advapi32: Test for OpenProcessToken with MAXIMUM_ALLOWED access.

dlls/advapi32/tests/security.c

@@ -786,6 +786,18 @@ static void test_token_attr(void)
     DWORD i, GLE;
     LPSTR SidString;
 
+    /* cygwin-like use case */
+    ret = OpenProcessToken(GetCurrentProcess(), MAXIMUM_ALLOWED, &Token);
+    ok(ret, "OpenProcessToken failed with error %d\n", GetLastError());
+    if (ret)
+    {
+        BYTE buf[1024];
+        DWORD bufsize = sizeof(buf);
+        ret = GetTokenInformation(Token, TokenUser,(void*)buf, bufsize, &bufsize);
+        todo_wine ok(ret, "GetTokenInformation failed with error %d\n", GetLastError());
+        CloseHandle(Token);
+    }
+
     if(!pConvertSidToStringSidA)
         return;