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

Constructs a new set of tests.

Parameters:

name - the name of the tests.

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

Returns the tests as a test suite.

 public  void testEqualLine2Ds() 
{
        
        // LINE2D
        assertTrue(ShapeUtilities.equal((Line2D) null, (Line2D) null));
        Line2D l1 = new Line2D.Float(1.0f, 2.0f, 3.0f, 4.0f);
        Line2D l2 = new Line2D.Float(1.0f, 2.0f, 3.0f, 4.0f);
        assertTrue(ShapeUtilities.equal(l1, l2));
        l1 = new Line2D.Float(4.0f, 3.0f, 2.0f, 1.0f);
        assertFalse(ShapeUtilities.equal(l1, l2));
        l2 = new Line2D.Float(4.0f, 3.0f, 2.0f, 1.0f);
        assertTrue(ShapeUtilities.equal(l1, l2));
        l1 = new Line2D.Double(4.0f, 3.0f, 2.0f, 1.0f);
        assertTrue(ShapeUtilities.equal(l1, l2));
}

Tests the equal() method.

 public  void testEqualShapes() 
{
        
        // NULL
        Shape s1 = null;
        Shape s2 = null;
        assertTrue(ShapeUtilities.equal(s1, s2));
        // LINE2D
        s1 = new Line2D.Double(1.0, 2.0, 3.0, 4.0);
        assertFalse(ShapeUtilities.equal(s1, s2));
        s2 = new Line2D.Double(1.0, 2.0, 3.0, 4.0);
        assertTrue(ShapeUtilities.equal(s1, s2));
        assertFalse(s1.equals(s2));        
        // RECTANGLE2D
        s1 = new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0);
        assertFalse(ShapeUtilities.equal(s1, s2));
        s2 = new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0);
        assertTrue(ShapeUtilities.equal(s1, s2));
        assertTrue(s1.equals(s2));  // Rectangle2D overrides equals()
        // ELLIPSE2D
        s1 = new Ellipse2D.Double(1.0, 2.0, 3.0, 4.0);
        assertFalse(ShapeUtilities.equal(s1, s2));
        s2 = new Ellipse2D.Double(1.0, 2.0, 3.0, 4.0);
        assertTrue(ShapeUtilities.equal(s1, s2));
        assertFalse(s1.equals(s2));  
        // ARC2D
        s1 = new Arc2D.Double(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, Arc2D.PIE);
        assertFalse(ShapeUtilities.equal(s1, s2));
        s2 = new Arc2D.Double(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, Arc2D.PIE);
        assertTrue(ShapeUtilities.equal(s1, s2));
        assertFalse(s1.equals(s2));
        // POLYGON
        Polygon p1 = new Polygon(new int[] {0, 1, 0}, new int[] {1, 0, 1}, 3);
        Polygon p2 = new Polygon(new int[] {1, 1, 0}, new int[] {1, 0, 1}, 3);
        s1 = p1;
        s2 = p2;
        assertFalse(ShapeUtilities.equal(s1, s2));
        p2 = new Polygon(new int[] {0, 1, 0}, new int[] {1, 0, 1}, 3);
        s2 = p2;
        assertTrue(ShapeUtilities.equal(s1, s2));        
        // GENERALPATH
        GeneralPath g1 = new GeneralPath();
        g1.moveTo(1.0f, 2.0f);
        g1.lineTo(3.0f, 4.0f);
        g1.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
        g1.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
        g1.closePath();
        s1 = g1;
        assertFalse(ShapeUtilities.equal(s1, s2));
        GeneralPath g2 = new GeneralPath();
        g2.moveTo(1.0f, 2.0f);
        g2.lineTo(3.0f, 4.0f);
        g2.curveTo(5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f);
        g2.quadTo(1.0f, 2.0f, 3.0f, 4.0f);
        g2.closePath();
        s2 = g2;
        assertTrue(ShapeUtilities.equal(s1, s2));
        assertFalse(s1.equals(s2));
}

Some checks for the equal(Shape, Shape) method.

 public  void testIntersects() 
{
    final Rectangle2D r1 = new Rectangle2D.Float(0, 0, 100, 100);
    final Rectangle2D r2 = new Rectangle2D.Float(0, 0, 100, 100);
    assertTrue(ShapeUtilities.intersects(r1, r2));
    r1.setRect(100, 0, 100, 0);
    assertTrue(ShapeUtilities.intersects(r1, r2));
    assertTrue(ShapeUtilities.intersects(r2, r1));
    r1.setRect(0, 0, 0, 0);
    assertTrue(ShapeUtilities.intersects(r1, r2));
    assertTrue(ShapeUtilities.intersects(r2, r1));
    r1.setRect(50, 50, 10, 0);
    assertTrue(ShapeUtilities.intersects(r1, r2));
    assertTrue(ShapeUtilities.intersects(r2, r1));
}

Some checks for the intersects() method,