def test_coordinate_operation__from_authority__empty():
with pytest.raises(CRSError, match="Invalid authority"):
CoordinateOperation.from_authority("BOB", 4326)
def test_coordinate_operation__from_authority():
cc = CoordinateOperation.from_authority("EPSG", 16031)
assert cc.method_auth_name == "EPSG"
assert cc.method_code == "9807"
