LockEntryTest.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.  
* <p>
*/
package org.olat.core.util.coordinate;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.Before;
import org.junit.Test;
import org.olat.admin.user.imp.TransientIdentity;
import org.olat.core.id.Identity;

/**
 * Description:<br>
 * Test the hash and equals method of LockEntry
 * 
 * <P>
 * Initial Date:  13.07.2010 <br>
 * @author patrickb
 */
public class LockEntryTest {

	private LockEntry leOne;
	private LockEntry sameAsLeOne;
	private LockEntry leThree;

	/**
	 * @throws java.lang.Exception
	 */
	@Before
	public void setUp() throws Exception {
		Identity identity100 = new TestIdentity();
		
		//the first lock entry instance
		leOne = new LockEntry("1234@subkey", System.currentTimeMillis(), identity100);
		
		//a second lock entry instance, which must be equal to the first one.
		sameAsLeOne = new LockEntry("1234@subkey", System.currentTimeMillis(), identity100);
		
		//a third lock entry instance, which is not equal to the other ones.
		leThree = new LockEntry("another@subkey", System.currentTimeMillis(), identity100);
	}

	/**
	 * Test method for {@link org.olat.core.util.coordinate.LockEntry#hashCode()}.
	 */
	@Test
	public void testEqualsObject() {
		assertFalse("Wrong equals implementation, different types are recognized as equals ",leOne.equals(new Integer(1)));
		assertFalse("Wrong equals implementation, different users are recognized as equals ",leOne.equals(leThree));
		assertFalse("Wrong equals implementation, null value is recognized as equals ",leOne.equals(null));
		assertTrue("Wrong equals implementation, same users are NOT recognized as equals ",leOne.equals(leOne));
		assertTrue("Wrong equals implementation, same users are NOT recognized as equals ",leOne.equals(sameAsLeOne));
	}

	/**
	 * Test method for {@link org.olat.core.util.coordinate.LockEntry#equals(java.lang.Object)}.
	 */
	@Test
	public void testHashCode() {
		assertTrue("Wrong hashCode implementation, same users have NOT same hash-code ",leOne.hashCode() == leOne.hashCode());
		assertFalse("Wrong hashCode implementation, different users have same hash-code",leOne.hashCode() == leThree.hashCode());
		assertTrue("Wrong hashCode implementation, same users have NOT same hash-code ",leOne.hashCode() == sameAsLeOne.hashCode());
	}
	
	private class TestIdentity extends TransientIdentity {
		private static final long serialVersionUID = -6603304318632455839L;

		@Override
		public Long getKey() {
			return 100l;
		}

		@Override
		public String getName() {
			return "uniquename100";
		}
	}
}