Macro k9::assert_lesser_than

macro_rules! assert_lesser_than {
    ($left:expr, $right:expr) => { ... };
    ($left:expr, $right:expr, $description:expr) => { ... };
}

Asserts if left is lesser than right. panics if they are not

use k9::assert_lesser_than;

assert_lesser_than!(1, 2);