src/libcore/tests/intrinsics.rs

   1 use core::any::TypeId;
   2
   3 #[test]
   4 fn test_typeid_sized_types() {
   5     struct X;
   6     struct Y(u32);
   7
   8     assert_eq!(TypeId::of::<X>(), TypeId::of::<X>());
   9     assert_eq!(TypeId::of::<Y>(), TypeId::of::<Y>());
  10     assert!(TypeId::of::<X>() != TypeId::of::<Y>());
  11 }
  12
  13 #[test]
  14 fn test_typeid_unsized_types() {
  15     trait Z {}
  16     struct X(str);
  17     struct Y(dyn Z + 'static);
  18
  19     assert_eq!(TypeId::of::<X>(), TypeId::of::<X>());
  20     assert_eq!(TypeId::of::<Y>(), TypeId::of::<Y>());
  21     assert!(TypeId::of::<X>() != TypeId::of::<Y>());
  22 }