public void Calculate_WhenBaseChargeIsNotACalculatedCharge_ShouldAddRateToReverseRatesCollection()
{
// Arrange
var baseCharges = new List <ChargeName> {
ChargeNames.Item
};
var orderItem = _orderItemBuilder
.WithVatRate(10)
.Build();
var order = _orderBuilder
.WithOrderItems(new List <OrderItem> {
orderItem
})
.Build();
var sut = new ReverseRateCalculator(ChargeNames.Vat, oi => oi.VatRate, baseCharges);
// Act
sut.Calculate(order);
// Assert
orderItem.ReverseRates.Should()
.ContainSingle(rr => rr.Rate == orderItem.VatRate && rr.ChargeName.Value == "VatOnItem" && rr.BaseChargeName.Value == ChargeNames.Vat);
}
public void Calculate_WhenBaseChargeIncludesACalculatedCharge_ShouldAddMultipleRatesToReverseRatesCollection()
{
// Arrange
var dutyRate = new Rate(5);
var baseCharges = new List <ChargeName> {
ChargeNames.Item, ChargeNames.Duty
};
var orderItem = _orderItemBuilder
.WithVatRate(10)
.Build();
orderItem.AddReverseRate(new ReverseRate("DutyOnItem", ChargeNames.Duty, dutyRate));
var order = _orderBuilder
.WithOrderItems(new List <OrderItem> {
orderItem
})
.Build();
var sut = new ReverseRateCalculator(ChargeNames.Vat, oi => oi.VatRate, baseCharges);
// Act
sut.Calculate(order);
// Assert
orderItem.ReverseRates.Should()
.HaveCount(3).And
.ContainSingle(rr => rr.Rate == orderItem.VatRate && rr.ChargeName.Value == "VatOnItem" && rr.BaseChargeName.Value == ChargeNames.Vat).And
.ContainSingle(rr => rr.Rate == dutyRate && rr.ChargeName.Value == "DutyOnItem" && rr.BaseChargeName.Value == ChargeNames.Duty).And
.ContainSingle(rr => rr.Rate == new Rate(0.5m) && rr.ChargeName.Value == "VatOnDutyOnItem" && rr.BaseChargeName.Value == ChargeNames.Vat);
}
public void Calculate_WhenBaseChargeAlreadyCalculated_ShouldCalculateForwardAndAddCorrectCharge()
{
// Arrange
var baseCharges = new List <ChargeName> {
ChargeNames.Duty
};
var orderItem = _orderItemBuilder
.WithVatRate(10)
.Build();
orderItem.AddCharge(new OrderCharge("DutyOnItem", new Price(CurrencyFakes.EUR, 100), ChargeNames.Duty));
var order = _orderBuilder
.WithOrderItems(new List <OrderItem> {
orderItem
})
.Build();
var sut = new ReverseRateCalculator(ChargeNames.Vat, oi => oi.VatRate, baseCharges);
// Act
sut.Calculate(order);
// Assert
orderItem.ReverseRates.Should().BeEmpty();
orderItem.Charges.Should().ContainSingle(c => c.ChargeName.Value == "VatOnDuty" && c.ChargeAmount.Value == 10);
}
