CopyValueSampleObjectTest.java

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package org.jcoderz.commons.types.samples;

import java.util.Date;

import junit.framework.TestCase;

/**
 * Test class for {@link CopyValueSampleObject}.
 * @author Andreas Mandel
 */
public class CopyValueSampleObjectTest
    extends TestCase
{
    /** Check value modifications on a cloned object. */
    public void testClonedValue ()
    {
        final Date date = new Date();
        final BarValueObject bar
            = new BarValueObject(org.jcoderz.commons.types.Date.now());
        final CopyValueSampleObject test = new CopyValueSampleObject(date, bar);

        assertNotSame("Mutable object should have been cloned.",
            date, test.getModificationDate());

        date.setTime(0);
        assertFalse("Modification of date must not be propagated.",
            test.getModificationDate().getTime() == date.getTime());
    }

    /** Check value modifications on a object copied via copy constructor. */
    public void testCopyConstructorValue ()
    {
        final Date date = new Date();
        final BarValueObject bar
            = new BarValueObject(org.jcoderz.commons.types.Date.now());
        bar.setId(0);
        final CopyValueSampleObject test = new CopyValueSampleObject(date, bar);

        assertNotSame("Mutable object should have been cloned.",
            bar, test.getSampleBar());

        bar.setId(1);
        assertFalse("Modification of bar must not be propagated.",
            test.getSampleBar().getId() == bar.getId());
    }

    /** Check value modifications on a cloned object which is initialized with null. */
    public void testClonedValueNullInit ()
    {
        final Date date = new Date();
        final BarValueObject bar
            = new BarValueObject(org.jcoderz.commons.types.Date.now());
        final CopyValueSampleObject test = new CopyValueSampleObject(null, bar);
        test.setModificationDate(date);
        assertEquals("Object should be set and equal.", date, test.getModificationDate());
    }
}