def test_distance_again(self):
pt1 = data.Point(4, 10, 7)
pt2 = data.Point(9, 7, -3)
d = cast.distance(pt1, pt2)
self.assertAlmostEqual(d, math.sqrt(134))
def test_distance(self):
pt1 = data.Point(0, 5, 6)
pt2 = data.Point(0, 2, 2)
d = cast.distance(pt1, pt2)
self.assertAlmostEqual(d, 5)
