1 files changed, 10 insertions, 0 deletions
diff --git a/src/test/ui/generics/generic-alias-unique.rs b/src/test/ui/generics/generic-alias-unique.rs
new file mode 100644
index 000000000..fc1383986
--- /dev/null
+++ b/src/test/ui/generics/generic-alias-unique.rs
@@ -0,0 +1,10 @@
+// run-pass
+
+fn id<T:Send>(t: T) -> T { return t; }
+
+pub fn main() {
+    let expected: Box<_> = Box::new(100);
+    let actual = id::<Box<isize>>(expected.clone());
+    println!("{}", *actual);
+    assert_eq!(*expected, *actual);
+}