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.test.suitebuilder; 18 19 import junit.framework.TestCase; 20 21 import java.lang.reflect.Method; 22 23 public class AssignableFromTest extends TestCase { 24 private AssignableFrom assignableFrom; 25 26 setUp()27 protected void setUp() throws Exception { 28 super.setUp(); 29 assignableFrom = new AssignableFrom(Animal.class); 30 } 31 testSelfIsAssignable()32 public void testSelfIsAssignable() throws Exception { 33 assertTrue(assignableFrom.apply(testMethodFor(Animal.class))); 34 } 35 testSubclassesAreAssignable()36 public void testSubclassesAreAssignable() throws Exception { 37 assertTrue(assignableFrom.apply(testMethodFor(Mammal.class))); 38 assertTrue(assignableFrom.apply(testMethodFor(Human.class))); 39 } 40 testNotAssignable()41 public void testNotAssignable() throws Exception { 42 assertFalse(assignableFrom.apply(testMethodFor(Pencil.class))); 43 } 44 testImplementorsAreAssignable()45 public void testImplementorsAreAssignable() throws Exception { 46 assignableFrom = new AssignableFrom(WritingInstrument.class); 47 48 assertTrue(assignableFrom.apply(testMethodFor(Pencil.class))); 49 assertTrue(assignableFrom.apply(testMethodFor(Pen.class))); 50 } 51 testMethodFor(Class<? extends TestCase> aClass)52 private TestMethod testMethodFor(Class<? extends TestCase> aClass) 53 throws NoSuchMethodException { 54 Method method = aClass.getMethod("testX"); 55 return new TestMethod(method, aClass); 56 } 57 58 private class Animal extends TestCase { testX()59 public void testX() { 60 } 61 } 62 63 private class Mammal extends Animal { testX()64 public void testX() { 65 } 66 } 67 68 private class Human extends Mammal { testX()69 public void testX() { 70 } 71 } 72 73 private interface WritingInstrument { 74 } 75 76 private class Pencil extends TestCase implements WritingInstrument { testX()77 public void testX() { 78 } 79 } 80 81 private class Pen extends TestCase implements WritingInstrument { testX()82 public void testX() { 83 } 84 } 85 } 86