Macro wait_for 

macro_rules! wait_for {
    ($condition:expr, $timeout:expr, $poll_interval:expr, $msg:expr) => { ... };
}

A macro that waits for a condition to be met, polling at a regular interval.

This macro is useful for testing asynchronous operations where you need to wait for a state change. It will repeatedly execute the provided $condition closure until it returns Some(value) or the $timeout is reached.

Arguments

• $condition: A closure that returns Option<T>. When it returns Some(T), the macro returns that value.
• $timeout: A std::time::Duration specifying the maximum time to wait.
• $poll_interval: A std::time::Duration specifying how often to poll the condition.
• $msg: A message to include in the panic if the macro times out.

Panics

Panics if the $timeout is reached before the $condition returns Some(T). The panic message includes the total elapsed time, the number of checks performed, the poll interval, and the provided $msg.

Example

use rust_test_framework::wait_for;
use std::time::Duration;

let result = wait_for!(
    || Some(42),
    Duration::from_secs(1),
    Duration::from_millis(10),
    "should not time out"
);
assert_eq!(result, 42);