1 /* 2 * Copyright (C) 2006 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 com.android.unit_tests; 18 19 import junit.framework.TestCase; 20 import android.test.suitebuilder.annotation.MediumTest; 21 22 23 public class InstanceofTest extends TestCase { 24 25 protected A mA; 26 protected ChildOfAOne mOne; 27 protected ChildOfAOne mTwo; 28 protected ChildOfAOne mThree; 29 protected ChildOfAOne mFour; 30 protected ChildOfAFive mFive; 31 32 @Override setUp()33 protected void setUp() throws Exception { 34 super.setUp(); 35 36 mA = new A(); 37 mOne = new ChildOfAOne(); 38 mTwo = new ChildOfATwo(); 39 mThree = new ChildOfAThree(); 40 mFour = new ChildOfAFour(); 41 mFive = new ChildOfAFive(); 42 } 43 44 45 @MediumTest testNoInterface()46 public void testNoInterface() throws Exception { 47 A a = mA; 48 for (int i = 0; i < 100000; i++) { 49 assertFalse("m_a should not be a ChildOfAFive", a instanceof ChildOfAFive); 50 } 51 } 52 53 @MediumTest testDerivedOne()54 public void testDerivedOne() throws Exception { 55 InterfaceOne one = mOne; 56 for (int i = 0; i < 100000; i++) { 57 assertFalse("m_one should not be a ChildOfAFive", one instanceof ChildOfAFive); 58 } 59 } 60 61 @MediumTest testDerivedTwo()62 public void testDerivedTwo() throws Exception { 63 InterfaceTwo two = mTwo; 64 for (int i = 0; i < 100000; i++) { 65 assertFalse("m_two should not be a ChildOfAFive", two instanceof ChildOfAFive); 66 } 67 } 68 69 @MediumTest testDerivedThree()70 public void testDerivedThree() throws Exception { 71 InterfaceThree three = mThree; 72 for (int i = 0; i < 100000; i++) { 73 assertFalse("m_three should not be a ChildOfAFive", three instanceof ChildOfAFive); 74 } 75 } 76 77 @MediumTest testDerivedFour()78 public void testDerivedFour() throws Exception { 79 InterfaceFour four = mFour; 80 for (int i = 0; i < 100000; i++) { 81 assertFalse("m_four should not be a ChildOfAFive", four instanceof ChildOfAFive); 82 } 83 } 84 85 @MediumTest testSuccessClass()86 public void testSuccessClass() throws Exception { 87 ChildOfAOne five = mFive; 88 for (int i = 0; i < 100000; i++) { 89 assertTrue("m_five is suppose to be a ChildOfAFive", five instanceof ChildOfAFive); 90 } 91 } 92 93 @MediumTest testSuccessInterface()94 public void testSuccessInterface() throws Exception { 95 ChildOfAFive five = mFive; 96 for (int i = 0; i < 100000; i++) { 97 assertTrue("m_five is suppose to be a InterfaceFour", five instanceof InterfaceFour); 98 } 99 } 100 101 @MediumTest testFailInterface()102 public void testFailInterface() throws Exception { 103 InterfaceOne one = mFive; 104 for (int i = 0; i < 100000; i++) { 105 assertFalse("m_five does not implement InterfaceFive", one instanceof InterfaceFive); 106 } 107 } 108 109 private interface InterfaceOne { 110 } 111 112 private interface InterfaceTwo { 113 } 114 115 private interface InterfaceThree { 116 } 117 118 private interface InterfaceFour { 119 } 120 121 private interface InterfaceFive { 122 } 123 124 private static class A { 125 } 126 127 private static class ChildOfAOne extends A implements InterfaceOne, InterfaceTwo, InterfaceThree, InterfaceFour { 128 } 129 130 private static class ChildOfATwo extends ChildOfAOne { 131 } 132 133 private static class ChildOfAThree extends ChildOfATwo { 134 } 135 136 private static class ChildOfAFour extends ChildOfAThree { 137 } 138 139 private static class ChildOfAFive extends ChildOfAFour { 140 } 141 } 142