public void RangeValidateFormat__Less__DateTime() { //Arrange var request = new Mock <HttpRequestBase>(); var value = DateTime.Now.AddDays(10).ToString(); var single = DateTime.Now; var field = "日期"; var expected = "日期必須小於" + single.ToString("yyyy/MM/dd"); //Act RequestWrapper wrapper = new RequestWrapper(request.Object); wrapper.LessValidate(value, single, false, field, "{0}必須小於{1:yyyy/MM/dd}"); var result = wrapper.GetErrorMessage(ErrorOuputType.Text); //Assert Trace.WriteLine(result); Assert.AreEqual(expected, result); }