1 files changed, 59 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/locale_info/GetSystemDefaultLangID/test1/test1.cpp b/src/pal/tests/palsuite/locale_info/GetSystemDefaultLangID/test1/test1.cpp
new file mode 100644
index 0000000000..1bc5120815
--- /dev/null
+++ b/src/pal/tests/palsuite/locale_info/GetSystemDefaultLangID/test1/test1.cpp
@@ -0,0 +1,59 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source: test1.c
+**
+** Purpose: Checks that GetSystemDefaultLangID can be used to make a valid
+**          locale, and that it is consistent with LOCALE_USER_DEFAULT.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+int __cdecl main(int argc, char *argv[])
+{    
+
+    LCID lcid;
+    LANGID LangID;
+
+    if (PAL_Initialize(argc, argv))
+    {
+        return FAIL;
+    }
+
+    LangID = GetSystemDefaultLangID();
+    if (LangID == 0)
+    {
+        Fail("GetSystemDefaultLangID failed!\n");
+    }
+
+    /* Try using the langid (with default sort) as a locale */
+    if (!SetThreadLocale(MAKELCID(LangID, SORT_DEFAULT)))
+    {
+        Fail("Unable to use GetSystemDefaultLangID as a locale!\n");
+    }
+    lcid = GetThreadLocale();
+    if (!IsValidLocale(lcid, LCID_INSTALLED))
+    {
+        Fail("Unable to use GetSystemDefaultLangID as a locale!\n");
+    }
+
+    /* Make sure results consistent with using LOCALE_USER_DEFAULT */
+    if (!SetThreadLocale(LOCALE_USER_DEFAULT))
+    {
+        Fail("Unexpected error testing GetSystemDefaultLangID!\n");
+    }
+    if (GetThreadLocale() != lcid)
+    {
+        Fail("Results from GetSystemDefaultLangID inconsistent with "
+            "LOCALE_USER_DEFAULT!\n");
+    }
+
+    PAL_Terminate();
+
+    return PASS;
+}