public void TestGetExpectedRent()
{
//most straight foward example
var firstOfYear = new DateTime(DateTime.Today.Year, 1, 1);
var testSubject = new Rent(null, firstOfYear, 12, new Pecuniam(700), new Pecuniam(0));
var testResult = testSubject.GetExpectedTotalRent(new DateTime(DateTime.Today.Year, 3,1));
//only two whole months have passed but rent's due on the first
Assert.AreEqual(new Pecuniam(700*3), testResult);
//after 15 days only first rent is due
testResult = testSubject.GetExpectedTotalRent(firstOfYear.AddDays(15));
Assert.AreEqual(new Pecuniam(700), testResult);
//back the signing date to middle of Dec
var newSigningDate = firstOfYear.AddDays(-16);
testSubject = new Rent(null, newSigningDate, 12, new Pecuniam(700), new Pecuniam(0));
//this should be only the pro-rated amount, first full month is due tommorrow
testResult = testSubject.GetExpectedTotalRent(newSigningDate.AddDays(15));
Assert.AreEqual(new Pecuniam(350), testResult);
//add another day - this should be pro-rated amount plus first month
testResult = testSubject.GetExpectedTotalRent(firstOfYear.AddDays(16));
Assert.AreEqual(new Pecuniam(350 + 700), testResult);
//move to first of Feb - this should be pro-rated amount plus two months rent
testResult = testSubject.GetExpectedTotalRent(new DateTime(DateTime.Today.Year, 2, 1));
Assert.AreEqual(new Pecuniam(350 + 700*2), testResult);
//middle of march -should be prorated amount plus three months
testResult = testSubject.GetExpectedTotalRent(new DateTime(DateTime.Today.Year, 3, 15));
Assert.AreEqual(new Pecuniam(350 + 700*3), testResult);
//on the last day of march - should still be the same
testResult = testSubject.GetExpectedTotalRent(new DateTime(DateTime.Today.Year, 4, 1).AddDays(-1));
Assert.AreEqual(new Pecuniam(350 + 700 * 3), testResult);
}
/// <summary>
/// Creates random <see cref="Rent"/> instance with a history and adds
/// it to the <see cref="Opes.HomeDebt"/> collection.
/// </summary>
/// <param name="stdDevAsPercent"></param>
/// <remarks>
/// src [http://www.nmhc.org/Content.aspx?id=4708]
/// </remarks>
protected internal Pecuniam AddRent(double stdDevAsPercent = DF_STD_DEV_PERCENT)
{
if (!_isRenting)
return Pecuniam.Zero;
//create a rent object
var avgRent = (double)Rent.GetAvgAmericanRentByYear(null).Amount;
var randRent =
new Pecuniam(
(decimal) GetRandomFactorValue(FactorTables.HomeDebt, _homeDebtFactor, stdDevAsPercent, avgRent));
var term = 12;
var randDate = Etx.Date(0, DateTime.Today.AddDays(-2));
var rent = new Rent(_amer.Address, randDate, term, randRent, Etx.CoinToss ? new Pecuniam(250) : new Pecuniam(500))
{
Description = $"{term}-Month Lease"
};
_amer.Address.IsLeased = true;
//create payment history until current
var firstPmt = rent.GetMinPayment(randDate);
rent.PayRent(randDate.AddDays(1), firstPmt);
var rentDueDate = randDate.Month == 12
? new DateTime(randDate.Year + 1, 1, 1)
: new DateTime(randDate.Year, randDate.Month + 1, 1);
while (rentDueDate < DateTime.Today)
{
var paidRentOn = rentDueDate;
//move the date rent was paid to some late-date when person acts irresponsible
if (_amer.Personality.GetRandomActsIrresponsible())
paidRentOn = paidRentOn.AddDays(Etx.IntNumber(5, 15));
rent.PayRent(paidRentOn, randRent, GetPaymentNote(rent.Id));
rentDueDate = rentDueDate.AddMonths(1);
}
HomeDebt.Add(rent);
return randRent;
}
public void TestGetMinPayment()
{
//most straight foward example
var firstOfYear = new DateTime(DateTime.Today.Year, 1, 1);
var testSubject = new Rent(null, firstOfYear, 12,new Pecuniam(700), new Pecuniam(0));
//first rent due immediately
testSubject.PayRent(firstOfYear, new Pecuniam(-700));
//15 days later
var testResult = testSubject.GetMinPayment(firstOfYear.AddDays(15));
//paid first month so nothing should be due
Assert.AreEqual(0M, testResult.Amount);
//move signing back to mid Dec of prev year
var newSigningDate = new DateTime(DateTime.Today.Year-1, 12, 14);
testSubject = new Rent(null, newSigningDate, 12, new Pecuniam(700), new Pecuniam(0));
//pro-rated amount should be due immediately
testResult = testSubject.GetMinPayment(newSigningDate);
Assert.AreEqual(new Pecuniam(-396.67M), testResult);
//should be the same until first of next month
testResult = testSubject.GetMinPayment(new DateTime(DateTime.Today.Year - 1, 12, 31));
Assert.AreEqual(new Pecuniam(-396.67M), testResult);
//first month rent due
testResult = testSubject.GetMinPayment(firstOfYear);
Assert.AreEqual(new Pecuniam(-396.67M + -700), testResult);
//pay prorated amt
testSubject.PayRent(new DateTime(DateTime.Today.Year - 1, 12, 31), new Pecuniam(-396.67M));
//should still be due one months
testResult = testSubject.GetMinPayment(firstOfYear);
Assert.AreEqual(new Pecuniam(-700), testResult);
//pay first month at exact same time only as another transaction
testSubject.PayRent(new DateTime(DateTime.Today.Year - 1, 12, 31), new Pecuniam(-700));
//since rent is not due until tommorrow - there is a 700 credit
testResult = testSubject.GetMinPayment(new DateTime(DateTime.Today.Year - 1, 12, 31));
Assert.AreEqual(700.0M, testResult.Amount );
//very next day should be current
testResult = testSubject.GetMinPayment(new DateTime(DateTime.Today.Year, 1, 1));
Assert.AreEqual(0M, testResult.Amount);
//pay some part of next month ahead of due
testSubject.PayRent(new DateTime(DateTime.Today.Year, 1, 18), new Pecuniam(-300));
//should register as a credit
testResult = testSubject.GetMinPayment(new DateTime(DateTime.Today.Year, 1, 18));
Assert.AreEqual(new Pecuniam(300), testResult);
//at first of next month rent less the credit should be due
testResult = testSubject.GetMinPayment(new DateTime(DateTime.Today.Year, 2, 1));
Assert.AreEqual(new Pecuniam(300-700), testResult);
}