public async Task NoWeekendsOrHoliday_ReturnTotalCost()
{
holidayServiceMock.Setup(m => m.GetHolidaysAsync(It.IsAny <CancellationToken>()))
.ReturnsAsync(new List <IHoliday>());
var monday = DateTimeHelpers.StartOfWeek(DateTime.Now, DayOfWeek.Monday);
var request = new GetTotalCostArgs()
{
ApartmentId = apartment.Id,
StartDate = monday,
NumberOfNights = 2
};
double expectedCost = apartment.PricePerNight * request.NumberOfNights;
double totalCost = await sut.CalculateTotalCostAsync(request, CancellationToken.None).ConfigureAwait(false);
Assert.Equal(expectedCost, totalCost, precision: 2);
}