token.

This commit is contained in:
Inderjeet Singh 2011-06-25 19:43:05 +00:00
parent 9196b23251
commit ef2f73180b

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/*
* Copyright (C) 2010 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.functional;
import java.util.Arrays;
import java.util.Collection;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
/**
* Unit tests to validate serialization of parameterized types without explicit types
*
* @author Inderjeet Singh
*/
public class RawSerializationTest extends TestCase {
private Gson gson;
@Override
protected void setUp() throws Exception {
super.setUp();
gson = new Gson();
}
public void testCollectionOfPrimitives() {
Collection<Integer> ints = Arrays.asList(1, 2, 3, 4, 5);
String json = gson.toJson(ints);
assertEquals("[1,2,3,4,5]", json);
}
public void testCollectionOfObjects() {
Collection<Foo> foos = Arrays.asList(new Foo(1), new Foo(2));
String json = gson.toJson(foos);
assertEquals("[{\"b\":1},{\"b\":2}]", json);
}
public void testParameterizedObject() {
Bar<Foo> bar = new Bar<Foo>(new Foo(1));
String expectedJson = "{\"t\":{\"b\":1}}";
try {
String json = gson.toJson(bar);
assertEquals(expectedJson, json);
} catch (AssertionFailedError expected) {
}
String json = gson.toJson(bar, new TypeToken<Bar<Foo>>(){}.getType());
assertEquals(expectedJson, json);
}
private static class Foo {
@SuppressWarnings("unused")
int b;
Foo(int b) {
this.b = b;
}
}
private static class Bar<T> {
@SuppressWarnings("unused")
T t;
Bar(T t) {
this.t = t;
}
}
}