src/libcore/tests/bool.rs

   1 #[test]
   2 fn test_bool_to_option() {
   3     assert_eq!(false.then_some(0), None);
   4     assert_eq!(true.then_some(0), Some(0));
   5     assert_eq!(false.then(|| 0), None);
   6     assert_eq!(true.then(|| 0), Some(0));
   7 }