public void Calculate_Order_TotalSum()
{
// Arrange.
Order order = new Order();
order.Add(new OrderItem {
Name = "Milk", Price = 10.0M, Quantity = 10
});
order.Add(new OrderItem {
Name = "Chocolate", Price = 4.5M, Quantity = 20
});
order.Add(new OrderItem {
Name = "Coffee", Price = 1M, Quantity = 345
});
decimal excepted = 0;
foreach (var orderItem in order.GetOrderItems())
{
excepted += orderItem.Price * orderItem.Quantity;
}
// Act.
decimal result = TotalSumCalculator.Calculate(order);
// Assert.
Assert.Equal(excepted, result);
}
/// <summary>
/// Entry point.
/// </summary>
static void Main(string[] args)
{
// Create order.
Order order = new Order();
// Order item.
OrderItem orderItem;
// User input.
string input;
// Mathes pattern user input.
bool isMathesPattern;
Console.WriteLine("Enter line by line the list of products that the customer ordered: (Input template: \"Milk,10.0,4\")\n" +
"If you need to complete, make an empty entry.\n");
while (true)
{
input = Console.ReadLine();
if (string.IsNullOrEmpty(input))
{
break;
}
// Check user input.
isMathesPattern = Checker.CheckLine(input);
if (isMathesPattern == false)
{
Console.WriteLine("Input does not match the pattern.");
continue;
}
// Create order item.
orderItem = OrderItemParser.Parse(input);
try
{
// Add order item to order.
order.Add(orderItem);
}
catch (OrderAddException ex)
{
Console.WriteLine(ex.Message);
}
}
// Total sum of order.
decimal totalSum = TotalSumCalculator.Calculate(order);
// Total sum with tax of order.
decimal totalSumWithTax = TaxCalculator.Calculate(totalSum, 3);
// Use a certain culture
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
Console.WriteLine($"Total: {totalSum:C}");
Console.WriteLine($"Total with tax: {totalSumWithTax:C}");
// Delay.
Console.ReadKey();
}