public void SecondExample()
{
var receiptDetails = SalesTaxCalculator.Process(
new Item("Imported box of chocolates", 10m, Category.Food, true),
new Item("Imported bottle of perfume", 47.50m, true));
var receiptItems = receiptDetails.ReceiptItems.ToList();
Assert.That(receiptItems[0].PriceIncludingSalesTax, Is.EqualTo(11.00m));
Assert.That(receiptItems[1].PriceIncludingSalesTax, Is.EqualTo(59.38m));
Assert.That(receiptDetails.SalesTax, Is.EqualTo(12.88m));
Assert.That(receiptDetails.Total, Is.EqualTo(70.38m));
}
public void FirstExample()
{
var receiptDetails = SalesTaxCalculator.Process(
new Item("Magazine", 10.49m, Category.Magazines),
new Item("Shirt", 34.99m),
new Item("Package of milk", 0.85m, Category.Food));
var receiptItems = receiptDetails.ReceiptItems.ToList();
Assert.That(receiptItems[0].PriceIncludingSalesTax, Is.EqualTo(10.49m));
Assert.That(receiptItems[1].PriceIncludingSalesTax, Is.EqualTo(40.24m));
Assert.That(receiptItems[2].PriceIncludingSalesTax, Is.EqualTo(0.85m));
Assert.That(receiptDetails.SalesTax, Is.EqualTo(5.25m));
Assert.That(receiptDetails.Total, Is.EqualTo(51.58m));
}
public void ThirdExample()
{
var receiptDetails = SalesTaxCalculator.Process(
new Item("Imported bottle of perfume", 27.99m, true),
new Item("Bottle of perfume", 18.99m),
new Item("USB drive", 9.75m, Category.Electronics),
new Item("Box of imported chocolates", 11.25m, Category.Food, true));
var receiptItems = receiptDetails.ReceiptItems.ToList();
Assert.That(receiptItems[0].PriceIncludingSalesTax, Is.EqualTo(34.99m));
Assert.That(receiptItems[1].PriceIncludingSalesTax, Is.EqualTo(21.84m));
Assert.That(receiptItems[2].PriceIncludingSalesTax, Is.EqualTo(9.75m));
Assert.That(receiptItems[3].PriceIncludingSalesTax, Is.EqualTo(12.38m));
Assert.That(receiptDetails.SalesTax, Is.EqualTo(10.97m));
Assert.That(receiptDetails.Total, Is.EqualTo(78.95m));
}
public void NegativePriceThrowsError()
{
Exception ex = Assert.Throws <Exception>(delegate { SalesTaxCalculator.Process(new Item("Magazine", -10.49m, Category.Magazines)); });
}