@@ -0,0 +1,2548 @@
+/*%0A * Copyright (C) 2014 Pedro Vicente G%C3%B3mez S%C3%A1nchez.%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A * http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0Apackage com.github.pedrovgs.problem57;%0A%0Aimport com.github.pedrovgs.linkedlist.ListNode;%0Aimport org.junit.Before;%0Aimport org.junit.Test;%0A%0Aimport static org.junit.Assert.assertEquals;%0Aimport static org.junit.Assert.assertNull;%0A%0A/**%0A * @author Pedro Vicente G%C3%B3mez S%C3%A1nchez.%0A */%0Apublic class RemoveListDuplicatedElementsTest %7B%0A%0A  private RemoveListDuplicatedElements removeDuplicates;%0A%0A  @Before public void setUp() %7B%0A    removeDuplicates = new RemoveListDuplicatedElements();%0A  %7D%0A%0A  @Test(expected = IllegalArgumentException.class)%0A  public void shouldNotAcceptNullInstancesAsParameter() %7B%0A    removeDuplicates.remove(null);%0A  %7D%0A%0A  @Test public void shouldNotModifyListIfThereAreNotDuplicatedElements() %7B%0A    ListNode%3CInteger%3E head = createList(new Integer%5B%5D %7B 0, 1, 2, 3, 4 %7D);%0A%0A    removeDuplicates.remove(head);%0A%0A    assertListContainsElements(new Integer%5B%5D %7B 0, 1, 2, 3, 4 %7D, head);%0A  %7D%0A%0A  @Test public void shouldRemoveDuplicatedElements() %7B%0A    ListNode%3CInteger%3E head = createList(new Integer%5B%5D %7B 0, 1, 0, 2, 2, 3, 4, 4 %7D);%0A%0A    removeDuplicates.remove(head);%0A%0A    assertListContainsElements(new Integer%5B%5D %7B 0, 1, 2, 3, 4 %7D, head);%0A  %7D%0A%0A  private ListNode%3CInteger%3E createList(Integer%5B%5D integers) %7B%0A    ListNode%3CInteger%3E head = new ListNode%3CInteger%3E(integers%5B0%5D);%0A    if (integers.length %3E 1) %7B%0A      ListNode%3CInteger%3E prevNode = head;%0A      for (int i = 1; i %3C integers.length; i++) %7B%0A        ListNode%3CInteger%3E currentNode = new ListNode%3CInteger%3E(integers%5Bi%5D);%0A        prevNode.setNext(currentNode);%0A        prevNode = currentNode;%0A      %7D%0A    %7D%0A    return head;%0A  %7D%0A%0A  private void assertListContainsElements(Integer%5B%5D integers, ListNode%3CInteger%3E head) %7B%0A    int arrayLength = integers.length;%0A    ListNode%3CInteger%3E currentNode = head;%0A%0A    int i = 0;%0A    while (i %3C arrayLength) %7B%0A      assertEquals(integers%5Bi%5D, currentNode.getData());%0A      currentNode = currentNode.getNext();%0A      i++;%0A    %7D%0A    assertNull(currentNode);%0A  %7D%0A%7D%0A

Add some tests to problem 57