1 files changed, 61 insertions, 0 deletions
diff --git a/tests/test-localcharset-w32utf8.c b/tests/test-localcharset-w32utf8.c
new file mode 100644
index 00000000..361c9e90
--- /dev/null
+++ b/tests/test-localcharset-w32utf8.c
@@ -0,0 +1,61 @@
+/* Test of localcharset() function
+   on native Windows in the UTF-8 environment.
+   Copyright (C) 2024-2025 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>, 2024.  */
+
+#include <config.h>
+
+#include "localcharset.h"
+
+#include <locale.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+int
+main (void)
+{
+#ifdef _UCRT
+  unsigned int active_codepage = GetACP ();
+  if (!(active_codepage == 65001))
+    {
+      fprintf (stderr,
+               "The active codepage is %u, not 65001 as expected.\n"
+               "(This is normal on Windows older than Windows 10.)\n",
+               active_codepage);
+      exit (1);
+    }
+
+  setlocale (LC_ALL, "");
+  const char *lc = locale_charset ();
+  if (!(strcmp (lc, "UTF-8") == 0))
+    {
+      fprintf (stderr,
+               "locale_charset () is \"%s\", not \"UTF-8\" as expected.\n",
+               lc);
+      exit (1);
+    }
+
+  return 0;
+#else
+  fputs ("Skipping test: not using the UCRT runtime\n", stderr);
+  return 77;
+#endif
+}