public void GetDenominationsTestWithSomeInvalidBills()
{
AtmMachine machine = GetTestAtmMachine();
var result = AtmMachineManagerHelper.GetDenominations("I $50 $37 $100", machine);
Assert.IsTrue(result.Count() == 2);
}
public void IsValidCommandTestWithInvalidCommand()
{
var input = "K";
string command;
bool result = AtmMachineManagerHelper.IsValidCommand(input, out command);
Assert.IsFalse(result);
}