Macro assert_stays 

macro_rules! assert_stays {
    ($decision:expr) => { ... };
}

Asserts that a decision stays in the current mode.

Produces a clear failure message when the assertion fails.

Examples

use ready_active_safe::prelude::*;
use ready_active_safe::assert_stays;

let d: Decision<&str, ()> = stay();
assert_stays!(d);