public void Constructor3()
        {
            AnnotationPathPoint app = new AnnotationPathPoint(5, 5, 2);

            Assert.AreEqual(5, app.X, "A1");
            Assert.AreEqual(5, app.Y, "A2");
            Assert.AreEqual(null, app.Tag, "A3");
        }
        public void YProperty()
        {
            AnnotationPathPoint app = new AnnotationPathPoint();

            Assert.AreEqual(0, app.Y, "A1");

            app.Y = 5;
            Assert.AreEqual(5, app.Y, "A2");

            app.Y = -5;
            Assert.AreEqual(-5, app.Y, "A3");
        }