How to use the schemathesis.Case function in schemathesis

def test_keyboard_interrupt(cli, cli_args, base_url, mocker, flask_app, swagger_20, workers):
    # When a Schemathesis run in interrupted by keyboard or via SIGINT
    endpoint = Endpoint("/success", "GET", {}, swagger_20, base_url=base_url)
    if len(cli_args) == 2:
        endpoint.app = flask_app
        original = Case(endpoint).call_wsgi
    else:
        original = Case(endpoint).call
    counter = 0

    def mocked(*args, **kwargs):
        nonlocal counter
        counter += 1
        if counter > 1:
            # For threaded case it emulates SIGINT for the worker thread
            raise KeyboardInterrupt
        return original(*args, **kwargs)

    if len(cli_args) == 2:
        mocker.patch("schemathesis.Case.call_wsgi", wraps=mocked)
    else:
        mocker.patch("schemathesis.Case.call", wraps=mocked)

def test_keyboard_interrupt(cli, cli_args, base_url, mocker, flask_app, swagger_20, workers):
    # When a Schemathesis run in interrupted by keyboard or via SIGINT
    endpoint = Endpoint("/success", "GET", {}, swagger_20, base_url=base_url)
    if len(cli_args) == 2:
        endpoint.app = flask_app
        original = Case(endpoint).call_wsgi
    else:
        original = Case(endpoint).call
    counter = 0

    def mocked(*args, **kwargs):
        nonlocal counter
        counter += 1
        if counter > 1:
            # For threaded case it emulates SIGINT for the worker thread
            raise KeyboardInterrupt
        return original(*args, **kwargs)

    if len(cli_args) == 2:
        mocker.patch("schemathesis.Case.call_wsgi", wraps=mocked)
    else:
        mocker.patch("schemathesis.Case.call", wraps=mocked)
    result = cli.run(*cli_args, f"--workers={workers}")
    assert result.exit_code == ExitCode.OK

def test_not_wsgi(schema):
    case = Case(schema.endpoints["/api/success"]["GET"])
    case.endpoint.app = None
    with pytest.raises(
        RuntimeError,
        match="WSGI application instance is required. "
        "Please, set `app` argument in the schema constructor or pass it to `call_wsgi`",
    ):
        case.call_wsgi()