1 files changed, 100 insertions, 0 deletions
diff --git a/tests/test-vasnwprintf-posix3.c b/tests/test-vasnwprintf-posix3.c
new file mode 100644
index 0000000000..0e6ce29914
--- /dev/null
+++ b/tests/test-vasnwprintf-posix3.c
@@ -0,0 +1,100 @@
+/* Test of POSIX compatible vasnwprintf() and asnwprintf() functions.
+   Copyright (C) 2010-2023 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 3 of the License, 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, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2010.  */
+
+#include <config.h>
+
+#include "vasnwprintf.h"
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+
+#include "macros.h"
+
+/* glibc >= 2.2 supports the 'I' flag, and in glibc >= 2.2.3 the fa_IR
+   locale defines the 'outdigits' to be U+06F0..U+06F9.
+   So we test for glibc >= 2.3.  */
+#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined __UCLIBC__
+
+static void
+test_function (wchar_t * (*my_asnwprintf) (wchar_t *, size_t *, const wchar_t *, ...))
+{
+  /* Test that the 'I' flag is supported.  */
+  {
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%Id %d", 1234567, 99);
+    static const wchar_t expected[] = /* "۱۲۳۴۵۶۷ 99" */
+      {
+        0x06F1, 0x06F2, 0x06F3, 0x06F4, 0x06F5, 0x06F6, 0x06F7, L' ',
+        L'9', L'9', L'\0'
+      };
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, expected) == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+}
+
+static wchar_t *
+my_asnwprintf (wchar_t *resultbuf, size_t *lengthp, const wchar_t *format, ...)
+{
+  va_list args;
+  wchar_t *ret;
+
+  va_start (args, format);
+  ret = vasnwprintf (resultbuf, lengthp, format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_vasnwprintf ()
+{
+  test_function (my_asnwprintf);
+}
+
+static void
+test_asnwprintf ()
+{
+  test_function (asnwprintf);
+}
+
+#endif
+
+int
+main (int argc, char *argv[])
+{
+#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined __UCLIBC__
+  /* Select a locale with Arabic 'outdigits'.  */
+  if (setlocale (LC_ALL, "fa_IR.UTF-8") == NULL)
+    {
+      fprintf (stderr, "Skipping test: no Iranian locale is installed\n");
+      return 77;
+    }
+
+  test_vasnwprintf ();
+  test_asnwprintf ();
+
+  return 0;
+#else
+  fprintf (stderr, "Skipping test: not a glibc >= 2.3 system\n");
+  return 77;
+#endif
+}