public virtual void SetUp()
        {
            window = EditorWindow.GetWindowWithRect <TestGraphViewWindow>(k_WindowRect);

            if (!m_EnablePersistence)
            {
                GraphViewStaticBridge.DisableViewDataPersistence(window);
            }
            else
            {
                GraphViewStaticBridge.ClearPersistentViewData(window);
            }

            graphView = window.graphView as TestGraphView;
            helpers   = new TestEventHelpers(window);
        }