Hugh McMaster : reg/tests: Comprehensively check for elevated privileges before starting Windows 3.1 import tests.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 17023a8100a62852bbad342e5e7c705cafae9a1f
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=17023a8100a62852bbad342e5e7c705cafae9a1f

Author: Hugh McMaster <hugh.mcmaster at outlook.com>
Date:   Tue Mar  2 23:17:50 2021 +1100

reg/tests: Comprehensively check for elevated privileges before starting Windows 3.1 import tests.

The existing check fails to adequately determine the program's elevation
status on systems where the test key already exists. This can cause all
Windows 3.1 import tests to fail on systems with a standard user account.

Signed-off-by: Hugh McMaster <hugh.mcmaster at outlook.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 programs/reg/tests/import.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/programs/reg/tests/import.c b/programs/reg/tests/import.c
index f769e0020f5..58831625fa5 100644
--- a/programs/reg/tests/import.c
+++ b/programs/reg/tests/import.c
@@ -3468,25 +3468,34 @@ static void test_import_win31(void)
 {
     LONG err;
     HKEY hkey;
-    DWORD dispos, r;
+    DWORD r;
 
     /* Check if reg.exe is running with elevated privileges */
-    err = RegCreateKeyExA(HKEY_CLASSES_ROOT, KEY_BASE, 0, NULL, REG_OPTION_NON_VOLATILE,
-                          KEY_READ|KEY_SET_VALUE, NULL, &hkey, &dispos);
+    err = RegDeleteKeyA(HKEY_CLASSES_ROOT, KEY_BASE);
     if (err == ERROR_ACCESS_DENIED)
     {
         win_skip("reg.exe is not running with elevated privileges; "
                  "skipping Windows 3.1 import tests\n");
         return;
     }
-
-    if (dispos == REG_OPENED_EXISTING_KEY)
-        delete_value(hkey, NULL);
+    if (err == ERROR_FILE_NOT_FOUND)
+    {
+        if (RegCreateKeyExA(HKEY_CLASSES_ROOT, KEY_BASE, 0, NULL, REG_OPTION_NON_VOLATILE,
+                          KEY_READ, NULL, &hkey, NULL))
+        {
+            win_skip("reg.exe is not running with elevated privileges; "
+                     "skipping Windows 3.1 import tests\n");
+            return;
+        }
+        RegCloseKey(hkey);
+        RegDeleteKeyA(HKEY_CLASSES_ROOT, KEY_BASE);
+    }
 
     /* Test simple value */
     test_import_str("REGEDIT\r\n"
                     "HKEY_CLASSES_ROOT\\" KEY_BASE " = Value0\r\n", &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+    open_key(HKEY_CLASSES_ROOT, KEY_BASE, KEY_SET_VALUE, &hkey);
     verify_reg(hkey, "", REG_SZ, "Value0", 7, 0);
 
     /* Test proper handling of spaces and equals signs */