Function un_algebra::tests::prop::result::maybe_ok

pub fn maybe_ok<T, E>(t: T, e: E) -> MaybeOk<T, E> where
    E: Strategy,
    T: Strategy, 

Create a strategy for Results 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 Err.