def test_magnitude_of_normalized_vector(self):
v = Vector(1, 2, 3)
assert v.normalize().magnitude == 1
def test_normalize(self):
v = Vector(4, 0, 0)
assert v.normalize() == Vector(1, 0, 0)
def test_normalize2(self):
v = Vector(1, 2, 3)
assert v.normalize() == Vector(0.26726, 0.53452, 0.80178)