pub fn none() -> NoneMatcherExpand description
Matches an Option containing None.
verify_that!(None::<()>, none())?; // Passes
verify_that!(Some("Some value"), none())?; // Failspub fn none() -> NoneMatcherMatches an Option containing None.
verify_that!(None::<()>, none())?; // Passes
verify_that!(Some("Some value"), none())?; // Fails