public void ChargeLateFee_ShouldIncreaseBalance()
{
var basicLoan = LoanFactory.CreateLoan("basic", 100, 10M, 24);
basicLoan.ChargeLateFee();
basicLoan.Balance.Should().Be(225);
}
public void MakePayment_ShouldDecreaseBalanceByPaymentAmount()
{
var basicLoan = LoanFactory.CreateLoan("basic", 10000, 10M, 24);
basicLoan.MakePayment(2500);
basicLoan.Balance.Should().Be(7500);
}
public void CanCalculateInterest_ShouldIncreaseBalanceByRate()
{
var basicLoan = LoanFactory.CreateLoan("basic", 10000, 10M, 24);
var interestAccrued = basicLoan.ApplyInterest();
interestAccrued.Should().Be(1000);
basicLoan.Balance.Should().Be(11000);
}
public void MakePaymentGreaterThanBalance_ShouldThrowException()
{
var basicLoan = LoanFactory.CreateLoan("basic", 100, 10M, 24);
Assert.Throws <LoanOverpaymentException>(() => basicLoan.MakePayment(30000));
}
public void CreateInvalidLoanType_ShouldThrowException()
{
Assert.Throws <ArgumentException>(() => LoanFactory.CreateLoan("aiofnqweiufwiubfweif", 10000, 8.65M, 24));
}
public void CanCreateBasicLoan()
{
var basicLoan = LoanFactory.CreateLoan("basic", 10000, 8.65M, 24);
basicLoan.GetType().Name.Should().Be("BasicLoan");
}
