org.aspectj/docs/teaching/exercises/tests/Test4b.java

/* *******************************************************************
 * Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
 * 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:
 *     PARC     initial implementation
 * ******************************************************************/

package tests;

import figures.*;
import java.awt.Rectangle;

import junit.framework.*;

public class Test4b extends CoreTest {

    public static void main(String[] args) {
        junit.textui.TestRunner.run(Test4b.class);
    }

    public void testBasicEquality() {
        assertTrue(g.getBounds() == g.getBounds());
    }

    public void testEqualityAfterAddition() {
        Point p0 = new Point(1, 2);
        Point p1 = new Point(2, 3);

        Group g0 = new Group(p0);
        Group g1 = new Group(p1);

        Rectangle r0 = g0.getBounds();
        Rectangle r1 = g1.getBounds();
        assertTrue(r0 != r1);
        g0.add(new Point(37, 90));
        assertTrue(g0.getBounds() == r0);
        assertTrue(g1.getBounds() != r0);
        assertTrue(g0.getBounds() != r1);
        assertTrue(g1.getBounds() == r1);

        g1.add(new Point(4, 8));
        assertTrue(g0.getBounds() == r0);
        assertTrue(g1.getBounds() != r0);
        assertTrue(g0.getBounds() != r1);
        assertTrue(g1.getBounds() == r1);
    }

    public void testNotWholeCanvas() {
        assertTrue("bounds for this group should not be the whole canvas",
            g.getBounds().getWidth() < FigureElement.MAX_BOUNDS.getWidth());
        assertTrue("bounds for this group should not be the whole canvas",
            g.getBounds().getHeight() < FigureElement.MAX_BOUNDS.getHeight());
    }
}