/*
 * Copyright (C) 2014 Pedro Vicente Gómez Sánchez.
 *
 * 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.github.pedrovgs.problem27;

import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.assertEquals;

/**
 * @author Pedro Vicente Gómez Sánchez.
 */
public class ReverseSentenceTest {

  private ReverseSentence reverseSentence;

  @Before public void setUp() {
    reverseSentence = new ReverseSentence();
  }

  @Test(expected = IllegalArgumentException.class) public void shouldNotAcceptNullStringsAsInput() {
    reverseSentence.reverse(null);
  }

  @Test public void shouldReturnEmptyIfInputIsEmpty() {
    assertEquals("", reverseSentence.reverse(""));
  }

  @Test public void shouldReverseOneSentenceWithJustOneWord() {
    String input = "pedro";

    String result = reverseSentence.reverse(input);

    assertEquals("pedro", result);
  }

  @Test public void shouldReverseSentenceWithMoreThanOneWord() {
    String input = "pedro vicente gómez";

    String result = reverseSentence.reverse(input);

    assertEquals("gómez vicente pedro", result);
  }
}

Add some tests to problem 27
Add some tests to problem 27
