1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.core; 18 19 import junit.framework.TestCase; 20 21 import java.util.ArrayList; 22 import android.test.suitebuilder.annotation.SmallTest; 23 24 /** 25 * This test case tests several often used functionality of ArrayLists. 26 */ 27 public class ArrayListTest extends TestCase { 28 29 @SuppressWarnings("unchecked") 30 @SmallTest 31 public void testArrayList() throws Exception { 32 ArrayList array = new ArrayList(); 33 assertEquals(0, array.size()); 34 assertTrue(array.isEmpty()); 35 36 array.add(new Integer(0)); 37 array.add(0, new Integer(1)); 38 array.add(1, new Integer(2)); 39 array.add(new Integer(3)); 40 array.add(new Integer(1)); 41 42 assertEquals(5, array.size()); 43 assertFalse(array.isEmpty()); 44 45 assertEquals(1, ((Integer) array.get(0)).intValue()); 46 assertEquals(2, ((Integer) array.get(1)).intValue()); 47 assertEquals(0, ((Integer) array.get(2)).intValue()); 48 assertEquals(3, ((Integer) array.get(3)).intValue()); 49 assertEquals(1, ((Integer) array.get(4)).intValue()); 50 51 assertFalse(array.contains(null)); 52 assertTrue(array.contains(new Integer(2))); 53 assertEquals(0, array.indexOf(new Integer(1))); 54 assertEquals(4, array.lastIndexOf(new Integer(1))); 55 assertTrue(array.indexOf(new Integer(5)) < 0); 56 assertTrue(array.lastIndexOf(new Integer(5)) < 0); 57 58 59 array.remove(1); 60 array.remove(1); 61 62 assertEquals(3, array.size()); 63 assertFalse(array.isEmpty()); 64 assertEquals(1, ((Integer) array.get(0)).intValue()); 65 assertEquals(3, ((Integer) array.get(1)).intValue()); 66 assertEquals(1, ((Integer) array.get(2)).intValue()); 67 68 assertFalse(array.contains(null)); 69 assertFalse(array.contains(new Integer(2))); 70 assertEquals(0, array.indexOf(new Integer(1))); 71 assertEquals(2, array.lastIndexOf(new Integer(1))); 72 assertTrue(array.indexOf(new Integer(5)) < 0); 73 assertTrue(array.lastIndexOf(new Integer(5)) < 0); 74 75 array.clear(); 76 77 assertEquals(0, array.size()); 78 assertTrue(array.isEmpty()); 79 assertTrue(array.indexOf(new Integer(5)) < 0); 80 assertTrue(array.lastIndexOf(new Integer(5)) < 0); 81 82 ArrayList al = new ArrayList(); 83 84 assertFalse(al.remove(null)); 85 assertFalse(al.remove("string")); 86 87 al.add("string"); 88 al.add(null); 89 90 assertTrue(al.remove(null)); 91 assertTrue(al.remove("string")); 92 } 93 } 94 95
