using Shouldly; using Xunit; namespace System { public class DayOfWeekExtensions_Tests { [Fact] public void Weekend_Weekday_Test() { DayOfWeek.Monday.IsWeekday().ShouldBe(true); DayOfWeek.Monday.IsWeekend().ShouldBe(false); DayOfWeek.Saturday.IsWeekend().ShouldBe(true); DayOfWeek.Saturday.IsWeekday().ShouldBe(false); var datetime1 = new DateTime(2014, 10, 5, 16, 37, 25); //Sunday var datetime2 = new DateTime(2014, 10, 7, 16, 37, 25); //Tuesday datetime1.DayOfWeek.IsWeekend().ShouldBe(true); datetime2.DayOfWeek.IsWeekend().ShouldBe(false); datetime1.DayOfWeek.IsWeekday().ShouldBe(false); datetime2.DayOfWeek.IsWeekday().ShouldBe(true); } } }