objectutilstests.java

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/*
 * 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.util;

import java.io.IOException;

import javax.servlet.ServletException;

import junit.framework.TestCase;

import org.springframework.beans.FatalBeanException;

/**
 * @author Rod Johnson
 * @author Juergen Hoeller
 */
public class ObjectUtilsTests extends TestCase {

	public void testIsCheckedException() {
		assertTrue(ObjectUtils.isCheckedException(new Exception()));
		assertTrue(ObjectUtils.isCheckedException(new ServletException()));

		assertFalse(ObjectUtils.isCheckedException(new RuntimeException()));
		assertFalse(ObjectUtils.isCheckedException(new FatalBeanException("")));

		// Any Throwable other than RuntimeException and Error
		// has to be considered checked according to the JLS.
		assertTrue(ObjectUtils.isCheckedException(new Throwable()));
	}

	public void testIsCompatibleWithThrowsClause() {
		Class[] empty = new Class[0];
		Class[] exception = new Class[] {Exception.class};
		Class[] servletAndIO = new Class[] {ServletException.class, IOException.class};
		Class[] throwable = new Class[] {Throwable.class};

		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new RuntimeException(), null));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new RuntimeException(), empty));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new RuntimeException(), exception));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new RuntimeException(), servletAndIO));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new RuntimeException(), throwable));

		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new Exception(), null));
		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new Exception(), empty));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new Exception(), exception));
		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new Exception(), servletAndIO));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new Exception(), throwable));

		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new ServletException(), null));
		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new ServletException(), empty));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new ServletException(), exception));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new ServletException(), servletAndIO));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new ServletException(), throwable));

		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new Throwable(), null));
		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new Throwable(), empty));
		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new Throwable(), exception));
		assertFalse(ObjectUtils.isCompatibleWithThrowsClause(new Throwable(), servletAndIO));
		assertTrue(ObjectUtils.isCompatibleWithThrowsClause(new Throwable(), throwable));
	}

	public void testToObjectArray() {
		int[] a = new int[] {1, 2, 3, 4, 5};
		Integer[] wrapper = (Integer[])ObjectUtils.toObjectArray(a);
		assertTrue(wrapper.length == 5);
		for (int i = 0; i < wrapper.length; i++) {
			assertEquals(a[i], wrapper[i].intValue());
		}
	}

}