public async void VatRateInvalidValidation(decimal vatRate)
{
// Arrange
var serviceProvider = ServiceProvider();
var purchaseProvider = new PurchaseProvider(null, serviceProvider.GetService <IGrossCalculator>()
, serviceProvider.GetService <IVatCalculator>(), serviceProvider.GetService <INetCalculator>());
// Act
var purchase = await purchaseProvider.GetPurchaseVatAsync(
new Purchase { GrossAmount = 120, NetAmount = null, VatAmount = null, VatRate = vatRate });
// Assert
Assert.False(purchase.IsSuccess);
Assert.Null(purchase.Purchase);
Assert.NotNull(purchase.ErrorMessage);
}
public async void CalculateAmountFromGross(decimal vatRate, decimal grossAmount, decimal netAmount, decimal vatAmount)
{
// Arrange
var serviceProvider = ServiceProvider();
var purchaseProvider = new PurchaseProvider(null, serviceProvider.GetService <IGrossCalculator>()
, serviceProvider.GetService <IVatCalculator>(), serviceProvider.GetService <INetCalculator>());
// Act
var purchase = await purchaseProvider.GetPurchaseVatAsync(
new Purchase { GrossAmount = grossAmount, NetAmount = null, VatAmount = null, VatRate = vatRate });
// Assert
Assert.True(purchase.IsSuccess);
Assert.NotNull(purchase.Purchase);
Assert.Null(purchase.ErrorMessage);
Assert.Equal(purchase.Purchase.NetAmount, netAmount);
Assert.Equal(purchase.Purchase.VatAmount, vatAmount);
}
public async void CalculateAmountFromVat(decimal vatRate, decimal grossAmount, decimal netAmount, decimal vatAmount)
{
/*
* Amount are correct according to the https://www.calkoo.com/en/vat-calculator, however there could be a rounding problem
* Further clarification should needed to see this data is correct or not
*/
// Arrange
var serviceProvider = ServiceProvider();
var purchaseProvider = new PurchaseProvider(null, serviceProvider.GetService <IGrossCalculator>()
, serviceProvider.GetService <IVatCalculator>(), serviceProvider.GetService <INetCalculator>());
// Act
var purchase = await purchaseProvider.GetPurchaseVatAsync(
new Purchase { GrossAmount = null, NetAmount = null, VatAmount = vatAmount, VatRate = vatRate });
// Assert
Assert.True(purchase.IsSuccess);
Assert.NotNull(purchase.Purchase);
Assert.Null(purchase.ErrorMessage);
Assert.Equal(purchase.Purchase.GrossAmount, grossAmount);
Assert.Equal(purchase.Purchase.NetAmount, netAmount);
}