public void HelperResizableTest() { var resizablePage = new ResizablePage(this.driver); Actions builder = new Actions(this.driver); resizablePage.Navigate(); resizablePage.HelperResizableButton.Click(); int width = resizablePage.ResizeWindow.Size.Width; int height = resizablePage.ResizeWindow.Size.Height; builder.DragAndDropToOffset(resizablePage.ResizableButon1, 100, 100).Perform(); resizablePage.AssertHelperResizableWindowBiggerThan(width + 90, height + 90); }