public void ShoppingCartAddApples()
{
const string rulesFile = "price-rules-apple.txt";
const string cartFile = "shoppingcart-5apples.txt";
const decimal expected = 27.50m;
const bool compound = true;
var cp = new CartProcessor(rulesFile, cartFile, compound);
var cart = cartMapper.ReadShoppingList(cartFile);
var rules = ruleMapper.ReadRules(rulesFile);
Assert.AreEqual(expected, cp.CalculatePrice("apple", cart["apple"], rules["apple"]));
}
public void TestBrokenSavingRule()
{
const string rulesFile = "brokenrules-saving.txt";
const string cartFile = "shoppingcart-5apples.txt";
const bool compound = true;
var cp = new CartProcessor(rulesFile, cartFile, compound);
var rules = ruleMapper.ReadRules(rulesFile);
Assert.AreEqual(1, rules.Keys.Count);
var cart = cartMapper.ReadShoppingList(cartFile);
Assert.AreEqual(1, cart.Keys.Count);
decimal saved;
var total = cp.CalculateCartTotal(cart, rules, compound, out saved);
Assert.AreEqual(5m, total);
Assert.AreEqual(0m, saved);
}
public void TestCalculateMultipleSavings()
{
const string rulesFile = "price-rules-many.txt";
const string cartFile = "shoppingcart-ApplesBananasOranges.txt";
const bool compound = true;
var cp = new CartProcessor(rulesFile, cartFile, compound);
var rules = ruleMapper.ReadRules(rulesFile);
Assert.AreEqual(3, rules.Keys.Count);
var cart = cartMapper.ReadShoppingList(cartFile);
Assert.AreEqual(3, cart.Keys.Count);
var savings = cp.CalculateAmountSaved(cart["apple"], rules["apple"], compound);
Assert.AreEqual(10, savings);
savings += cp.CalculateAmountSaved(cart["banana"], rules["banana"], compound);
Assert.AreEqual(10.6m, savings);
savings += cp.CalculateAmountSaved(cart["orange"], rules["orange"], compound);
Assert.AreEqual(10.85m, savings);
}
static void Main(string[] args)
{
Console.WriteLine("******************************************************");
Console.WriteLine("* _____ _____ *");
Console.WriteLine("* / ____| / ____| *");
Console.WriteLine("* | | __ _ __ ___ ___ ___ _ __ _ _| | ___ *");
Console.WriteLine("* | | |_ | '__/ _ \\ / __/ _ \\ '__| | | | | / _ \\ *");
Console.WriteLine("* | |__| | | | (_) | (_| __/ | | |_| | |___| (_) | *");
Console.WriteLine("* \\_____|_| \\___/ \\___\\___|_| \\__, |\\_____\\___/ *");
Console.WriteLine("* __/ | *");
Console.WriteLine("* |___/ *");
Console.WriteLine("******************************************************");
Console.WriteLine();
Console.WriteLine();
//read in file names
Console.WriteLine("Please enter name of price rules text file (in AppData folder) or leave empty to use default:");
var ruleFile = Console.ReadLine();
Console.WriteLine("Please enter name of grocery list text file (in AppData folder) or leave empty to use default:");
var listFile = Console.ReadLine();
//or use default file names from the app.config
if (string.IsNullOrWhiteSpace(ruleFile)) ruleFile = AppEnvironment.PriceRulesTextFile;
if (string.IsNullOrWhiteSpace(listFile)) listFile = AppEnvironment.CartTextFile;
//Process shopping cart and
var cp = new CartProcessor(ruleFile, listFile, AppEnvironment.CompoundSavings);
cp.CheckOut();
Console.WriteLine("Press any key to exit.");
Console.ReadKey();
Console.WriteLine();
Console.WriteLine("Have a great day! Please come again!");
Thread.Sleep(2000); //Take 2 seconds to exit
}
public void TestCalculateMultipleTotal()
{
const string rulesFile = "price-rules-many.txt";
const string cartFile = "shoppingcart-ApplesBananasOranges.txt";
const bool compound = true;
var cp = new CartProcessor(rulesFile, cartFile, compound);
var rules = ruleMapper.ReadRules(rulesFile);
Assert.AreEqual(3, rules.Keys.Count);
var cart = cartMapper.ReadShoppingList(cartFile);
Assert.AreEqual(3, cart.Keys.Count);
decimal saved;
var total = cp.CalculateCartTotal(cart, rules, true, out saved);
Assert.AreEqual(36m, total);
Assert.AreEqual(10.85m, saved);
}
public void TestTotalNonCompound()
{
const string rulesFile = "rules-compound.txt";
const string cartFile = "shoppingcart-ApplesBananasOranges.txt";
const bool compound = false;
var cp = new CartProcessor(rulesFile, cartFile, compound);
var rules = ruleMapper.ReadRules(rulesFile);
Assert.AreEqual(3, rules.Keys.Count);
var cart = cartMapper.ReadShoppingList(cartFile);
Assert.AreEqual(3, cart.Keys.Count);
decimal saved;
var total = cp.CalculateCartTotal(cart, rules, compound, out saved);
Assert.AreEqual(36m, total);
Assert.AreEqual(13.25m, saved);
}
public void TestSavingsNonCompoundRules()
{
const string rulesFile = "rules-compound.txt";
const string cartFile = "shoppingcart-ApplesBananasOranges.txt";
const bool compound = false;
var cp = new CartProcessor(rulesFile, cartFile, false);
var rules = ruleMapper.ReadRules(rulesFile);
Assert.AreEqual(3, rules.Keys.Count);
var cart = cartMapper.ReadShoppingList(cartFile);
Assert.AreEqual(3, cart.Keys.Count);
var savings = cp.CalculateAmountSaved(cart["apple"], rules["apple"], compound);
Assert.AreEqual(10m, savings);
savings += cp.CalculateAmountSaved(cart["banana"], rules["banana"], compound);
Assert.AreEqual(13m, savings);
savings += cp.CalculateAmountSaved(cart["orange"], rules["orange"], compound);
Assert.AreEqual(13.25m, savings);
}
public void TestCalculateSavings()
{
const string rulesFile = "price-rules-apple.txt";
const string cartFile = "shoppingcart-5apples.txt";
const decimal expected = 0m;
const bool compound = true;
var cp = new CartProcessor(rulesFile, cartFile, compound);
var cart = cartMapper.ReadShoppingList(cartFile);
var rules = ruleMapper.ReadRules(rulesFile);
var savings = cp.CalculateAmountSaved(cart["apple"], rules["apple"], compound);
Assert.AreEqual(expected, savings);
}