Macro repeated_assert 

macro_rules! repeated_assert {
    ($repetitions:expr, $delay:expr; $($tt:tt)*) => { ... };
    ($repetitions:expr, $delay:expr, $repetitions_catch:expr, $catch:block; $($tt:tt)*) => { ... };
}

👎Deprecated since 0.2.0: Use repeated_assert::that or repeated_assert::with_catch instead.

An assertion macro that tries to assert expressions multiple times

Examples

Wait for a file to appear, calculate the checksum and then assert the checksum is to equal to 1234 (re-try up to 10 times, wait 50 ms between tries)

repeated_assert!{ 10, Duration::from_millis(50);
    if Path::new("should_appear_soon.txt").exists();
    let checksum = crc("should_appear_soon.txt");
    eq checksum, 1234;
};