def test_non_coule():
    plateau = Plateau(15, 15, 3)
    plateau.set_xyz(2, 2, 2, "sous_marin")
    assert plateau.check_coule("sous_marin") == 0
def test_coule():
    plateau = Plateau(15, 15, 3)
    assert plateau.check_coule("sous_marin") == 1