import typing as t

from hypothesis import given

from rene.exact import Contour
from tests.utils import equivalence
from . import strategies


@given(strategies.polygons_holes)
def test_irreflexivity(holes: t.Sequence[Contour]) -> None:
    assert not holes != holes


@given(strategies.polygons_holes, strategies.polygons_holes)
def test_symmetry(first: t.Sequence[Contour],
                  second: t.Sequence[Contour]) -> None:
    assert equivalence(first != second, second != first)


@given(strategies.polygons_holes, strategies.polygons_holes)
def test_equivalents(first: t.Sequence[Contour],
                     second: t.Sequence[Contour]) -> None:
    assert equivalence(first != second, not first == second)