CounterTests.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 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.utility;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.persistence.tools.workbench.utility.Counter;

public class CounterTests extends TestCase {

    public static Test suite() {
        return new TestSuite(CounterTests.class);
    }

    public CounterTests(String name) {
        super(name);
    }

    public void testCtors() {
        Counter counter;
        counter = new Counter();
        assertEquals(0, counter.count());
        counter = new Counter(7);
        assertEquals(7, counter.count());
        counter = new Counter(-7);
        assertEquals(-7, counter.count());
    }

    public void testIncrement() {
        Counter counter;
        int count;
        counter = new Counter();
        assertEquals(0, counter.count());

        count = counter.increment(3);
        assertEquals(3, count);
        assertEquals(3, counter.count());

        count = counter.increment();
        assertEquals(4, count);
        assertEquals(4, counter.count());

        count = counter.increment(-7);
        assertEquals(-3, count);
        assertEquals(-3, counter.count());
    }

    public void testDecrement() {
        Counter counter;
        int count;
        counter = new Counter();
        assertEquals(0, counter.count());

        count = counter.decrement(3);
        assertEquals(-3, count);
        assertEquals(-3, counter.count());

        count = counter.decrement();
        assertEquals(-4, count);
        assertEquals(-4, counter.count());

        count = counter.decrement(-7);
        assertEquals(3, count);
        assertEquals(3, counter.count());
    }

    public void testClone() {
        Counter counter = new Counter(44);
        Counter counter2 = (Counter) counter.clone();
        assertEquals(44, counter2.count());
        assertEquals(counter, counter2);
        assertNotSame(counter, counter2);
    }

    public void testEquals() {
        Counter counter = new Counter(44);
        Counter counter2 = new Counter(44);
        assertEquals(counter, counter2);
        assertEquals(counter.hashCode(), counter2.hashCode());
    }

    public void testSerialization() throws Exception {
        Counter counter = new Counter(44);
        Counter counter2 = (Counter) TestTools.serialize(counter);
        assertEquals(44, counter2.count());
        assertEquals(counter, counter2);
        assertNotSame(counter, counter2);
    }

}