content: /*
   * 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));
      }
  }
  