Fix qwidget test crash

CEikonEnv::Static()->AppUiFactory()->Cba() call always returns NULL
unless cba was defined via resources, which we are no longer doing.

Due to the buggy implementation of MEikAppUiFactory interface in
Symbian, the only way to get non-resources created cba is to use the
return value of CEikonEnv::Static()->AppUiFactory()->SwapButtonGroup()
method, so changed the test cases to do a dummy swap. Since the swap
just changes the value of a member variable and doesn't trigger
anything, it should not cause any interference for the tests.

Task-number: QTBUG-15915
Reviewed-by: Janne Koskinen
Reviewed-by: Sami Merila

1 files changed, 27 insertions, 5 deletions

diff --git a/tests/auto/qwidget/tst_qwidget.cpp b/tests/auto/qwidget/tst_qwidget.cpp
index 5521873e67..6069383ddf 100644
--- a/tests/auto/qwidget/tst_qwidget.cpp
+++ b/tests/auto/qwidget/tst_qwidget.cpp
@@ -10029,6 +10029,28 @@ void tst_QWidget::openModal_taskQTBUG_5804()
 }
 
 #ifdef Q_OS_SYMBIAN
+
+static CEikButtonGroupContainer* cba()
+{
+    CEikButtonGroupContainer *oldCba = NULL;
+
+    // Due to convoluted/buggy implementation of MEikAppUiFactory interface in Symbian,
+    // the only way to get the correct cba is to use SwapButtonGroup function.
+    // Calling SwapButtonGroup doesn't trigger anything, it only changes the value of iToolbar
+    // member variable, so this double switching should not cause any interference for test.
+    QT_TRAP_THROWING(
+        CEikButtonGroupContainer *dummyCba = CEikButtonGroupContainer::NewL(
+            CEikButtonGroupContainer::ECba, CEikButtonGroupContainer::EHorizontal, NULL, 0);
+
+        oldCba = CEikonEnv::Static()->AppUiFactory()->SwapButtonGroup(dummyCba);
+        CEikonEnv::Static()->AppUiFactory()->SwapButtonGroup(oldCba);
+
+        delete dummyCba;
+    )
+
+    return oldCba;
+}
+
 void tst_QWidget::cbaVisibility()
 {
     // Test case for task 261048
@@ -10061,7 +10083,7 @@ void tst_QWidget::cbaVisibility()
     // Verify window decorations i.e. status pane and CBA are visible.
     CEikStatusPane* statusPane = CEikonEnv::Static()->AppUiFactory()->StatusPane();
     QVERIFY(statusPane->IsVisible());
-    CEikButtonGroupContainer* buttonGroup = CEikonEnv::Static()->AppUiFactory()->Cba();
+    CEikButtonGroupContainer* buttonGroup = cba();
     QVERIFY(buttonGroup->IsVisible());
 }
 
@@ -10078,7 +10100,7 @@ void tst_QWidget::fullScreenWindowModeTransitions()
     const QRect fullScreenGeometry = qApp->desktop()->screenGeometry(&widget);
     const QRect maximumScreenGeometry = qApp->desktop()->availableGeometry(&widget);
     CEikStatusPane *statusPane = CEikonEnv::Static()->AppUiFactory()->StatusPane();
-    CEikButtonGroupContainer *buttonGroup = CEikonEnv::Static()->AppUiFactory()->Cba();
+    CEikButtonGroupContainer *buttonGroup = cba();
 
     //Enter
     widget.showNormal();
@@ -10132,7 +10154,7 @@ void tst_QWidget::maximizedWindowModeTransitions()
     const QRect fullScreenGeometry = qApp->desktop()->screenGeometry(&widget);
     const QRect maximumScreenGeometry = qApp->desktop()->availableGeometry(&widget);
     CEikStatusPane *statusPane = CEikonEnv::Static()->AppUiFactory()->StatusPane();
-    CEikButtonGroupContainer *buttonGroup = CEikonEnv::Static()->AppUiFactory()->Cba();
+    CEikButtonGroupContainer *buttonGroup = cba();
 
     //Enter
     widget.showNormal();
@@ -10188,7 +10210,7 @@ void tst_QWidget::minimizedWindowModeTransitions()
     const QRect fullScreenGeometry = qApp->desktop()->screenGeometry(&widget);
     const QRect maximumScreenGeometry = qApp->desktop()->availableGeometry(&widget);
     CEikStatusPane *statusPane = CEikonEnv::Static()->AppUiFactory()->StatusPane();
-    CEikButtonGroupContainer *buttonGroup = CEikonEnv::Static()->AppUiFactory()->Cba();
+    CEikButtonGroupContainer *buttonGroup = cba();
 
     //Enter
     widget.showNormal();
@@ -10244,7 +10266,7 @@ void tst_QWidget::normalWindowModeTransitions()
     const QRect fullScreenGeometry = qApp->desktop()->screenGeometry(&widget);
     const QRect maximumScreenGeometry = qApp->desktop()->availableGeometry(&widget);
     CEikStatusPane *statusPane = CEikonEnv::Static()->AppUiFactory()->StatusPane();
-    CEikButtonGroupContainer *buttonGroup = CEikonEnv::Static()->AppUiFactory()->Cba();
+    CEikButtonGroupContainer *buttonGroup = cba();
 
     //Enter
     widget.showMaximized();