stepwise

Macro assert_approx_ne

Source 
macro_rules! assert_approx_ne {
    ($a:expr, $b:expr) => { ... };
    ($a:expr, $b:expr, $tol:expr) => { ... };
}
Expand description

Assert that two values are comparable, but approximately not-equal.

Note that if you compare two slices of different lengths, they will be neither approximately equal, nor approximately not-equal.