def test_permutations(first_point: BoundPoint, second_point: BoundPoint,
third_point: BoundPoint) -> None:
result = sign(first_point, second_point, third_point)
points = [first_point, second_point, third_point]
assert all(
sign(*permute(points, permutation)) == (
result if is_even_permutation(permutation) else -result)
for permutation in permutations(range(3)))
def test_permutations(points_triplet: PortedPointsTriplet) -> None:
first_point, second_point, third_point = points_triplet
result = sign(first_point, second_point, third_point)
points = [first_point, second_point, third_point]
assert all(
sign(*permute(points, permutation)) == (
result if is_even_permutation(permutation) else -result)
for permutation in permutations(range(3)))
def test_endpoints_permutations(context_with_points_quadruplet: Tuple[
Context, PointsQuadruplet], first_index: int, second_index: int) -> None:
context, points_quadruplet = context_with_points_quadruplet
first_start, first_end, second_start, second_end = points_quadruplet
result = context.dot_product(first_start, first_end, second_start,
second_end)
result_sign = to_sign(result)
first_endpoints = first_start, first_end
second_endpoints = second_start, second_end
assert (to_sign(
context.dot_product(
*permute(first_endpoints, first_index),
*permute(
second_endpoints,
second_index))) == (result_sign if equivalence(
is_even_permutation(first_index, len(first_endpoints)),
is_even_permutation(second_index, len(second_endpoints)))
else -result_sign))
def test_permutations(context_with_points_triplet: Tuple[Context,
PointsTriplet],
index: int) -> None:
context, points_triplet = context_with_points_triplet
vertex, first_ray_point, second_ray_point = points_triplet
result = context.angle_orientation(vertex, first_ray_point,
second_ray_point)
assert (context.angle_orientation(*permute(points_triplet, index)) is
(result if is_even_permutation(index, len(points_triplet)) else
Orientation(-result)))
def test_permutations(context_with_points_quadruplet: Tuple[Context,
PointsQuadruplet],
index: int) -> None:
context, points_quadruplet = context_with_points_quadruplet
point, first_point, second_point, third_point = points_quadruplet
result = context.locate_point_in_point_point_point_circle(
point, first_point, second_point, third_point)
assert (context.locate_point_in_point_point_point_circle(
*permute(points_quadruplet, index))
is (result
if is_even_permutation(index, len(points_quadruplet))
else to_opposite_location(result)))