| // |
| // ======================================================================== |
| // Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.websocket.jsr356.utils; |
| |
| import static org.hamcrest.Matchers.nullValue; |
| |
| import org.eclipse.jetty.websocket.common.util.ReflectUtils; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class ReflectUtilsTest |
| { |
| public static interface Fruit<T> |
| { |
| } |
| |
| public static interface Color<T> |
| { |
| } |
| |
| public static interface Food<T> extends Fruit<T> |
| { |
| } |
| |
| public static abstract class Apple<T extends Object> implements Fruit<T>, Color<String> |
| { |
| } |
| |
| public static abstract class Cherry<A extends Object, B extends Number> implements Fruit<A>, Color<B> |
| { |
| } |
| |
| public static abstract class Banana implements Fruit<String>, Color<String> |
| { |
| } |
| |
| public static class Washington<Z extends Number, X extends Object> extends Cherry<X, Z> |
| { |
| } |
| |
| public static class Rainier extends Washington<Float, Short> |
| { |
| } |
| |
| public static class Pizza implements Food<Integer> |
| { |
| } |
| |
| public static class Cavendish extends Banana |
| { |
| } |
| |
| public static class GrannySmith extends Apple<Long> |
| { |
| } |
| |
| public static class Pear implements Fruit<String>, Color<Double> |
| { |
| } |
| |
| public static class Kiwi implements Fruit<Character> |
| { |
| } |
| |
| @Test |
| public void testFindGeneric_PearFruit() |
| { |
| assertFindGenericClass(Pear.class,Fruit.class,String.class); |
| } |
| |
| @Test |
| public void testFindGeneric_PizzaFruit() |
| { |
| assertFindGenericClass(Pizza.class,Fruit.class,Integer.class); |
| } |
| |
| @Test |
| public void testFindGeneric_KiwiFruit() |
| { |
| assertFindGenericClass(Kiwi.class,Fruit.class,Character.class); |
| } |
| |
| @Test |
| public void testFindGeneric_PearColor() |
| { |
| assertFindGenericClass(Pear.class,Color.class,Double.class); |
| } |
| |
| @Test |
| public void testFindGeneric_GrannySmithFruit() |
| { |
| assertFindGenericClass(GrannySmith.class,Fruit.class,Long.class); |
| } |
| |
| @Test |
| public void testFindGeneric_CavendishFruit() |
| { |
| assertFindGenericClass(Cavendish.class,Fruit.class,String.class); |
| } |
| |
| @Test |
| public void testFindGeneric_RainierFruit() |
| { |
| assertFindGenericClass(Rainier.class,Fruit.class,Short.class); |
| } |
| |
| @Test |
| public void testFindGeneric_WashingtonFruit() |
| { |
| // Washington does not have a concrete implementation |
| // of the Fruit interface, this should return null |
| Class<?> impl = ReflectUtils.findGenericClassFor(Washington.class,Fruit.class); |
| Assert.assertThat("Washington -> Fruit implementation",impl,nullValue()); |
| } |
| |
| private void assertFindGenericClass(Class<?> baseClass, Class<?> ifaceClass, Class<?> expectedClass) |
| { |
| Class<?> foundClass = ReflectUtils.findGenericClassFor(baseClass,ifaceClass); |
| String msg = String.format("Expecting %s<%s> found on %s",ifaceClass.getName(),expectedClass.getName(),baseClass.getName()); |
| Assert.assertEquals(msg,expectedClass,foundClass); |
| } |
| } |