"""Util functions for tavern."""

import requests

from grass.consts import headers


def assert_key_not_in_headers(response: requests.Response, header_key: str) -> None:
    """Assert absence of header."""
    assert header_key not in response.headers


def assert_unauthorized_by_grass(response: requests.Response) -> None:
    """Assert request is unauthorized by grass."""
    assert headers.GRASS_RESPONSE_UNAUTHORIZED_REASON in response.text