102 lines
3.2 KiB
Java
102 lines
3.2 KiB
Java
/*
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* Copyright (C) 2010 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.gson.functional;
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import java.util.Arrays;
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import java.util.Collection;
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import junit.framework.TestCase;
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import com.google.gson.Gson;
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import com.google.gson.reflect.TypeToken;
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/**
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* Unit tests to validate serialization of parameterized types without explicit types
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*
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* @author Inderjeet Singh
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*/
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public class RawSerializationTest extends TestCase {
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private Gson gson;
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@Override
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protected void setUp() throws Exception {
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super.setUp();
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gson = new Gson();
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}
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public void testCollectionOfPrimitives() {
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Collection<Integer> ints = Arrays.asList(1, 2, 3, 4, 5);
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String json = gson.toJson(ints);
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assertEquals("[1,2,3,4,5]", json);
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}
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public void testCollectionOfObjects() {
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Collection<Foo> foos = Arrays.asList(new Foo(1), new Foo(2));
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String json = gson.toJson(foos);
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assertEquals("[{\"b\":1},{\"b\":2}]", json);
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}
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public void testParameterizedObject() {
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Bar<Foo> bar = new Bar<>(new Foo(1));
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String expectedJson = "{\"t\":{\"b\":1}}";
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// Ensure that serialization works without specifying the type explicitly
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String json = gson.toJson(bar);
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assertEquals(expectedJson, json);
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// Ensure that serialization also works when the type is specified explicitly
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json = gson.toJson(bar, new TypeToken<Bar<Foo>>(){}.getType());
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assertEquals(expectedJson, json);
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}
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public void testTwoLevelParameterizedObject() {
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Bar<Bar<Foo>> bar = new Bar<>(new Bar<>(new Foo(1)));
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String expectedJson = "{\"t\":{\"t\":{\"b\":1}}}";
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// Ensure that serialization works without specifying the type explicitly
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String json = gson.toJson(bar);
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assertEquals(expectedJson, json);
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// Ensure that serialization also works when the type is specified explicitly
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json = gson.toJson(bar, new TypeToken<Bar<Bar<Foo>>>(){}.getType());
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assertEquals(expectedJson, json);
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}
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public void testThreeLevelParameterizedObject() {
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Bar<Bar<Bar<Foo>>> bar = new Bar<>(new Bar<>(new Bar<>(new Foo(1))));
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String expectedJson = "{\"t\":{\"t\":{\"t\":{\"b\":1}}}}";
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// Ensure that serialization works without specifying the type explicitly
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String json = gson.toJson(bar);
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assertEquals(expectedJson, json);
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// Ensure that serialization also works when the type is specified explicitly
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json = gson.toJson(bar, new TypeToken<Bar<Bar<Bar<Foo>>>>(){}.getType());
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assertEquals(expectedJson, json);
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}
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private static class Foo {
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@SuppressWarnings("unused")
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int b;
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Foo(int b) {
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this.b = b;
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}
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}
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private static class Bar<T> {
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@SuppressWarnings("unused")
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T t;
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Bar(T t) {
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this.t = t;
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}
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}
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}
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