import typing as t

from hypothesis import given

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


@given(strategies.polygons_holes)
def test_determinism(holes: t.Sequence[Contour]) -> None:
    result = hash(holes)

    assert result == hash(holes)


@given(strategies.polygons_holes, strategies.polygons_holes)
def test_preserving_equality(first: t.Sequence[Contour],
                             second: t.Sequence[Contour]) -> None:
    assert implication(first == second, hash(first) == hash(second))