Method _poll_for

reflex/testing.py:505–532

Generic polling logic. 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 F

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

    @staticmethod
    def _poll_for(
        target: Callable[[], T],
        timeout: TimeoutType = None,
        step: TimeoutType = None,
    ) -> T | Literal[False]:
        """Generic polling logic.

        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
            False if timeout elapses
        """
        if timeout is None:
            timeout = DEFAULT_TIMEOUT
        if step is None:
            step = POLL_INTERVAL
        deadline = time.time() + timeout
        while time.time() < deadline:
            with contextlib.suppress(Exception):
                success = target()
                if success:
                    return success
            time.sleep(step)
        return False

    @staticmethod
    async def _poll_for_async(