1 files changed, 10 insertions, 0 deletions
diff --git a/src/test/ui/unboxed-closures/unboxed-closures-simple.rs b/src/test/ui/unboxed-closures/unboxed-closures-simple.rs
new file mode 100644
index 000000000..144955402
--- /dev/null
+++ b/src/test/ui/unboxed-closures/unboxed-closures-simple.rs
@@ -0,0 +1,10 @@
+// run-pass
+#![allow(unused_mut)]
+#![allow(unused_imports)]
+use std::ops::FnMut;
+
+pub fn main() {
+    let mut f = |x: isize, y: isize| -> isize { x + y };
+    let z = f(1, 2);
+    assert_eq!(z, 3);
+}