@Test
public void testVerticalSymmetry() {
IPoint pt = ShapeFactory.createPoint(10., 10.);
assertNull(pt.verticalSymmetry(null));
assertNull(pt.verticalSymmetry(ShapeFactory.createPoint(Double.NaN, 1.)));
assertNull(pt.verticalSymmetry(ShapeFactory.createPoint(1., Double.NaN)));
assertNull(pt.verticalSymmetry(ShapeFactory.createPoint(Double.POSITIVE_INFINITY, 1.)));
assertNull(pt.verticalSymmetry(ShapeFactory.createPoint(1., Double.POSITIVE_INFINITY)));
assertNull(pt.verticalSymmetry(ShapeFactory.createPoint(Double.NEGATIVE_INFINITY, 1.)));
assertNull(pt.verticalSymmetry(ShapeFactory.createPoint(1., Double.NEGATIVE_INFINITY)));
assertEquals(
pt.verticalSymmetry(ShapeFactory.createPoint(0., 0.)), ShapeFactory.createPoint(10., -10.));
assertEquals(
pt.verticalSymmetry(ShapeFactory.createPoint(18780., 0.)),
ShapeFactory.createPoint(10., -10.));
assertEquals(
ShapeFactory.createPoint(10., -10.).verticalSymmetry(ShapeFactory.createPoint(18780., 0.)),
pt);
assertEquals(
ShapeFactory.createPoint(0., 0.).verticalSymmetry(ShapeFactory.createPoint(0., 0.)),
ShapeFactory.createPoint(0., 0.));
}
