| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package tests.api.java.lang.reflect; |
| |
| import java.lang.reflect.Method; |
| import java.lang.reflect.TypeVariable; |
| |
| import junit.framework.TestCase; |
| |
| public class GenericReflectionTestsBase extends TestCase{ |
| |
| /** |
| * Returns the type parameter of the declaring method. |
| * |
| * @param method |
| * the declaring method |
| * @return the type parameter of the method |
| */ |
| public TypeVariable<Method> getTypeParameter(Method method) { |
| TypeVariable<Method>[] typeParameters = method.getTypeParameters(); |
| assertLenghtOne(typeParameters); |
| TypeVariable<Method> typeParameter = typeParameters[0]; |
| return typeParameter; |
| } |
| |
| /** |
| * Returns the type parameter of the declaring class. |
| * |
| * @param method |
| * the declaring method. |
| * @return the type parameter of the method. |
| */ |
| @SuppressWarnings("unchecked") |
| public TypeVariable<Class> getTypeParameter(Class<?> clazz) { |
| TypeVariable[] typeParameters = clazz.getTypeParameters(); |
| assertLenghtOne(typeParameters); |
| TypeVariable<Class> typeVariable = typeParameters[0]; |
| assertEquals(clazz, typeVariable.getGenericDeclaration()); |
| assertEquals("T", typeVariable.getName()); |
| return typeVariable; |
| } |
| |
| public static void assertLenghtOne(Object[] array) { |
| TestCase.assertEquals("Array does NOT contain exactly one element.", 1, array.length); |
| } |
| |
| public static void assertLenghtZero(Object[] array) { |
| TestCase.assertEquals("Array has more than zero elements.", 0, array.length); |
| } |
| |
| public static void assertInstanceOf(Class<?> expectedClass, Object actual) { |
| TestCase.assertTrue(actual.getClass().getName() + " is not instance of :" + expectedClass.getName(), expectedClass |
| .isInstance(actual)); |
| } |
| |
| public static void assertNotEquals(Object expected, Object actual) { |
| TestCase.assertFalse(actual.toString() + " has not to be equal to " + expected.toString(), expected.equals(actual)); |
| } |
| |
| } |