Create 'delimited!' macro for tests
diff --git a/tests/test_grouping.rs b/tests/test_grouping.rs
index b09225e..7d031d2 100644
--- a/tests/test_grouping.rs
+++ b/tests/test_grouping.rs
@@ -9,6 +9,9 @@
 extern crate proc_macro2;
 use proc_macro2::*;
 
+#[macro_use]
+mod macros;
+
 mod common;
 
 fn tt(k: TokenNode) -> TokenTree {