public void ReturnsAnEmptyWorkScheduleIfHtmlDocumentIsEmpty()
{
IWorkScheduleReader reader = new HtmlWorkScheduleReader(DocumentHelpers.EmptyDocument());
WorkSchedule workSchedule = reader.Read();
workSchedule.ShouldNotBeNull();
workSchedule.Employee.ShouldBeEmpty();
workSchedule.WorkShifts.ShouldBeEmpty();
}