Spring Framework example source code file (ReflectiveVisitorHelperTests.java)

This example Spring Framework source code file (ReflectiveVisitorHelperTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

abstractmockvisitor, abstractmockvisitor, arraylist, arraylist, directmockvisitor, directmockvisitor, invisibleclassvisitor, nullvisitor, object, object, packageprivatemockvisitor, reflectivevisitorhelper, superclassmockvisitor, superclasssuperinterfacemockvisitor, util

The Spring Framework ReflectiveVisitorHelperTests.java source code

/*
 * Copyright 2002-2005 the original author or authors.
 *
 * 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 org.springframework.core;

import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import junit.framework.TestCase;

/**
 * @author Keith Donald
 */
public class ReflectiveVisitorHelperTests extends TestCase {

	private ReflectiveVisitorHelper support;

	public void setUp() {
		support = new ReflectiveVisitorHelper();
	}

	public void testDirectDefaultLookup() {
		ensureVisit(new DirectMockVisitor(), new ArrayList());
	}

	public void testDirectDefaultLookupCache() {
		DirectMockVisitor visitor = new DirectMockVisitor();
		ensureVisit(visitor, new ArrayList());
		visitor.visited = false;
		ensureVisit(visitor, new ArrayList());
	}

	public void testSuperClassDefaultLookup() {
		ensureVisit(new SuperClassMockVisitor(), new ArrayList());
	}

	public void testPackagePrivateDefaultLookup() {
		ensureVisit(new PackagePrivateMockVisitor(), new ArrayList());
	}

	public void testSuperClassSuperInterfaceDefaultLookup() {
		ensureVisit(new SuperClassSuperInterfaceMockVisitor(), new ArrayList());
	}

	public void testInterfaceDefaultLookup() {
		ensureVisit(new InterfaceMockVisitor(), new ArrayList());
	}

	public void testInnerClassArgument() {
		Map.Entry entry = new Map.Entry() {
			public Object getKey() {
				return null;
			}

			public Object getValue() {
				return null;
			}

			public Object setValue(Object value) {
				return null;
			}
		};
		ensureVisit(new DirectMockVisitor(), entry);
	}

	public void testInheritedValueLookup() {
		ensureVisit(new InheritedArgMockVisitor(), new ArrayList());
	}

	public void testNullArgument() {
		ensureVisit(new NullVisitor(), null);
	}

	public void testInvisibleClassVisitor() {
		ensureVisit(new InvisibleClassVisitor(), new ArrayList());
	}

	public void testNullVisitor() {
		try {
			support.invokeVisit(null, new Object());
			fail("null visitor was accepted");
		}
		catch (IllegalArgumentException e) {
			// correct behavior.
		}
		catch (Exception e) {
			fail("null visitor was not handled properly");
		}
	}

	private void ensureVisit(AbstractMockVisitor visitor, Object argument) {
		support.invokeVisit(visitor, argument);
		assertTrue("Visitor was not visited!", visitor.visited);
	}

	public abstract class AbstractMockVisitor {
		boolean visited;
	}

	public class DirectMockVisitor extends AbstractMockVisitor {
		public void visit(ArrayList value) {
			visited = true;
		}

		public void visit(Map.Entry entry) {
			visited = true;
		}
	}

	public class InheritedArgMockVisitor extends AbstractMockVisitor {
		public void visit(Object value) {
			visited = true;
		}
	}

	public class SuperClassMockVisitor extends AbstractMockVisitor {
		public void visit(AbstractList value) {
			visited = true;
		}
	}

	public class SuperClassSuperInterfaceMockVisitor extends AbstractMockVisitor {
		public void visit(Collection value) {
			visited = true;
		}
	}

	public class InterfaceMockVisitor extends AbstractMockVisitor {
		public void visit(List value) {
			visited = true;
		}
	}

	public class PackagePrivateMockVisitor extends AbstractMockVisitor {
		void visit(ArrayList value) {
			visited = true;
		}
	}

	private class InvisibleClassVisitor extends AbstractMockVisitor {
		public void visit(ArrayList list) {
			visited = true;
		}
	}

	public class NullVisitor extends AbstractMockVisitor {
		public void visitNull() {
			visited = true;
		}
	}

}