1 files changed, 11 insertions, 0 deletions
diff --git a/src/test/ui/generics/generic-unique.rs b/src/test/ui/generics/generic-unique.rs
new file mode 100644
index 000000000..2f34712ec
--- /dev/null
+++ b/src/test/ui/generics/generic-unique.rs
@@ -0,0 +1,11 @@
+// run-pass
+#![allow(dead_code)]
+
+struct Triple<T> { x: T, y: T, z: T }
+
+fn box_it<T>(x: Triple<T>) -> Box<Triple<T>> { return Box::new(x); }
+
+pub fn main() {
+    let x: Box<Triple<isize>> = box_it::<isize>(Triple{x: 1, y: 2, z: 3});
+    assert_eq!(x.y, 2);
+}