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/**
* <copyright>
*
* Copyright (c) 2005, 2006, 2007, 2008 Springsite BV (The Netherlands) and others
* 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://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Martin Taal - Initial API and implementation
*
* </copyright>
*
* $Id: AssertUtil.java,v 1.7 2009/03/30 07:53:04 mtaal Exp $
*/
package org.eclipse.emf.teneo.util;
import org.eclipse.emf.ecore.EObject;
/**
* Contains utility methods for assertions
*
* @author <a href="mailto:mtaal@elver.org">Martin Taal</a>
* @version $Revision: 1.7 $
*/
public class AssertUtil {
/** AssertTrue with message */
public static void assertTrue(String msg, boolean value) {
if (!value) {
throw new AssertionError(msg);
}
}
/** Same resource check */
public static void assertResource(EObject obj1, EObject obj2) {
if (obj1.eResource() == null && ((EObject) obj2).eResource() == null)
return;
if (obj1.eResource() != ((EObject) obj2).eResource()) {
throw new AssertionError("The resources are different: " + obj1.getClass().getName() + "/"
+ obj2.getClass().getName());
}
}
/** Checks for correct container relations */
public static void assertContainer(EObject parent, EObject child) {
if (parent != child.eContainer()) {
throw new AssertionError("The child's container is incorrect! parent/child: "
+ parent.getClass().getName() + "/" + child.getClass().getName());
}
}
/** Asserts that the passed entry is null */
public static void assertIsNull(Object obj) {
if (obj != null) {
throw new AssertionError("Passed object: " + obj.getClass().getName()
+ " is not null while this was expected");
}
}
/**
* Checks if the passed object is of the class specified, null values are ignored
*/
public static void assertInstanceOf(Object obj, Class<?> expClass) {
if (obj == null)
return;
if (!(expClass.isAssignableFrom(obj.getClass()))) {
throw new AssertionError("Expected class: " + expClass.getName() + " but object has class: "
+ obj.getClass().getName());
}
}
/**
* Checks if the passed object is of the class specified, null values throw an exception
*/
public static void assertInstanceOfNotNull(Object obj, Class<?> expClass) {
if (obj == null) {
throw new AssertionError("Checking instanceof but object is null, expecting class: "
+ expClass.getName());
}
if (!(expClass.isAssignableFrom(obj.getClass()))) {
throw new AssertionError("Expected class: " + expClass.getName() + " but object has class: "
+ obj.getClass().getName());
}
}
/** Checks object memory equality */
public static void assertSameObject(Object obj1, Object obj2) {
if (obj1 != obj2) {
throw new AssertionError("Objects are not the same");
}
}
/** Checks object memory inequality */
public static void assertNotSameObject(Object obj1, Object obj2) {
if (obj1 == obj2) {
throw new AssertionError("Objects are the same");
}
}
}
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