/*******************************************************************************
* Copyright (c) 2007, 2009 IBM Corporation 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:
* IBM Corporation - initial API and implementation
******************************************************************************/
package org.eclipse.core.tests.internal.databinding;
import org.eclipse.core.internal.databinding.observable.Queue;
import junit.framework.TestCase;
/**
* @since 3.2
*
*/
public class QueueTest extends TestCase {
private Queue queue;
@Override
protected void setUp() throws Exception {
this.queue = new Queue();
}
public void testIsEmpty() {
assertTrue(queue.isEmpty());
queue.enqueue("foo");
assertFalse(queue.isEmpty());
queue.enqueue("bar");
assertFalse(queue.isEmpty());
queue.dequeue();
assertFalse(queue.isEmpty());
queue.dequeue();
assertTrue(queue.isEmpty());
}
public void testEnqueueAndDequeue() {
try {
queue.dequeue();
fail("expected IllegalStateException");
} catch(IllegalStateException ex) {
// expected
}
queue.enqueue("foo");
assertEquals("foo", queue.dequeue());
try {
queue.dequeue();
fail("expected IllegalStateException");
} catch(IllegalStateException ex) {
// expected
}
queue.enqueue("foo");
queue.enqueue("bar");
queue.dequeue();
queue.enqueue("bas");
queue.enqueue("moo");
assertEquals("bar", queue.dequeue());
assertEquals("bas", queue.dequeue());
assertEquals("moo", queue.dequeue());
assertTrue(queue.isEmpty());
}
}