Box and tuple patterns
diff --git a/tests/cases/function.rs b/tests/cases/function.rs
index 30f39ca..7dcb902 100644
--- a/tests/cases/function.rs
+++ b/tests/cases/function.rs
@@ -7,6 +7,10 @@
         |a, b| a + b,
         |a: u8, b: u8| a + b,
         |a, b| -> u8 { a + b },
+        |(a, b): (u8, u8)| a + b,
+        |(.., b): (u8, u8)| a + b,
+        |(a, ..): (u8, u8)| a + b,
+        |(a, .., b): (u8, u8)| a + b,
         move |a, b| a + b,
     )
 }