def test_right_neutral_element(empty_multipolygon_with_multipolygon
: MultipolygonsPair) -> None:
empty_multipolygon, multipolygon = empty_multipolygon_with_multipolygon
result = unite_multipolygons(multipolygon, empty_multipolygon)
assert are_multipolygons_similar(result, multipolygon)
def test_left_neutral_element(
empty_multipolygon_with_multipolygon: MultipolygonsPair) -> None:
empty_multipolygon, multipolygon = empty_multipolygon_with_multipolygon
result = symmetric_subtract_multipolygons(empty_multipolygon, multipolygon)
assert are_multipolygons_similar(result, multipolygon)
def test_absorption_identity(multipolygons_pair: MultipolygonsPair) -> None:
left_multipolygon, right_multipolygon = multipolygons_pair
result = intersect_multipolygons(left_multipolygon,
unite_multipolygons(left_multipolygon,
right_multipolygon))
assert are_multipolygons_similar(result, left_multipolygon)
def test_equivalents(multipolygons_pair: MultipolygonsPair) -> None:
left_multipolygon, right_multipolygon = multipolygons_pair
result = intersect_multipolygons(left_multipolygon, right_multipolygon)
assert are_multipolygons_similar(
result,
subtract_multipolygons(left_multipolygon,
subtract_multipolygons(left_multipolygon,
right_multipolygon)))
def test_repeated(multipolygons_triplet: MultipolygonsTriplet) -> None:
(left_multipolygon, mid_multipolygon,
right_multipolygon) = multipolygons_triplet
result = symmetric_subtract_multipolygons(
symmetric_subtract_multipolygons(left_multipolygon, mid_multipolygon),
symmetric_subtract_multipolygons(mid_multipolygon, right_multipolygon))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(left_multipolygon,
right_multipolygon))
def test_associativity(multipolygons_triplet: MultipolygonsTriplet) -> None:
(left_multipolygon, mid_multipolygon,
right_multipolygon) = multipolygons_triplet
result = unite_multipolygons(unite_multipolygons(left_multipolygon,
mid_multipolygon),
right_multipolygon)
assert are_multipolygons_similar(
result,
unite_multipolygons(left_multipolygon,
unite_multipolygons(mid_multipolygon,
right_multipolygon)))
def test_associativity(multipolygons_triplet: MultipolygonsTriplet) -> None:
(left_multipolygon, mid_multipolygon,
right_multipolygon) = multipolygons_triplet
result = symmetric_subtract_multipolygons(
symmetric_subtract_multipolygons(left_multipolygon, mid_multipolygon),
right_multipolygon)
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
left_multipolygon,
symmetric_subtract_multipolygons(mid_multipolygon,
right_multipolygon)))
def test_difference_operand(multipolygons_triplet: MultipolygonsTriplet
) -> None:
(left_multipolygon, mid_multipolygon,
right_multipolygon) = multipolygons_triplet
result = unite_multipolygons(subtract_multipolygons(left_multipolygon,
mid_multipolygon),
right_multipolygon)
assert are_multipolygons_similar(
result,
subtract_multipolygons(unite_multipolygons(left_multipolygon,
right_multipolygon),
subtract_multipolygons(mid_multipolygon,
right_multipolygon)))
def test_distribution_over_intersection(multipolygons_triplet
: MultipolygonsTriplet) -> None:
(left_multipolygon, mid_multipolygon,
right_multipolygon) = multipolygons_triplet
result = unite_multipolygons(left_multipolygon,
intersect_multipolygons(mid_multipolygon,
right_multipolygon))
assert are_multipolygons_similar(
result,
intersect_multipolygons(unite_multipolygons(left_multipolygon,
mid_multipolygon),
unite_multipolygons(left_multipolygon,
right_multipolygon)))
def test_reversals(multipolygons_pair: MultipolygonsPair) -> None:
left_multipolygon, right_multipolygon = multipolygons_pair
result = symmetric_subtract_multipolygons(left_multipolygon,
right_multipolygon)
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
reverse_multipolygon(left_multipolygon), right_multipolygon))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
left_multipolygon, reverse_multipolygon(right_multipolygon)))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
reverse_multipolygon_borders(left_multipolygon),
right_multipolygon))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
left_multipolygon,
reverse_multipolygon_borders(right_multipolygon)))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
reverse_multipolygon_holes(left_multipolygon), right_multipolygon))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
left_multipolygon, reverse_multipolygon_holes(right_multipolygon)))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
reverse_multipolygon_holes_contours(left_multipolygon),
right_multipolygon))
assert are_multipolygons_similar(
result,
symmetric_subtract_multipolygons(
left_multipolygon,
reverse_multipolygon_holes_contours(right_multipolygon)))
def test_idempotence(multipolygon: Multipolygon) -> None:
result = intersect_multipolygons(multipolygon, multipolygon)
assert are_multipolygons_similar(result, multipolygon)
