library/core/tests/clone.rs

   1 #[test]
   2 #[cfg_attr(not(bootstrap), allow(suspicious_double_ref_op))]
   3 fn test_borrowed_clone() {
   4     let x = 5;
   5     let y: &i32 = &x;
   6     let z: &i32 = (&y).clone();
   7     assert_eq!(*z, 5);
   8 }
   9
  10 #[test]
  11 fn test_clone_from() {
  12     let a = Box::new(5);
  13     let mut b = Box::new(10);
  14     b.clone_from(&a);
  15     assert_eq!(*b, 5);
  16 }