async def METHOD_NAME(http_client):
    """
    Test a basic API of /
    """
    low = ["invalid request"]
    with pytest.raises(HTTPError) as exc:
        await http_client.fetch(
            "/",
            method="POST",
            body=salt.utils.json.dumps(low),
            connect_timeout=30,
            request_timeout=30,
        )
    assert exc.value.code == 400