From e866150369bfbdf594612b53262f0ad7aa5d3524 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Sat, 28 Feb 2015 10:31:47 +0000
Subject: [PATCH] Add utf lc test case and fix the bug.

---
 src/libutil/util.c    |  1 +
 test/lua/unit/utf.lua | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 test/lua/unit/utf.lua

diff --git a/src/libutil/util.c b/src/libutil/util.c
index 5a42e4f8e..b2435dc8d 100644
--- a/src/libutil/util.c
+++ b/src/libutil/util.c
@@ -692,6 +692,7 @@ rspamd_str_lc_utf8 (gchar *str, guint size)
 		s = p;
 		d += r;
 	}
+	*d = '\0';
 }
 
 #ifndef HAVE_SETPROCTITLE
diff --git a/test/lua/unit/utf.lua b/test/lua/unit/utf.lua
new file mode 100644
index 000000000..2549c501c
--- /dev/null
+++ b/test/lua/unit/utf.lua
@@ -0,0 +1,23 @@
+-- Test utf routines
+
+context("UTF8 check functions", function()
+  local ffi = require("ffi")
+  ffi.cdef[[
+    void rspamd_str_lc_utf8 (char *str, unsigned int size);
+  ]]
+
+  test("UTF lowercase", function()
+    local cases = {
+      {"АбЫрвАлг", "абырвалг"},
+      {"АAБBвc", "аaбbвc"}
+    }
+    
+    for _,c in ipairs(cases) do
+      local buf = ffi.new("char[?]", #c[1])
+      ffi.copy(buf, c[1])
+      ffi.C.rspamd_str_lc_utf8(buf, #c[1])
+      local s = ffi.string(buf)
+      assert_equal(s, c[2])
+    end
+  end)
+end)
\ No newline at end of file
-- 
2.39.5