common_testing::assert

Function err

Source 
pub fn err<T, E>(a: &Result<T, E>)
where
    T: Debug,
    E: Debug,
Expand description

Assert that the value is err.

ยงExample

use common_testing::assert;

#[test]
fn test_1() {
 let result = Err("abc");
 assert::err(&result);
}