public async Task Able_to_generate_invoice()
{
var product = ProductMockBuilder.Build();
var productRepo = Substitute.For <IProductRepository>();
productRepo.Get(Arg.Any <Guid>()).Returns(product);
var supplier = SupplierMockBuilder.Build();
var supplierRepo = Substitute.For <ISupplierRepository>();
supplierRepo.Get(Arg.Any <Guid>()).Returns(supplier);
var customer = CustomerMockBuilder.Build();
var customerRepo = Substitute.For <ICustomerRepository>();
customerRepo.Get(Arg.Any <Guid>()).Returns(customer);
var sut = new InvoiceGenerator(productRepo, supplierRepo, customerRepo);
var actual = await sut.Generate(OrderMockBuilder.Build());
actual.Customer.Should().Be(customer);
actual.Supplier.Should().Be(supplier);
actual.Product.Should().Be(product);
actual.Amount.Should().Be(new InvoiceAmount(30, 0.19));
}
public override async Task Able_to_get_existing_entity()
{
var product = ProductMockBuilder.Build();
await _sut.Save(product);
var actual = await _sut.Get(product.Id);
actual.Should().Be(product);
}