From 8ab3b8f067bf057d48fc0d0212c8e3120a380055 Mon Sep 17 00:00:00 2001
From: Patrick Pelissier <patrick.pelissier@gmail.com>
Date: Mon, 27 Mar 2017 13:52:02 +0200
Subject: [PATCH] Add a new case.

---
 tests/test-mstring.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/test-mstring.c b/tests/test-mstring.c
index 2cf713a7..a14b490a 100644
--- a/tests/test-mstring.c
+++ b/tests/test-mstring.c
@@ -135,6 +135,10 @@ int main(void)
   string_cat (s1, s2);
   assert (string_cmp_str (s1, "Hello") == 0);
 
+  string_set_str(s2, " World!");
+  string_cat (s1, s2);
+  assert (string_cmp_str (s1, "Hello World!") == 0);
+
   string_clear (s1);
   string_init (s1);