public void ChooseADate_ShouldSelectDateFromCalendar(string date) { // Choose a date in format: d MMMM yyyy string changedDate = DatePicker.ChooseADate(date); var actual = DateTime.Parse(changedDate, CultureInfo.GetCultureInfo("en-US")); Assert.AreEqual(date, actual.ToString("d MMMM yyyy"), "Unable to select date"); }