public void DontCalcInterestIfAmountLessThan500()
{
var calculator = new TesterInterestCalculator();
calculator.Principal = 499.99;
calculator.InterestRate = 0.05;
calculator.Time = 2;
var bank = new Bank(calculator);
bank.RunProcessing();
Assert.IsFalse(calculator.CalculateWasCalled);
}
public void CalcInterestIfAmountOver500()
{
var calculator = new TesterInterestCalculator();
calculator.Principal = 500.01;
calculator.InterestRate = 0.05;
calculator.Time = 2;
var bank = new Bank(calculator);
bank.RunProcessing();
Assert.IsTrue(calculator.CalculateWasCalled);
}
