public void TestCheckBalance()
{
string userName = "******";
int userPinNumber = 5252;
Assert.IsTrue(atm.IsAddCustomerDetail(userName, userPinNumber));
Assert.AreEqual("100000", atm.GetAccountBalance(userName, userPinNumber));
atm.GetWithdrawAmount(userName, userPinNumber, 4000);
Assert.AreEqual("96000", atm.GetAccountBalance(userName, userPinNumber));
Assert.AreNotEqual("2000", atm.GetAccountBalance(userName, userPinNumber));
Assert.AreEqual("PLEASE CHECK YOUR PIN-NUMBER", atm.GetAccountBalance("Name", userPinNumber));
Assert.AreEqual("PLEASE CHECK YOUR PIN-NUMBER", atm.GetAccountBalance(userName, 5766));
}
