public void WithDraw_Failed_On_Insufficient_Fund()
{
IAccount account = new CashAccount("1234123412341234", 100);
ICard card = new CashCard(account, 1234);
var retVal = card.WithDraw(1234, 200);
Assert.IsFalse(retVal == 0);
}
public void WithDraw_Successful_On_Sufficient_Fund()
{
IAccount account = new CashAccount("1234123412341234", 100);
ICard card = new CashCard(account, 1234);
var retVal = card.WithDraw(1234, 5);
Assert.IsTrue(retVal == 0);
}
public void WithDrawal_Failed_On_Invalid_Pin()
{
var initBalance = 100;
IAccount account = new CashAccount("1234123412341234", initBalance);
ICard card = new CashCard(account, 1234);
var retVal = card.WithDraw(9999, 5);
}
public void WithDrawal_Successful_On_Valid_Pin()
{
var initBalance = 100;
IAccount account = new CashAccount("1234123412341234", initBalance);
ICard card = new CashCard(account, 1234);
var retVal = card.WithDraw(1234, 5);
Assert.IsTrue(retVal == 0);
}
public void Parallel_WithDrawals_Failed_After_Funds_Runout()
{
var initBalance = 100;
IAccount account = new CashAccount("1234123412341234", initBalance);
ICard card = new CashCard(account, 1234);
int total = 0;
Parallel.For(0, 10, () => 0, (i, loop, subtotal) => {
subtotal += card.WithDraw(1234, 20);
return(subtotal);
},
(x) => {
Interlocked.Add(ref total, x);
}
);
Assert.IsTrue(total == -5);
}