MapUtilsTest.java

/*
 * Copyright 2013 Agorava
 *
 * 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 org.agorava.utils;

import org.junit.Assert;
import org.junit.Test;

import java.util.HashMap;
import java.util.Map;

/**
 * @author: Pablo Fernandez
 */
public class MapUtilsTest {

    @Test
    public void shouldPrettyPrintMap() {
        Map<Integer, String> map = new HashMap<Integer, String>();
        map.put(1, "one");
        map.put(2, "two");
        map.put(3, "three");
        map.put(4, "four");
        Assert.assertEquals("{ 1 -> one , 2 -> two , 3 -> three , 4 -> four }", MapUtils.toString(map));
    }

    @Test
    public void shouldHandleEmptyMap() {
        Map<Integer, String> map = new HashMap<Integer, String>();
        Assert.assertEquals("{}", MapUtils.toString(map));
    }

    @Test
    public void shouldHandleNullInputs() {
        Assert.assertEquals("", MapUtils.toString(null));
    }
}