public void WithinPeriod() { Assert.True(testPeriod1.WithinPeriod(DateTime.Parse("2018-07-01"))); Assert.True(testPeriod1.WithinPeriod(DateTime.Parse("2018-12-31"))); Assert.False(testPeriod1.WithinPeriod(DateTime.Parse("2018-12-25"))); Assert.False(testPeriod1.WithinPeriod(DateTime.Parse("2018-06-30"))); }