def test_compute_regular_polygon_vertices_input_error_handling(
n_sides, bounding_circle, rotation, expected_error, error_message):
with pytest.raises(expected_error) as e:
ImageDraw._compute_regular_polygon_vertices(bounding_circle, n_sides,
rotation)
assert str(e.value) == error_message
def test_compute_regular_polygon_vertices(n_sides, expected_vertices):
bounding_circle = (W // 2, H // 2, 25)
vertices = ImageDraw._compute_regular_polygon_vertices(
bounding_circle, n_sides, 0)
assert vertices == expected_vertices
