public void GivenTwoSprintsThatHaveStartDateTheyShouldCollide() { Duration duration = Duration.FromDays(15); Sprint sprint1 = new Sprint(duration) { Id = 1, StartDate = new DateTime(2019, 12, 1) }; Sprint sprint2 = new Sprint(duration) { Id = 1, StartDate = new DateTime(2019, 12, 1) }; sprint1.Overlaps(sprint2).Should().BeTrue(); }