public void ShouldComputeNormalOnCone(float pX, float pY, float pZ, float nX, float nY, float nZ)
{
var shape = new Cone();
var n = shape.GetLocalNormalAt(CreatePoint(pX, pY, pZ));
AssertActualEqualToExpected(n, CreateVector(nX, nY, nZ));
}
