SimpleDisplayableTests.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.uitools;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.Icon;

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

import org.eclipse.persistence.tools.workbench.uitools.Displayable;
import org.eclipse.persistence.tools.workbench.uitools.SimpleDisplayable;
import org.eclipse.persistence.tools.workbench.uitools.swing.EmptyIcon;

public class SimpleDisplayableTests extends TestCase {
    boolean isNotified = false;

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

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

    public void testDisplayString() {
        Displayable d;
        d = new SimpleDisplayable("foo");
        assertEquals("foo", d.displayString());
        d = new SimpleDisplayable(true);
        assertEquals("true", d.displayString());
        d = new SimpleDisplayable('c');
        assertEquals("c", d.displayString());
        d = new SimpleDisplayable((byte) 55);
        assertEquals("55", d.displayString());
        d = new SimpleDisplayable((short) 55);
        assertEquals("55", d.displayString());
        d = new SimpleDisplayable(55);
        assertEquals("55", d.displayString());
        d = new SimpleDisplayable(55L);
        assertEquals("55", d.displayString());
        d = new SimpleDisplayable(55.5);
        assertEquals("55.5", d.displayString());
        d = new SimpleDisplayable(55.5D);
        assertEquals("55.5", d.displayString());
    }

    public void testIconKey() {
        Displayable d = new SimpleDisplayable("foo");
        assertNull(d.icon());
    }

    public void testChangeNotification() {
        SimpleDisplayable sd = new SimpleDisplayable("foo");
        PropertyChangeListener listener = this.buildListener();

        this.isNotified = false;
        sd.addPropertyChangeListener(Displayable.DISPLAY_STRING_PROPERTY, listener);
        sd.setObject("bar");
        assertTrue(this.isNotified);

        this.isNotified = false;
        sd.setObject("bar");
        assertFalse(this.isNotified);        // the display string did not change
        sd.removePropertyChangeListener(Displayable.DISPLAY_STRING_PROPERTY, listener);

        this.isNotified = false;
        sd.addPropertyChangeListener(Displayable.ICON_PROPERTY, listener);
        sd.setObject("baz");
        assertFalse(this.isNotified);        // the icon does not change
        sd.removePropertyChangeListener(Displayable.ICON_PROPERTY, listener);

        // now, test with a custom wrapper
        sd = this.buildCustomDisplayableWrapper("foo");
        this.isNotified = false;
        sd.addPropertyChangeListener(Displayable.ICON_PROPERTY, listener);
        sd.setObject("bazoo");
        assertTrue(this.isNotified);        // now the icon does change
        sd.removePropertyChangeListener(Displayable.ICON_PROPERTY, listener);

    }

    private PropertyChangeListener buildListener() {
        return new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent evt) {
                SimpleDisplayableTests.this.isNotified = true;
            }
        };
    }

    private SimpleDisplayable buildCustomDisplayableWrapper(String string) {
        return new SimpleDisplayable(string) {
            public Icon icon() {
                return new EmptyIcon(((String) this.object).length());
            }
        };
    }

}