[−][src]Function un_algebra::tests::result::maybe_err
pub fn maybe_err<T, E>(t: T, e: E) -> MaybeErr<T, E> where
E: Strategy,
T: Strategy,
Create a strategy for Result
s where Ok
values are taken from t
and
Err
values are taken from e
.
Ok
and Err
are chosen with equal probability.
Generated values shrink to Ok
.