Macro assertables::assertable_ne

macro_rules! assertable_ne {
    ($left:expr, $right:expr $(,)?) => { ... };
    ($left:expr, $right:expr, $($arg:tt)+) => { ... };
}

Assert a value is not equal to another.

• When true, return Ok(()).

• When false, return Err with a message and the values of the expressions with their debug representations.

Examples

let x = assertable_ne!(1, 2);
//-> Ok(())
assert_eq!(x.unwrap(), ());

let x = assertable_ne!(1, 1);
//-> Err("…")
// assertable failed: `assertable_ne!(left, right)`
//   left: `1`,
//  right: `1`
assert_eq!(x.unwrap_err(), "assertable failed: `assertable_ne!(left, right)`\n  left: `1`,\n right: `1`".to_string());

This macro has a second form where a custom message can be provided.