public static void IsView(ActionResult result, string viewName, string masterName, RouteValueDictionary expectedViewData)
{
ViewResult viewResult = result.AssertCast <ViewResult>();
StringsEqualOrBothNullOrEmpty(viewName, viewResult.ViewName);
StringsEqualOrBothNullOrEmpty(viewName, viewResult.ViewName);
DictionaryAssert.ContainsEntries(expectedViewData, viewResult.ViewData);
}