Closure parsing
diff --git a/tests/cases/function.rs b/tests/cases/function.rs
index 340804a..39775a6 100644
--- a/tests/cases/function.rs
+++ b/tests/cases/function.rs
@@ -1,3 +1,12 @@
 fn f() {
-    return 1
+    (
+        || (),
+        |_| (),
+        || -> () { () },
+        |a| a,
+        |a, b| a + b,
+        |a: u8, b: u8| a + b,
+        |a, b| -> u8 { a + b },
+        move |a, b| a + b,
+    )
 }