From 82df1b08c42d40c79b0dbd1634e18786cad860da Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Wed, 14 Jan 2026 23:10:40 +0900
Subject: feat: support empty arguments of ## operator

---
 tests/macro_operators.sh | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'tests/macro_operators.sh')

diff --git a/tests/macro_operators.sh b/tests/macro_operators.sh
index a6d0445..57e8564 100644
--- a/tests/macro_operators.sh
+++ b/tests/macro_operators.sh
@@ -107,3 +107,18 @@ int main() {
     ASSERT_EQ(0, strcmp("FOO", BAZ));
 }
 EOF
+
+test_exit_code 0 <<'EOF'
+#include <helpers.h>
+
+#define CONCAT3(x, y, z) x##y##z
+#define FOO CONCAT3(, 2, 3)
+#define BAR CONCAT3(1, , 3)
+#define BAZ CONCAT3(1, 2, )
+
+int main() {
+    ASSERT_EQ(23, FOO);
+    ASSERT_EQ(13, BAR);
+    ASSERT_EQ(12, BAZ);
+}
+EOF
-- 
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