Method poll_for_or_raise_timeout

reflex/testing.py:749–778

Poll target callable for a truthy return value. Like `_poll_for`, but raises a `TimeoutError` if the target does not return a truthy value within the timeout. Args: target: callable that returns truthy if polling condition is met. timeout: max pollin

(
        target: Callable[[], T],
        timeout: TimeoutType = None,
        step: TimeoutType = None,
    )

    @staticmethod
    def poll_for_or_raise_timeout(
        target: Callable[[], T],
        timeout: TimeoutType = None,
        step: TimeoutType = None,
    ) -> T:
        """Poll target callable for a truthy return value.

        Like `_poll_for`, but raises a `TimeoutError` if the target does not
        return a truthy value within the timeout.

        Args:
            target: callable that returns truthy if polling condition is met.
            timeout: max polling time
            step: interval between checking target()

        Returns:
            return value of target() if truthy within timeout

        Raises:
            TimeoutError: when target does not return a truthy value within timeout
        """
        result = AppHarness._poll_for(
            target=target,
            timeout=timeout,
            step=step,
        )
        if result is False:
            msg = "Target did not return a truthy value while polling."
            raise TimeoutError(msg)
        return result

    @staticmethod
    def expect(