diff --git a/single_file_tests/closure.rs b/single_file_tests/closure.rs
new file mode 100644
index 0000000..604256e
--- /dev/null
+++ b/single_file_tests/closure.rs
@@ -0,0 +1,7 @@
+
+fn main() {
+    let add = | a: i32, b: i32 | -> i32 { a + b };
+
+    println!("{}", add(1, 10));
+    println!("{}", (|| 10 + 100)());
+}