Tests for module 'mbscasestr'.

[gnulib.git] / tests / test-mbscasestr4.c

diff --git a/tests/test-mbscasestr4.c b/tests/test-mbscasestr4.c
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+/* Test of case-insensitive searching in a string.
+   Copyright (C) 2007 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+
+#include <locale.h>
+#include <stdlib.h>
+
+#define ASSERT(expr) if (!(expr)) abort ();
+
+int
+main ()
+{
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  {
+    const char input[] = "GOLD NEEDLE BEATS TIN NEEDLE";
+    ASSERT (mbscasestr (input, "Needle") == input + 5);
+  }
+
+  /* The following tests show how mbscasestr() is different from
+     strcasestr().  */
+
+  {
+    const char input[] = "s\303\266zc\303\274k"; /* sözcük */
+    ASSERT (mbscasestr (input, "\303\266z") == input + 1);
+    ASSERT (mbscasestr (input, "\303\266c") == NULL);
+  }
+
+  /* This test shows how a string of larger size can be found in a string of
+     smaller size.  */
+  {
+    const char input[] = "*Tbilisi imini*";
+    ASSERT (mbscasestr (input, "TB\304\260L\304\260S\304\260 \304\260m\304\260n\304\260") == input + 1); /* TBİLİSİ İmİnİ */
+  }
+
+  return 0;
+}