public void Test_Equals()
{
var point = new Point(2, 5, 9);
var equalPoint = new Point(2, 5, 9);
var unequalPoint = new Point(1, 2, 3);
Assert.AreEqual(point, equalPoint);
Assert.AreNotEqual(point, unequalPoint);
Assert.AreNotEqual(point, null);
Assert.AreNotEqual(point, new object());
}