Macro k9::assert_err[−][src]

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

Expand description

Asserts if value is Err(E). panics if it is not

use k9::assert_err;

let result: Result<(), _> = Err("invalid path");
assert_err!(result);