def test_sharpening():
pencil = Pencil(initial_length=1000, point_value=10)
[pencil.dull("C") for _ in range(5)]
assert pencil.point == 0
pencil.sharpen()
assert pencil.point == 10
def test_sharpening():
pencil = Pencil(initial_length=1000, point_value=10)
[pencil.dull("C") for _ in range(5)]
assert pencil.point == 0
pencil.sharpen()
assert pencil.point == 10
