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_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_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()));
}