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 com.android.internal.util.Predicate; 20 import junit.framework.TestCase; 21 22 import java.lang.annotation.ElementType; 23 import java.lang.annotation.Retention; 24 import java.lang.annotation.RetentionPolicy; 25 import java.lang.annotation.Target; 26 import java.lang.reflect.Method; 27 28 public class TestPredicatesTest extends TestCase { 29 testThatMethodWithAnnotationIsReportedAsBeingAnnotated()30 public void testThatMethodWithAnnotationIsReportedAsBeingAnnotated() throws Exception { 31 assertTrue(hasExampleAnnotation(ClassWithAnnotation.class, "testWithAnnotation")); 32 assertTrue(hasExampleAnnotation(ClassWithoutAnnotation.class, "testWithAnnotation")); 33 } 34 testThatMethodWithOutAnnotationIsNotReportedAsBeingAnnotated()35 public void testThatMethodWithOutAnnotationIsNotReportedAsBeingAnnotated() throws Exception { 36 assertFalse(hasExampleAnnotation(ClassWithoutAnnotation.class, "testWithoutAnnotation")); 37 } 38 testThatClassAnnotatioCausesAllMethodsToBeReportedAsBeingAnnotated()39 public void testThatClassAnnotatioCausesAllMethodsToBeReportedAsBeingAnnotated() 40 throws Exception { 41 assertTrue(hasExampleAnnotation(ClassWithAnnotation.class, "testWithoutAnnotation")); 42 } 43 hasExampleAnnotation(Class<? extends TestCase> aClass, String methodName)44 private boolean hasExampleAnnotation(Class<? extends TestCase> aClass, String methodName) 45 throws NoSuchMethodException { 46 Method method = aClass.getMethod(methodName); 47 TestMethod testMethod = new TestMethod(method, aClass); 48 return TestPredicates.hasAnnotation(Example.class).apply(testMethod); 49 } 50 51 @Retention(RetentionPolicy.RUNTIME) 52 @Target({ElementType.TYPE, ElementType.METHOD}) 53 public @interface Example { 54 } 55 56 @Example 57 static class ClassWithAnnotation extends TestCase { 58 59 @Example testWithAnnotation()60 public void testWithAnnotation() { 61 } 62 testWithoutAnnotation()63 public void testWithoutAnnotation() { 64 } 65 } 66 67 static class ClassWithoutAnnotation extends TestCase { 68 69 @Example testWithAnnotation()70 public void testWithAnnotation() { 71 } 72 testWithoutAnnotation()73 public void testWithoutAnnotation() { 74 } 75 } 76 77 private static final Predicate<Object> TRUE = new Predicate<Object>() { 78 public boolean apply(Object o) { 79 return true; 80 } 81 }; 82 83 private static final Predicate<Object> FALSE = new Predicate<Object>() { 84 public boolean apply(Object o) { 85 return false; 86 } 87 }; 88 testNotPredicate()89 public void testNotPredicate() throws Exception { 90 assertTrue(TestPredicates.not(FALSE).apply(null)); 91 assertFalse(TestPredicates.not(TRUE).apply(null)); 92 } 93 } 94