public void Add_To_Wallet(decimal initialBalance, decimal additionBalance) { SimpleWallet wallet = new SimpleWallet(); wallet.Add(initialBalance); decimal walletContentsPrevious = wallet.GetBalance(); wallet.Add(additionBalance); decimal walletContentNext = wallet.GetBalance(); decimal difference = walletContentNext - walletContentsPrevious; Assert.That(difference.Equals(additionBalance)); }
public void Subtract_From_Filled_Wallet_Result_Is_0() { SimpleWallet wallet = new SimpleWallet(); wallet.Add(20); wallet.Subtract(20); Assert.That(wallet.GetBalance().Equals(0)); }
public void Subtract_From_Filled_Wallet_Result_Is_Remainder() { SimpleWallet wallet = new SimpleWallet(); wallet.Add(20); wallet.Subtract(10); Assert.IsTrue(wallet.GetBalance() > 0); }
public void Subtract_From_Wallet_Result_Is_Correct(decimal initialValue, decimal finalValue, decimal result) { SimpleWallet wallet = new SimpleWallet(); wallet.Add(initialValue); wallet.Subtract(finalValue); Assert.That(result.Equals(wallet.GetBalance())); }
public void Negative_Add_To_Wallet() { IWallet wallet = new SimpleWallet(); var exception = Assert.Throws <NegativeAdditionException>(() => { wallet.Add(-1); }); Assert.That(exception.GetType() == typeof(NegativeAdditionException)); }
public void Subtract_From_Balance_Raises_Event() { SimpleWallet wallet = new SimpleWallet(); decimal walletBalance = 0; wallet.Add(10); IVendingMachineInternal machineInternal = new FakeVendingMachineInternal(); wallet.Init(machineInternal); ((IVendingMachineExternal)machineInternal).WalletValueChanged += balance => { walletBalance = balance; }; wallet.Subtract(5); Assert.That(walletBalance.Equals(5)); }
public void Add_In_Balance_Raises_Event() { //Arrange IWallet wallet = new SimpleWallet(); //Act decimal walletBalance = 0; IVendingMachineInternal machineInternal = new FakeVendingMachineInternal(); wallet.Init(machineInternal); ((IVendingMachineExternal)machineInternal).WalletValueChanged += balance => { walletBalance = balance; }; wallet.Add(10); //Assert Assert.That(walletBalance.Equals(10)); }