async def test_3e3a(http_client):
    """
    MAY use 400 status code if parameters are invalid
    """
    response = await http_client.post(
        url="/graphql",
        headers={"Content-Type": "application/json"},
        json={"qeury": "{ __typename }"},  # typo in 'query'
    )
    assert response.status_code == 400

    MAY use 400 status code if parameters are invalid
    
tests/http/test_graphql_over_http_spec.py