| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.proxy2; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNotSame; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.IOException; |
| import java.io.Serializable; |
| import java.lang.reflect.Method; |
| import java.util.Arrays; |
| import java.util.Date; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.ServiceLoader; |
| import java.util.SortedSet; |
| import java.util.TreeSet; |
| |
| import org.apache.commons.proxy2.provider.BeanProvider; |
| import org.apache.commons.proxy2.provider.ConstantProvider; |
| import org.apache.commons.proxy2.provider.SingletonProvider; |
| import org.apache.commons.proxy2.util.AbstractTestCase; |
| import org.apache.commons.proxy2.util.DuplicateEcho; |
| import org.apache.commons.proxy2.util.Echo; |
| import org.apache.commons.proxy2.util.EchoImpl; |
| import org.apache.commons.proxy2.util.SuffixInterceptor; |
| import org.junit.Test; |
| |
| @SuppressWarnings("serial") |
| public abstract class AbstractProxyFactoryTestCase extends AbstractTestCase |
| { |
| //********************************************************************************************************************** |
| // Fields |
| //********************************************************************************************************************** |
| |
| private static final Class<?>[] ECHO_ONLY = new Class[] { Echo.class }; |
| protected final ProxyFactory factory; |
| private static final Class<?>[] COMPARABLE_ONLY = new Class[] { Comparable.class }; |
| |
| //********************************************************************************************************************** |
| // Constructors |
| //********************************************************************************************************************** |
| |
| protected AbstractProxyFactoryTestCase() |
| { |
| final ServiceLoader<ProxyFactory> serviceLoader = ServiceLoader.load(ProxyFactory.class); |
| Iterator<ProxyFactory> iter = serviceLoader.iterator(); |
| if (iter.hasNext()) |
| { |
| this.factory = iter.next(); |
| } |
| else |
| { |
| throw new RuntimeException("Unable to find proxy factory implementation."); |
| } |
| |
| } |
| |
| //********************************************************************************************************************** |
| // Other Methods |
| //********************************************************************************************************************** |
| |
| private ObjectProvider<Echo> createSingletonEcho() |
| { |
| return new SingletonProvider<Echo>(new BeanProvider<Echo>(EchoImpl.class)); |
| } |
| |
| @Test |
| public void testInterceptorHashCode() |
| { |
| final Echo proxy = factory.createInterceptorProxy(new EchoImpl(), new NoOpMethodInterceptor(), ECHO_ONLY); |
| assertEquals(proxy.hashCode(), System.identityHashCode(proxy)); |
| } |
| |
| @Test |
| public void testInvokerHashCode() throws Exception |
| { |
| final Echo proxy = factory.createInvokerProxy(new InvokerTester(), ECHO_ONLY); |
| assertEquals(proxy.hashCode(), System.identityHashCode(proxy)); |
| } |
| |
| @Test |
| public void testDelegatorHashCode() throws Exception |
| { |
| final Echo proxy = factory.createDelegatorProxy(new ConstantProvider<Echo>(new EchoImpl()), Echo.class); |
| assertEquals(proxy.hashCode(), System.identityHashCode(proxy)); |
| } |
| |
| @Test |
| public void testInterceptorEquals() |
| { |
| final Date date = new Date(); |
| final Comparable<?> proxy1 = factory.createInterceptorProxy(date, new NoOpMethodInterceptor(), COMPARABLE_ONLY); |
| final Comparable<?> proxy2 = factory.createInterceptorProxy(date, new NoOpMethodInterceptor(), COMPARABLE_ONLY); |
| assertEquals(proxy1, proxy1); |
| assertFalse(proxy1.equals(proxy2)); |
| assertFalse(proxy2.equals(proxy1)); |
| } |
| |
| @Test |
| public void testInvokerEquals() throws Exception |
| { |
| final Comparable<?> proxy1 = factory.createInvokerProxy(new InvokerTester(), COMPARABLE_ONLY); |
| final Comparable<?> proxy2 = factory.createInvokerProxy(new InvokerTester(), COMPARABLE_ONLY); |
| assertEquals(proxy1, proxy1); |
| assertFalse(proxy1.equals(proxy2)); |
| assertFalse(proxy2.equals(proxy1)); |
| } |
| |
| @Test |
| public void testDelegatorEquals() throws Exception |
| { |
| final Date date = new Date(); |
| final Comparable<?> proxy1 = factory.createDelegatorProxy(new ConstantProvider<Date>(date), COMPARABLE_ONLY); |
| final Comparable<?> proxy2 = factory.createDelegatorProxy(new ConstantProvider<Date>(date), COMPARABLE_ONLY); |
| assertEquals(proxy1, proxy1); |
| assertFalse(proxy1.equals(proxy2)); |
| assertFalse(proxy2.equals(proxy1)); |
| } |
| |
| @Test |
| public void testBooleanInterceptorParameter() |
| { |
| final Echo echo = factory.createInterceptorProxy(new EchoImpl(), new InterceptorTester(), ECHO_ONLY); |
| assertFalse(echo.echoBack(false)); |
| assertTrue(echo.echoBack(true)); |
| } |
| |
| @Test |
| public void testCanProxy() |
| { |
| assertTrue(factory.canProxy(Echo.class)); |
| assertFalse(factory.canProxy(EchoImpl.class)); |
| } |
| |
| @Test |
| public void testChangingArguments() |
| { |
| final Echo proxy = factory.createInterceptorProxy(new EchoImpl(), new ChangeArgumentInterceptor(), ECHO_ONLY); |
| assertEquals("something different", proxy.echoBack("whatever")); |
| } |
| |
| @Test |
| public void testCreateDelegatingProxy() |
| { |
| final Echo echo = factory.createDelegatorProxy(createSingletonEcho(), ECHO_ONLY); |
| echo.echo(); |
| assertEquals("message", echo.echoBack("message")); |
| assertEquals("ab", echo.echoBack("a", "b")); |
| } |
| |
| @Test |
| public void testCreateInterceptorProxy() |
| { |
| final Echo target = factory.createDelegatorProxy(createSingletonEcho(), ECHO_ONLY); |
| final Echo proxy = factory.createInterceptorProxy(target, new SuffixInterceptor(" suffix"), ECHO_ONLY); |
| proxy.echo(); |
| assertEquals("message suffix", proxy.echoBack("message")); |
| } |
| |
| @Test |
| public void testDelegatingProxyClassCaching() throws Exception |
| { |
| final Echo proxy1 = factory.createDelegatorProxy(new ConstantProvider<Echo>(new EchoImpl()), Echo.class); |
| final Echo proxy2 = factory.createDelegatorProxy(new ConstantProvider<Echo>(new EchoImpl()), Echo.class); |
| assertNotSame(proxy1, proxy2); |
| assertSame(proxy1.getClass(), proxy2.getClass()); |
| } |
| |
| @Test |
| public void testDelegatingProxyInterfaceOrder() |
| { |
| final Echo echo = factory.createDelegatorProxy(createSingletonEcho(), Echo.class, DuplicateEcho.class); |
| final List<Class<?>> expected = new LinkedList<Class<?>>(Arrays.<Class<?>> asList(Echo.class, |
| DuplicateEcho.class)); |
| final List<Class<?>> actual = new LinkedList<Class<?>>(Arrays.asList(echo.getClass().getInterfaces())); |
| actual.retainAll(expected); // Doesn't alter order! |
| assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testDelegatingProxySerializable() throws Exception |
| { |
| final Echo proxy = factory.createDelegatorProxy(new ConstantProvider<Echo>(new EchoImpl()), Echo.class); |
| assertSerializable(proxy); |
| } |
| |
| @Test |
| public void testInterceptingProxyClassCaching() throws Exception |
| { |
| final Echo proxy1 = factory.createInterceptorProxy(new EchoImpl(), new NoOpMethodInterceptor(), ECHO_ONLY); |
| final Echo proxy2 = factory.createInterceptorProxy(new EchoImpl(), new NoOpMethodInterceptor(), ECHO_ONLY); |
| assertNotSame(proxy1, proxy2); |
| assertSame(proxy1.getClass(), proxy2.getClass()); |
| } |
| |
| @Test |
| public void testInterceptingProxySerializable() throws Exception |
| { |
| final Echo proxy = factory.createInterceptorProxy(new EchoImpl(), new NoOpMethodInterceptor(), ECHO_ONLY); |
| assertSerializable(proxy); |
| } |
| |
| @Test(expected = IOException.class) |
| public void testInterceptorProxyWithCheckedException() throws Exception |
| { |
| final Echo proxy = factory.createInterceptorProxy(new EchoImpl(), new NoOpMethodInterceptor(), ECHO_ONLY); |
| proxy.ioException(); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testInterceptorProxyWithUncheckedException() throws Exception |
| { |
| final Echo proxy = factory.createInterceptorProxy(new EchoImpl(), new NoOpMethodInterceptor(), ECHO_ONLY); |
| proxy.illegalArgument(); |
| } |
| |
| @Test |
| public void testInterfaceHierarchies() |
| { |
| final SortedSet<String> set = factory.createDelegatorProxy(new ConstantProvider<SortedSet<String>>( |
| new TreeSet<String>()), SortedSet.class); |
| set.add("Hello"); |
| } |
| |
| @Test |
| public void testInvokerProxy() throws Exception |
| { |
| final InvokerTester tester = new InvokerTester(); |
| final Echo echo = factory.createInvokerProxy(tester, ECHO_ONLY); |
| echo.echoBack("hello"); |
| assertEquals(Echo.class.getMethod("echoBack", String.class), tester.method); |
| assertSame(echo, tester.proxy); |
| assertNotNull(tester.args); |
| assertEquals(1, tester.args.length); |
| assertEquals("hello", tester.args[0]); |
| } |
| |
| @Test |
| public void testInvokerProxyClassCaching() throws Exception |
| { |
| final Echo proxy1 = factory.createInvokerProxy(new InvokerTester(), ECHO_ONLY); |
| final Echo proxy2 = factory.createInvokerProxy(new InvokerTester(), ECHO_ONLY); |
| assertNotSame(proxy1, proxy2); |
| assertSame(proxy1.getClass(), proxy2.getClass()); |
| } |
| |
| @Test |
| public void testInvokerProxySerializable() throws Exception |
| { |
| final Echo proxy = factory.createInvokerProxy(new InvokerTester(), ECHO_ONLY); |
| assertSerializable(proxy); |
| } |
| |
| @Test |
| public void testMethodInvocationClassCaching() throws Exception |
| { |
| final InterceptorTester tester = new InterceptorTester(); |
| final EchoImpl target = new EchoImpl(); |
| final Echo proxy1 = factory.createInterceptorProxy(target, tester, ECHO_ONLY); |
| final Echo proxy2 = factory.createInterceptorProxy(target, tester, Echo.class, DuplicateEcho.class); |
| proxy1.echoBack("hello1"); |
| final Class<?> invocationClass1 = tester.invocationClass; |
| proxy2.echoBack("hello2"); |
| assertSame(invocationClass1, tester.invocationClass); |
| } |
| |
| @Test |
| public void testMethodInvocationDuplicateMethods() throws Exception |
| { |
| final InterceptorTester tester = new InterceptorTester(); |
| final EchoImpl target = new EchoImpl(); |
| final Echo proxy = factory.createInterceptorProxy(target, tester, Echo.class, DuplicateEcho.class); |
| proxy.echoBack("hello"); |
| assertEquals(Echo.class.getMethod("echoBack", String.class), tester.method); |
| } |
| |
| @Test |
| public void testMethodInvocationImplementation() throws Exception |
| { |
| final InterceptorTester tester = new InterceptorTester(); |
| final EchoImpl target = new EchoImpl(); |
| final Echo proxy = factory.createInterceptorProxy(target, tester, ECHO_ONLY); |
| proxy.echo(); |
| assertNotNull(tester.arguments); |
| assertEquals(0, tester.arguments.length); |
| assertEquals(Echo.class.getMethod("echo"), tester.method); |
| assertSame(proxy, tester.proxy); |
| proxy.echoBack("Hello"); |
| assertNotNull(tester.arguments); |
| assertEquals(1, tester.arguments.length); |
| assertEquals("Hello", tester.arguments[0]); |
| assertEquals(Echo.class.getMethod("echoBack", String.class), tester.method); |
| proxy.echoBack("Hello", "World"); |
| assertNotNull(tester.arguments); |
| assertEquals(2, tester.arguments.length); |
| assertEquals("Hello", tester.arguments[0]); |
| assertEquals("World", tester.arguments[1]); |
| assertEquals(Echo.class.getMethod("echoBack", String.class, String.class), tester.method); |
| } |
| |
| @Test |
| public void testPrimitiveParameter() |
| { |
| final Echo echo = factory.createDelegatorProxy(createSingletonEcho(), ECHO_ONLY); |
| assertEquals(1, echo.echoBack(1)); |
| } |
| |
| @Test(expected = IOException.class) |
| public void testProxyWithCheckedException() throws Exception |
| { |
| final Echo proxy = factory.createDelegatorProxy(new ConstantProvider<Echo>(new EchoImpl()), Echo.class); |
| proxy.ioException(); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testProxyWithUncheckedException() throws Exception |
| { |
| final Echo proxy = factory.createDelegatorProxy(new ConstantProvider<Echo>(new EchoImpl()), Echo.class); |
| proxy.illegalArgument(); |
| } |
| |
| @Test |
| public void testWithNonAccessibleTargetType() |
| { |
| final Echo proxy = factory.createInterceptorProxy(new PrivateEcho(), new NoOpMethodInterceptor(), ECHO_ONLY); |
| proxy.echo(); |
| } |
| |
| //********************************************************************************************************************** |
| // Inner Classes |
| //********************************************************************************************************************** |
| |
| private static class ChangeArgumentInterceptor implements Interceptor |
| { |
| @Override |
| public Object intercept(Invocation methodInvocation) throws Throwable |
| { |
| methodInvocation.getArguments()[0] = "something different"; |
| return methodInvocation.proceed(); |
| } |
| } |
| |
| protected static class InterceptorTester implements Interceptor |
| { |
| private Object[] arguments; |
| private Method method; |
| private Object proxy; |
| private Class<?> invocationClass; |
| |
| @Override |
| public Object intercept(Invocation methodInvocation) throws Throwable |
| { |
| arguments = methodInvocation.getArguments(); |
| method = methodInvocation.getMethod(); |
| proxy = methodInvocation.getProxy(); |
| invocationClass = methodInvocation.getClass(); |
| return methodInvocation.proceed(); |
| } |
| } |
| |
| protected static class InvokerTester implements Invoker |
| { |
| private Object method; |
| private Object[] args; |
| private Object proxy; |
| |
| @Override |
| public Object invoke(Object proxy, Method method, Object[] args) throws Throwable |
| { |
| this.proxy = proxy; |
| this.method = method; |
| this.args = args; |
| return null; |
| } |
| } |
| |
| protected static class NoOpMethodInterceptor implements Interceptor, Serializable |
| { |
| @Override |
| public Object intercept(Invocation methodInvocation) throws Throwable |
| { |
| return methodInvocation.proceed(); |
| } |
| } |
| |
| private static class PrivateEcho extends EchoImpl |
| { |
| } |
| } |