org.aspectj/weaver5/java5-testsrc/org/aspectj/weaver/TestJava5ReflectionBasedReferenceTypeDelegate.java

/* *******************************************************************
 * Copyright (c) 2005 Contributors.
 * All rights reserved. 
 * This program and the accompanying materials are made available 
 * under the terms of the Eclipse Public License v1.0 
 * which accompanies this distribution and is available at 
 * http://eclipse.org/legal/epl-v10.html 
 *  
 * Contributors: 
 *   Andrew Clement          Initial implementation
 * ******************************************************************/

package org.aspectj.weaver;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.aspectj.weaver.reflect.ReflectionBasedReferenceTypeDelegateTest;

public class TestJava5ReflectionBasedReferenceTypeDelegate extends ReflectionBasedReferenceTypeDelegateTest {

	public static Test suite() {
		TestSuite suite = new TestSuite("TestJava5ReflectionBasedReferenceTypeDelegate");
		suite.addTestSuite(TestJava5ReflectionBasedReferenceTypeDelegate.class);
		return suite;
	}

	/**
	 * Let's play about with a generic type and ensure we can work with it in a reflective world.
	 */
	public void testResolveGeneric() {
		UnresolvedType collectionType = UnresolvedType.forName("java.util.Collection");
		world.resolve(collectionType).getRawType().resolve(world);
		ResolvedMember[] methods = world.resolve(collectionType).getDeclaredMethods();
		int i = findMethod("toArray", 1, methods);
		assertTrue("Couldn't find 'toArray' in the set of methods? ", i != -1);
		// String expectedSignature = "java.lang.Object[] java.util.Collection.toArray(java.lang.Object[])";
		String expectedSignature = "([Ljava/lang/Object;)[Ljava/lang/Object;";
		assertTrue("Expected signature of '" + expectedSignature + "' but it was '" + methods[i].getSignatureErased(), methods[i]
				.getSignatureErased().equals(expectedSignature));
	}

	/**
	 * Can we resolve the dreaded Enum type...
	 */
	public void testResolveEnum() {
		ResolvedType enumType = world.resolve("java.lang.Enum");
		assertTrue("Should be the raw type but is " + enumType.typeKind, enumType.isRawType());
		ResolvedType theGenericEnumType = enumType.getGenericType();
		assertTrue("Should have a type variable ", theGenericEnumType.getTypeVariables().length > 0);
		TypeVariable tv = theGenericEnumType.getTypeVariables()[0];
		String expected = "TypeVar E extends java.lang.Enum<E>";
		assertTrue("Type variable should be '" + expected + "' but is '" + tv + "'", tv.toString().equals(expected));
	}

	public void testResolveClass() {
		world.resolve("java.lang.Class").getGenericType();
	}

	public void testGenericInterfaceSuperclass_ReflectionWorldResolution() {

		UnresolvedType javaUtilMap = UnresolvedType.forName("java.util.Map");

		ReferenceType rawType = (ReferenceType) world.resolve(javaUtilMap);
		assertTrue("Should be the raw type ?!? " + rawType.getTypekind(), rawType.isRawType());

		ReferenceType genericType = (ReferenceType) rawType.getGenericType();
		assertTrue("Should be the generic type ?!? " + genericType.getTypekind(), genericType.isGenericType());

		ResolvedType rt = rawType.getSuperclass();
		assertTrue("Superclass for Map raw type should be Object but was " + rt, rt.equals(UnresolvedType.OBJECT));

		ResolvedType rt2 = genericType.getSuperclass();
		assertTrue("Superclass for Map generic type should be Object but was " + rt2, rt2.equals(UnresolvedType.OBJECT));
	}

}