Macro quickcheck::quickcheck
source · macro_rules! quickcheck { (@as_items $($i:item)*) => { ... }; { $( $(#[$m:meta])* fn $fn_name:ident($($arg_name:ident : $arg_ty:ty),*) -> $ret:ty { $($code:tt)* } )* } => { ... }; }
Expand description
A macro for writing quickcheck tests.
This macro takes as input one or more property functions to test, and
produces a proper #[test]
function for each property. If the property
fails, the behavior is as if quickcheck
were called on the property
(i.e., it panics and fails the test).
Note that this macro doesn’t support mut
or patterns in parameters.
Example
quickcheck! {
fn prop_reverse_reverse(xs: Vec<usize>) -> bool {
let rev: Vec<_> = xs.clone().into_iter().rev().collect();
let revrev: Vec<_> = rev.into_iter().rev().collect();
xs == revrev
}
};