public void TestSimpleInterestCalc()
{
var interest_10 = _interestCalculator.ComputeInterest(100, 0.10m);
var interest_05 = _interestCalculator.ComputeInterest(100, 0.05m);
var interest_01 = _interestCalculator.ComputeInterest(100, 0.01m);
Assert.AreEqual(10, interest_10); //Visa
Assert.AreEqual(5, interest_05); // MC
Assert.AreEqual(1, interest_01); // Discover
}
private BalanceInterest GenerateBalanceInterest(decimal balance, decimal interestRate)
=> new BalanceInterest
{
Balance = balance,
InterestPercent = interestRate,
Interest = balance < 0 ? 0 : _interestCalculator.ComputeInterest(balance, interestRate) // computes interest base don calc injected
};