124 lines
3.8 KiB
Java
124 lines
3.8 KiB
Java
/*
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* Copyright (C) 2008 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.lang.reflect.Type;
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import java.util.Arrays;
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import java.util.LinkedHashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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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.GsonBuilder;
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import com.google.gson.common.TestTypes.ArrayOfObjects;
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import com.google.gson.common.TestTypes.BagOfPrimitives;
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import com.google.gson.reflect.TypeToken;
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/**
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* Functional tests for pretty printing option.
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*
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* @author Inderjeet Singh
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* @author Joel Leitch
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*/
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public class PrettyPrintingTest extends TestCase {
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private static final boolean DEBUG = false;
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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 GsonBuilder().setPrettyPrinting().create();
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}
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public void testPrettyPrintList() {
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BagOfPrimitives b = new BagOfPrimitives();
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List<BagOfPrimitives> listOfB = new LinkedList<>();
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for (int i = 0; i < 15; ++i) {
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listOfB.add(b);
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}
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Type typeOfSrc = new TypeToken<List<BagOfPrimitives>>() {}.getType();
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String json = gson.toJson(listOfB, typeOfSrc);
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print(json);
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}
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public void testPrettyPrintArrayOfObjects() {
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ArrayOfObjects target = new ArrayOfObjects();
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String json = gson.toJson(target);
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print(json);
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}
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public void testPrettyPrintArrayOfPrimitives() {
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int[] ints = new int[] { 1, 2, 3, 4, 5 };
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String json = gson.toJson(ints);
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assertEquals("[\n 1,\n 2,\n 3,\n 4,\n 5\n]", json);
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}
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public void testPrettyPrintArrayOfPrimitiveArrays() {
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int[][] ints = new int[][] { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 },
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{ 9, 0 }, { 10 } };
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String json = gson.toJson(ints);
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assertEquals("[\n [\n 1,\n 2\n ],\n [\n 3,\n 4\n ],\n [\n 5,\n 6\n ],"
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+ "\n [\n 7,\n 8\n ],\n [\n 9,\n 0\n ],\n [\n 10\n ]\n]", json);
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}
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public void testPrettyPrintListOfPrimitiveArrays() {
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List<Integer[]> list = Arrays.asList(new Integer[][] { { 1, 2 }, { 3, 4 },
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{ 5, 6 }, { 7, 8 }, { 9, 0 }, { 10 } });
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String json = gson.toJson(list);
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assertEquals("[\n [\n 1,\n 2\n ],\n [\n 3,\n 4\n ],\n [\n 5,\n 6\n ],"
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+ "\n [\n 7,\n 8\n ],\n [\n 9,\n 0\n ],\n [\n 10\n ]\n]", json);
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}
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public void testMap() {
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Map<String, Integer> map = new LinkedHashMap<>();
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map.put("abc", 1);
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map.put("def", 5);
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String json = gson.toJson(map);
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assertEquals("{\n \"abc\": 1,\n \"def\": 5\n}", json);
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}
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// In response to bug 153
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public void testEmptyMapField() {
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ClassWithMap obj = new ClassWithMap();
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obj.map = new LinkedHashMap<>();
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String json = gson.toJson(obj);
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assertTrue(json.contains("{\n \"map\": {},\n \"value\": 2\n}"));
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}
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@SuppressWarnings("unused")
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private static class ClassWithMap {
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Map<String, Integer> map;
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int value = 2;
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}
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public void testMultipleArrays() {
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int[][][] ints = new int[][][] { { { 1 }, { 2 } } };
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String json = gson.toJson(ints);
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assertEquals("[\n [\n [\n 1\n ],\n [\n 2\n ]\n ]\n]", json);
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}
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private void print(String msg) {
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if (DEBUG) {
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System.out.println(msg);
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}
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}
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}
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