1 files changed, 84 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/file_io/GetTempFileNameW/test2/GetTempFileNameW.cpp b/src/pal/tests/palsuite/file_io/GetTempFileNameW/test2/GetTempFileNameW.cpp
new file mode 100644
index 0000000000..2c8b19e081
--- /dev/null
+++ b/src/pal/tests/palsuite/file_io/GetTempFileNameW/test2/GetTempFileNameW.cpp
@@ -0,0 +1,84 @@
+// 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:  GetTempFileNameW.c (test 2)
+**
+** Purpose: Tests the PAL implementation of the GetTempFileNameW function.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+
+
+int __cdecl main(int argc, char *argv[])
+{
+    UINT uiError = 0;
+    DWORD dwError = 0;
+    const UINT uUnique = 0;
+    WCHAR* wPrefix = NULL;
+    WCHAR* wPath = NULL;
+    WCHAR wReturnedName[256];
+    DWORD i;
+
+    if (0 != PAL_Initialize(argc,argv))
+    {
+        return FAIL;
+    }
+
+
+    // test the number of temp files that can be created
+    wPrefix = convert("cfr");
+    wPath = convert(".");
+    for (i = 0; i < 0x10005; i++)
+    {
+        uiError = GetTempFileNameW(wPath, wPrefix, uUnique, wReturnedName);
+        if (uiError == 0)
+        {
+            dwError = GetLastError();
+            if (dwError == ERROR_FILE_EXISTS)
+            {
+                // file already existes so break out of the loop
+                i--; // decrement the count because it wasn't successful
+                break;
+            }
+            else
+            {
+                // it was something other than the file already existing?
+                free (wPath);
+                free (wPrefix);
+                Fail("GetTempFileNameW: ERROR -> Call failed with a valid "
+                    "path and prefix with the error code: %ld\n", GetLastError());
+            }
+        }
+        else
+        {
+            // verify temp file was created
+            if (GetFileAttributesW(wReturnedName) == -1)
+            {
+                free (wPath);
+                free (wPrefix);
+                Fail("GetTempFileNameW: ERROR -> GetFileAttributes failed "
+                    "on the returned temp file with error code: %ld.\n", 
+                    GetLastError());
+            }
+        }
+    }
+
+    free (wPath);
+    free (wPrefix);
+
+    // did it create more than 0xffff files
+    if (i > 0xffff)
+    {
+        Fail("GetTempFileNameW: ERROR -> Was able to create more than 0xffff"
+            " temp files.\n");
+    }
+
+    PAL_Terminate();
+    return PASS;
+}