import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail;

import java.util.ArrayList; import java.util.Arrays; import java.util.List; import org.junit.After; import org.junit.Before; import org.junit.Test;

public class TestList {

private List list;

@Before public void setUp() throws Exception { list = new ArrayList(); // TODO also try with a LinkedList - does it make any difference? }

@After public void tearDown() throws Exception { list = null; }

@Test public void testSizeEmpty() { assertTrue(list.isEmpty()); assertEquals(0, list.size()); try { list.get(0); fail("there should not be any items in the list"); } catch (Exception ex) { } }

@Test public void testSizeNonEmpty() { // TODO fix the expected values in the assertions below list.add(77); assertEquals(true, list.isEmpty()); assertEquals(0, list.size()); assertEquals(0, list.get(0).intValue()); }

@Test public void testContains() { // TODO write assertions using // list.contains(77) // that hold before and after adding 77 to the list fail("Not yet implemented"); // remove this line when done }

@Test public void testAddMultiple() { list.add(77); list.add(77); list.add(77); // TODO fix the expected values in the assertions below assertEquals(0, list.size()); assertEquals(0, list.indexOf(77)); assertEquals(0, list.get(1).intValue()); assertEquals(0, list.lastIndexOf(77)); }

@Test public void testAddMultiple2() { list.add(33); list.add(77); list.add(44); list.add(77); list.add(55); list.add(77); list.add(66); // TODO fix the expected values in the assertions below assertEquals(0, list.size()); assertEquals(0, list.indexOf(77)); assertEquals(0, list.lastIndexOf(77)); assertEquals(0, list.get(2).intValue()); assertEquals(0, list.get(3).intValue()); assertEquals(Arrays.asList(33, 77, 44), list); }

@Test public void testRemoveObject() { list.add(3); list.add(77); list.add(4); list.add(77); list.add(5); list.add(77); list.add(6); list.remove(5); // what does this method do? // TODO fix the expected values in the assertions below assertEquals(0, list.size()); assertEquals(0, list.indexOf(77)); assertEquals(0, list.lastIndexOf(77)); assertEquals(0, list.get(2).intValue()); assertEquals(0, list.get(3).intValue()); list.remove(Integer.valueOf(5)); // what does this one do? assertEquals(0, list.size()); assertEquals(0, list.indexOf(77)); assertEquals(0, list.lastIndexOf(77)); assertEquals(0, list.get(2).intValue()); assertEquals(0, list.get(3).intValue()); }

@Test public void testContainsAll() { list.add(33); list.add(77); list.add(44); list.add(77); list.add(55); list.add(77); list.add(66); // TODO using containsAll and Arrays.asList (see above), // 1) assert that list contains all five different numbers added // 2) assert that list does not contain all of 11, 22, and 33 fail("Not yet implemented"); // remove this line when done }

@Test public void testAddAll() { // TODO in a single statement using addAll and Arrays.asList, // add items to the list to make the following assertions pass // (without touching the assertions themselves) assertEquals(7, list.size()); assertEquals(33, list.get(0).intValue()); assertEquals(77, list.get(1).intValue()); assertEquals(44, list.get(2).intValue()); assertEquals(77, list.get(3).intValue()); assertEquals(55, list.get(4).intValue()); assertEquals(77, list.get(5).intValue()); assertEquals(66, list.get(6).intValue()); }

@Test public void testRemoveAll() { list.add(33); list.add(77); list.add(44); list.add(77); list.add(55); list.add(77); list.add(66); // TODO in a single statement using removeAll and Arrays.asList, // remove items from the list to make the following assertions pass // (without touching the assertions themselves) assertEquals(3, list.size()); assertEquals(Arrays.asList(77, 77, 77), list); }

@Test public void testRetainAll() { list.add(33); list.add(77); list.add(44); list.add(77); list.add(55); list.add(77); list.add(66); // TODO in a single statement using retainAll and Arrays.asList, // remove items from the list to make the following assertions pass // (without touching the assertions themselves) assertEquals(3, list.size()); assertEquals(Arrays.asList(77, 77, 77), list); }

@Test public void testSet() { list.add(33); list.add(77); list.add(44); list.add(77); list.add(55); list.add(77); list.add(66); // TODO use the set method to change specific elements in the list // such that the following assertions pass // (without touching the assertions themselves) assertEquals(7, list.size()); assertEquals(33, list.get(0).intValue()); assertEquals(99, list.get(1).intValue()); assertEquals(44, list.get(2).intValue()); assertEquals(99, list.get(3).intValue()); assertEquals(55, list.get(4).intValue()); assertEquals(99, list.get(5).intValue()); assertEquals(66, list.get(6).intValue()); }

@Test public void testSubList() { list.add(33); list.add(77); list.add(44); list.add(77); list.add(55); list.add(77); list.add(66); // TODO fix the arguments in the subList method so that the assertion // passes assertEquals(Arrays.asList(44, 77, 55), list.subList(0, 0)); } }

How to do the TODO?