utils/eclipselink.utils.workbench.test/mappingsplugin/source/org/eclipse/persistence/tools/workbench/test/mappingsmodel/spi/meta/ExternalClassDescriptionTests.java

/*******************************************************************************
 * Copyright (c) 1998, 2013 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the 
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 
 * which accompanies this distribution. 
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at 
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.test.mappingsmodel.spi.meta;

import junit.framework.TestCase;

import org.eclipse.persistence.tools.workbench.mappingsmodel.spi.meta.ExternalClass;
import org.eclipse.persistence.tools.workbench.mappingsmodel.spi.meta.ExternalClassDescription;
import org.eclipse.persistence.tools.workbench.mappingsmodel.spi.meta.ExternalClassRepository;
import org.eclipse.persistence.tools.workbench.mappingsmodel.spi.meta.ExternalMethod;
import org.eclipse.persistence.tools.workbench.test.utility.TestTools;




public abstract class ExternalClassDescriptionTests extends TestCase {
	private ExternalClassRepository repository;


	protected ExternalClassDescriptionTests(String name) {
		super(name);
	}
	
	protected void setUp() throws Exception {
		super.setUp();
		this.repository = this.buildRepository();
	}

	protected abstract ExternalClassRepository buildRepository();
	
	protected void tearDown() throws Exception {
		TestTools.clear(this);
		super.tearDown();
	}

	public void testAdditionalInfo() {
		ExternalClassDescription type = this.descriptionFor(java.lang.Object.class);
		String additionalInfo = type.getAdditionalInfo();
		assertTrue("bad additional info: " + additionalInfo, additionalInfo.indexOf("rt.jar") != -1);
	}

	public void testArrayDepth() throws Exception {
		ExternalClassDescription type = this.descriptionFor(java.lang.Object.class);
		assertEquals("array depth", 0, type.getArrayDepth());

		type = this.descriptionFor(java.lang.String.class);
		ExternalClass exClass = type.getExternalClass();
		ExternalMethod exMethod = SPIMetaTestTools.zeroArgumentMethodNamed(exClass, "getBytes");
		type = exMethod.getReturnType();
		assertEquals("array depth", 1, type.getArrayDepth());
	}

	public void testElementTypeName() throws Exception {
		ExternalClassDescription type = this.descriptionFor(java.lang.Object.class);
		assertEquals("element type name", java.lang.Object.class.getName(), type.getElementTypeName());

		type = this.descriptionFor(java.lang.String.class);
		ExternalClass exClass = type.getExternalClass();
		ExternalMethod exMethod = SPIMetaTestTools.zeroArgumentMethodNamed(exClass, "getBytes");
		type = exMethod.getReturnType();
		assertEquals("element type name", byte.class.getName(), type.getElementTypeName());
	}

	public void testExternalClass() throws Exception {
		ExternalClassDescription type = this.descriptionFor(java.lang.Object.class);
		ExternalClass exClass = type.getExternalClass();
		assertEquals("external class", java.lang.Object.class.getDeclaredMethods().length, exClass.getDeclaredMethods().length);

		type = this.descriptionFor(java.lang.String.class);
		exClass = type.getExternalClass();
		ExternalMethod exMethod = SPIMetaTestTools.zeroArgumentMethodNamed(exClass, "getBytes");
		type = exMethod.getReturnType();
		boolean exCaught = false;
		try {
			exClass = type.getExternalClass();
		} catch (IllegalStateException ex) {
			exCaught = true;
		}
		assertTrue("IllegalStateException not thrown", exCaught);
	}

	public void testSynthetic() throws Exception {
		ExternalClassDescription type = this.descriptionFor(java.lang.Object.class);
		assertTrue( ! type.isSynthetic());
		type = this.descriptionFor(java.util.Map.class);
		assertTrue( ! type.isSynthetic());
		type = this.descriptionFor(java.util.Map.Entry.class);
		assertTrue( ! type.isSynthetic());
		type = this.descriptionFor(Class.forName("java.util.Vector$1"));
		assertTrue(type.isSynthetic());
	}

	private ExternalClassDescription descriptionFor(Class javaClass) {
		return this.descriptionForClassNamed(javaClass.getName());
	}

	private ExternalClassDescription descriptionForClassNamed(String className) {
		ExternalClassDescription[] descriptions = this.repository.getClassDescriptions();
		for (int i = descriptions.length; i-- > 0; ) {
			if (descriptions[i].getName().equals(className)) {
				return descriptions[i];
			}
		}
		throw new IllegalArgumentException(className);
	}

}