public void Both_Card_Accessed__Same_Time_Will_Reduce_Linked_Account_Balance()
{
var tasks = new List <Task>();
for (int i = 0; i < 10; i++)
{
if (i % 2 == 0)
{
tasks.Add(Task.Factory.StartNew(() => card2.DebitAmount(.5f)));
}
else
{
tasks.Add(Task.Factory.StartNew(() => card1.DebitAmount(.5f)));
}
}
Task.WaitAll(tasks.ToArray());
Assert.AreEqual(5, jointAccount.Balance); //Init balance 10 , .5 * 5 + .5 * 5
}