--- a/src/testlib/qtestcase.cpp	Tue Feb 02 00:43:10 2010 +0200
+++ b/src/testlib/qtestcase.cpp	Fri Apr 16 15:50:13 2010 +0300
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -1113,6 +1113,14 @@
 #endif
         } else if (strcmp(argv[i], "-qws") == 0) {
             // do nothing
+        } else if (strcmp(argv[i], "-graphicssystem") == 0) {
+            // do nothing
+            if (i + 1 >= argc) {
+                printf("-graphicssystem needs an extra parameter specifying the graphics system\n");
+                exit(1);
+            } else {
+                ++i;
+            }
         } else if (argv[i][0] == '-') {
             printf("Unknown option: '%s'\n\n%s", argv[i], testOptions);
             exit(1);
@@ -1298,11 +1306,23 @@
             const int dataCount = table.dataCount();
             QTestResult::setSkipCurrentTest(false);
 
+            // Data tag requested but none available?
+            if (data && !dataCount) {
+                // Let empty data tag through.
+                if (!*data)
+                    data = 0;
+                else {
+                    printf("Unknown testdata for function %s: '%s'\n", slotName, data);
+                    printf("Function has no testdata.\n");
+                    return false;
+                }
+            }
+
             /* For each entry in the data table, do: */
             do {
                 if (!data || !qstrcmp(data, table.testData(curDataIndex)->dataTag())) {
                     foundFunction = true;
-                    QTestDataSetter s(table.isEmpty() ? static_cast<QTestData *>(0)
+                    QTestDataSetter s(curDataIndex >= dataCount ? static_cast<QTestData *>(0)
                                                       : table.testData(curDataIndex));
 
                     qInvokeTestMethodDataEntry(slot);