public void ChargeRate_Create_Success()
{
var chargeRate = new ChargeRate(10.04m, 5m);
Assert.AreEqual(10.04m, chargeRate.TaxRate);
Assert.AreEqual(5m, chargeRate.ImportDutyRate);
}
public void Scenario_Two_Success()
{
// Arrange
var listOfProducts = new List <IProduct>
{
new ImportedProduct("box of chocolates", 10.00m, 1, ProductType.Food),
new ImportedProduct("bottle of perfume", 47.50m, 1, ProductType.Perfume)
};
var chargeRate = new ChargeRate(10, 5);
// Act
listOfProducts = TaxCalculationLogic.CalculateTax(listOfProducts, chargeRate).ToList();
// Assert
Assert.AreEqual(10.50m, listOfProducts[0].TotalPriceIncTax);
Assert.AreEqual(54.63m, listOfProducts[1].TotalPriceIncTax);
Assert.AreEqual(7.63m, listOfProducts.Sum(product => product.ProductTax));
Assert.AreEqual(65.13m, listOfProducts.Sum(product => product.TotalPriceIncTax));
}
public void Receipt_GetSubtotalIncTax_Success()
{
// Arrange
var listOfProduct = new List <IProduct>
{
new Product("vitamin C 30 Tablets", 13.82m, 1, ProductType.MedicalProduct),
new Product("D&G Blue", 42.99m, 1, ProductType.Perfume),
new ImportedProduct("Box of apples", 3.56m, 3, ProductType.Food),
new ImportedProduct("3D Puzzle", 10m, 2, ProductType.None)
};
var chargeRate = new ChargeRate(10m, 5m);
// Act
listOfProduct = TaxCalculationLogic.CalculateTax(listOfProduct, chargeRate).ToList();
var receipt = new Receipt(listOfProduct);
var subtotalIncTax = receipt.SubtotalIncTax;
// Assert
Assert.AreEqual(95.33m, subtotalIncTax);
}
public void Scenario_One_Success()
{
// Arrange
var listOfProducts = new List <IProduct>
{
new Product("book", 12.49m, 1, ProductType.Book),
new Product("music CD", 14.99m, 1, ProductType.None),
new Product("chocolate bar", 0.85m, 1, ProductType.Food)
};
var chargeRate = new ChargeRate(10, 5);
// Act
listOfProducts = TaxCalculationLogic.CalculateTax(listOfProducts, chargeRate).ToList();
// Assert
Assert.AreEqual(12.49m, listOfProducts[0].TotalPriceIncTax);
Assert.AreEqual(16.49m, listOfProducts[1].TotalPriceIncTax);
Assert.AreEqual(0.85m, listOfProducts[2].TotalPriceIncTax);
Assert.AreEqual(1.50m, listOfProducts.Sum(product => product.ProductTax));
Assert.AreEqual(29.83m, listOfProducts.Sum(product => product.TotalPriceIncTax));
}
private static ChargeRate CreatechargeRate()
{
bool chargeRateCreated = false;
ChargeRate chargeRate = null;
while (chargeRateCreated == false)
{
try
{
Console.Write("Enter your basic tax rate (%): ");
int basicchargeRate = int.Parse(Console.ReadLine());
Console.Write("Please enter your imported tax rate (%): ");
int importedchargeRate = int.Parse(Console.ReadLine());
chargeRate = new ChargeRate(basicchargeRate, importedchargeRate);
chargeRateCreated = true;
}
catch (ArgumentOutOfRangeException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException)
{
Console.WriteLine("--- WARNING --- Invalid value format for the tax rate!\n");
}
catch (Exception)
{
Console.WriteLine("--- WARNING --- Something else went wrong!!!\n");
}
}
return(chargeRate);
}
public void Scenario_Three_Success()
{
// Arrange
var listOfProducts = new List <IProduct>
{
new ImportedProduct("bottle of perfume", 27.99m, 1, ProductType.Perfume),
new Product("bottle of perfume", 18.99m, 1, ProductType.Perfume),
new Product("packet of headache pills", 9.75m, 1, ProductType.MedicalProduct),
new ImportedProduct("box of chocolates", 11.25m, 1, ProductType.Food)
};
var chargeRate = new ChargeRate(10, 5);
// Act
TaxCalculationLogic.CalculateTax(listOfProducts, chargeRate);
// Assert
Assert.AreEqual(32.19m, listOfProducts[0].TotalPriceIncTax);
Assert.AreEqual(20.89m, listOfProducts[1].TotalPriceIncTax);
Assert.AreEqual(9.75m, listOfProducts[2].TotalPriceIncTax);
Assert.AreEqual(11.81m, listOfProducts[3].TotalPriceIncTax);
Assert.AreEqual(6.66m, listOfProducts.Sum(product => product.ProductTax));
Assert.AreEqual(74.64m, listOfProducts.Sum(product => product.TotalPriceIncTax));
}
public void TaxCalculation_RecalculateForAllProduct_Realculated()
{
// Arrange
var listOfProduct = new List <IProduct>
{
new Product("vitamin C 30 Tablets", 13.82m, 1, ProductType.MedicalProduct),
new Product("D&G Blue", 42.99m, 1, ProductType.Perfume),
new ImportedProduct("Box of apples", 3.56m, 3, ProductType.Food),
new ImportedProduct("3D Puzzle", 10m, 2, ProductType.None)
};
var chargeRate = new ChargeRate(12.06m, 5.2m);
// Act
listOfProduct[1].ProductTax = 3.5m;
listOfProduct[2].ProductTax = 5.5m;
var listOfProductWithTax = TaxCalculationLogic.CalculateTax(listOfProduct, chargeRate, recalculateAll: true);
// Assert
Assert.AreEqual(4, listOfProductWithTax.Count);
Assert.AreEqual(0, listOfProductWithTax[0].ProductTax);
Assert.AreEqual(5.18m, listOfProductWithTax[1].ProductTax);
Assert.AreEqual(0.19m, listOfProductWithTax[2].ProductTax);
Assert.AreEqual(1.73m, listOfProductWithTax[3].ProductTax);
}
static void Main(string[] args)
{
//Create tax rate based on the user input
ChargeRate chargeRate = CreatechargeRate();
if (chargeRate != null)
{
try
{
IList <IProduct> listOfProducts = AddProductsBasedOnUserInput(chargeRate);
PrintReceipt.PrintReceiptWithCalculatedTax(listOfProducts, chargeRate);
}
catch (Exception)
{
Console.WriteLine("--- WARNING --- Something went wrong!!!\n");
//TODO: Error handling for: product line input.
}
}
Console.ReadKey();
}
private static List <IProduct> AddProductsBasedOnUserInput(ChargeRate chargeRate)
{
List <IProduct> listOfProducts = new List <IProduct>();
bool importedProduct = false;
decimal productPrice = 0;
int productQuantity = 0;
List <string> productDescription = new List <string>();
bool productsAdded = false;
while (!productsAdded)
{
Console.Write("Enter product line or (-1 to print): ");
string productLine = Console.ReadLine();
if (productLine.Equals(TriggerReceiptCreation))
{
productsAdded = true;
}
else
{
if (string.IsNullOrEmpty(productLine))
{
throw new ArgumentNullException();
}
else
{
string[] words = productLine.Split(' ');
//set the quantity
if (int.TryParse(words[0], out productQuantity))
{
//if quantity set, loop from second word
for (int i = 1; i < words.Length; i++)
{
//determine if the product line includes "imported"
if (words[i].Equals(ImportedProductIdentifier))
{
importedProduct = true;
}
else
{
//identify product price
if (words[i].Equals(PriceIdentifier))
{
decimal.TryParse(words[i + 1], out productPrice);
break;
}
else
{
//add description
productDescription.Add(words[i]);
}
}
}
}
else
{
//if quantity not specified set as default to 1
productQuantity = 1;
for (int i = 0; i < words.Length; i++)
{
//determine if the product line includes "imported"
if (words[i].Equals(ImportedProductIdentifier))
{
importedProduct = true;
}
else
{
//determine if the product line string include "imported"
if (words[i].Equals(PriceIdentifier))
{
decimal.TryParse(words[i + 1], out productPrice);
break;
}
else
{
//add description
productDescription.Add(words[i]);
}
}
}
}
}
//ask user for the product type
int productType = AskUserToSetProductType();
if (productType >= 0)
{
IProduct product;
if (importedProduct)
{
product = new ImportedProduct(string.Join(" ", productDescription), productPrice, productQuantity, (ProductType)productType);
}
else
{
product = new Product(string.Join(" ", productDescription), productPrice, productQuantity, (ProductType)productType);
}
listOfProducts.Add(product);
//reset product fiels
importedProduct = false;
productPrice = 0;
productQuantity = 0;
productDescription.Clear();
}
}
}
return(listOfProducts);
}
public void ChargeRate_SetNegativeImportDutyRate_Fail()
{
var chargeRate = new ChargeRate(14.2m, -34.7m);
}
public void ChargeRate_SetImportDutyRateToZero_Fail()
{
var chargeRate = new ChargeRate(12m, 0);
}
public void ChargeRate_SetNegativeTaxRate_Fail()
{
var chargeRate = new ChargeRate(-3.2m, 5m);
}
public void ChargeRate_SetTaxRateToZero_Fail()
{
var chargeRate = new ChargeRate(0, 5m);
}
