From db6c7387bc1df49deac41155a173e33017a75ed8 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <joshua@reverberate.org>
Date: Sat, 10 Jul 2010 18:11:24 -0700
Subject: Incremental progress towards getting upb_def to bootstrap.

---
 tests/test_string.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'tests')

diff --git a/tests/test_string.c b/tests/test_string.c
index 5e6e2a9..5869b70 100644
--- a/tests/test_string.c
+++ b/tests/test_string.c
@@ -66,4 +66,7 @@ int main() {
 
   upb_string_unref(str);
   upb_string_unref(str2);
+
+  // Unref of NULL is harmless.
+  upb_string_unref(NULL);
 }
-- 
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