public void Undo_TransferSmallerAmountThanBalance_ValidateToBalance()
{
var from = new BankAccount();
from.Deposit(100);
var to = new BankAccount();
var mtc = new MoneyTransferCommand(from, to, 70);
mtc.Call();
mtc.Undo();
Assert.That(to.Balance, Is.EqualTo(0));
}
public static void Test()
{
// var ba = new BankAccount();
// var deposit = new BankAccountCommand(ba, BankAccountCommand.Action.Deposit, 100);
// var withdraw = new BankAccountCommand(ba, BankAccountCommand.Action.Withdraw, 50);
// var composite = new CompositeBankAccountCommand(
// new []{deposit, withdraw});
//
// composite.Call();
// Console.WriteLine(ba);
//
// composite.Undo();
// Console.WriteLine(ba);
var from = new BankAccount();
from.Deposit(100); // we have deposited 100 dollars to this account
var to = new BankAccount();
Console.WriteLine($"making transaction of 100 dollars");
var mtc = new MoneyTransferCommand(from, to, 100); // making a transaction of 100 dollars to another account
mtc.Call();
Console.WriteLine(from); // the from account is left with 0 dollars
Console.WriteLine(to); // the to account has received the 100 dollars
// undoes all successful transactions
Console.WriteLine("Undoing previous transaction");
mtc.Undo();
Console.WriteLine(from);
Console.WriteLine(to);
// Suppose we make a transaction of 1000 dollars while the user from only has 100 dollars in his account
// In this case, the Call() of the transaction will catch the error and will fail, undoing the whole
// transaction in the process
Console.WriteLine($"making transaction of 1000 dollars, which will fail, due to insufficient resources");
var mtc2 = new MoneyTransferCommand(from, to, 1000);
mtc2.Call();
Console.WriteLine(from);
Console.WriteLine(to);
}
public void TestCompositeTransferMoney()
{
var from = new BankAccount();
from.Deposit(1000);
var to = new BankAccount();
var mtc = new MoneyTransferCommand(from, to, 250);
mtc.Call();
Console.WriteLine(from);
Console.WriteLine(to);
mtc.Undo();
Console.WriteLine(from);
Console.WriteLine(to);
}
static void Main(string[] args)
{
var from = new BankAccount();
from.Deposit(100);
var to = new BankAccount();
var mtc = new MoneyTransferCommand(from, to, 100);
mtc.Call();
WriteLine(from);
WriteLine(to);
mtc.Undo();
WriteLine(from);
WriteLine(to);
}
public void Test_money_transfer()
{
var from = new BankAccount();
from.Deposit(100);
var to = new BankAccount();
Debug.WriteLine($"From account: {from}");
Debug.WriteLine($"To account: {to}");
var transfer = new MoneyTransferCommand(from, to, 100);
transfer.Call();
Debug.WriteLine($"From account: {from}");
Debug.WriteLine($"To account: {to}");
transfer.Undo();
Debug.WriteLine($"From account: {from}");
Debug.WriteLine($"To account: {to}");
Assert.True(transfer.Succeeded);
}