1 files changed, 6 insertions, 0 deletions
diff --git a/library/core/tests/lazy.rs b/library/core/tests/lazy.rs
index 70fcc6d2d..c7c3c479b 100644
--- a/library/core/tests/lazy.rs
+++ b/library/core/tests/lazy.rs
@@ -106,6 +106,12 @@ fn lazy_new() {
     assert_eq!(called.get(), 1);
 }
 
+// Check that we can infer `T` from closure's type.
+#[test]
+fn lazy_type_inference() {
+    let _ = LazyCell::new(|| ());
+}
+
 #[test]
 fn aliasing_in_get() {
     let x = OnceCell::new();