new_contents: from compas.geometry import Point
  from compas.geometry import Scale
  from compas.geometry import Sphere
  
  
  def test_sphere_scaling():
      s = Sphere(Point(1, 1, 1), 10)
      s.transform(Scale([2, 3, 4]))
      assert s.point.x == 2
      assert s.point.y == 3
      assert s.point.z == 4
      assert s.radius == 40
  
subject: add sphere scaling test file