FINERACT-2152: Interest pause and existing interest periods

This commit is contained in:
Oleksii Novikov
2025-01-31 15:00:36 +01:00
committed by Adam Saghy
parent 00d3158074
commit de462082de
4 changed files with 522 additions and 43 deletions
@@ -26,6 +26,7 @@ import java.math.MathContext;
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.Optional;
@@ -166,18 +167,13 @@ public class ProgressiveLoanInterestScheduleModel {
}
final List<RepaymentPeriod> affectedPeriods = repaymentPeriods.stream()//
.filter(period -> isPeriodInRange(period, fromDate, endDate))//
.filter(period -> period.getFromDate().isBefore(endDate) && !period.getDueDate().isBefore(fromDate))//
.toList();
affectedPeriods.forEach(period -> insertInterestPausePeriods(period, fromDate, endDate));
return affectedPeriods.stream().findFirst();
}
private boolean isPeriodInRange(final RepaymentPeriod repaymentPeriod, final LocalDate fromDate, final LocalDate endDate) {
return DateUtils.isDateInRangeFromExclusiveToInclusive(fromDate, repaymentPeriod.getFromDate(), repaymentPeriod.getDueDate())
|| DateUtils.isDateInRangeFromExclusiveToInclusive(endDate, repaymentPeriod.getFromDate(), repaymentPeriod.getDueDate());
}
Optional<RepaymentPeriod> findRepaymentPeriodForBalanceChange(final LocalDate balanceChangeDate) {
if (balanceChangeDate == null) {
return Optional.empty();
@@ -235,38 +231,41 @@ public class ProgressiveLoanInterestScheduleModel {
repaymentPeriod.getInterestPeriods().add(interestPeriod);
}
private void insertInterestPausePeriods(final RepaymentPeriod repaymentPeriod, final LocalDate fromDate, final LocalDate endDate) {
final InterestPeriod previousInterestPeriod = findPreviousInterestPeriod(repaymentPeriod, fromDate);
final LocalDate originalFromDate = previousInterestPeriod.getFromDate();
final LocalDate originalDueDate = previousInterestPeriod.getDueDate();
final LocalDate newDueDate = calculateNewDueDate(previousInterestPeriod, fromDate.minusDays(1));
private void insertInterestPausePeriods(final RepaymentPeriod repaymentPeriod, final LocalDate pauseStart, final LocalDate pauseEnd) {
final LocalDate effectivePauseStart = pauseStart.minusDays(1);
final LocalDate finalPauseStart = effectivePauseStart.isBefore(repaymentPeriod.getFromDate()) ? repaymentPeriod.getFromDate()
: effectivePauseStart;
final LocalDate finalPauseEnd = pauseEnd.isAfter(repaymentPeriod.getDueDate()) ? repaymentPeriod.getDueDate() : pauseEnd;
if (fromDate.isAfter(originalFromDate) && endDate.isBefore(originalDueDate)) {
previousInterestPeriod.setDueDate(newDueDate);
final InterestPeriod interestPausePeriod = new InterestPeriod(repaymentPeriod, newDueDate, endDate, BigDecimal.ZERO,
BigDecimal.ZERO, zero, zero, zero, mc, true);
repaymentPeriod.getInterestPeriods().add(interestPausePeriod);
final InterestPeriod interestAfterPausePeriod = new InterestPeriod(repaymentPeriod, endDate, originalDueDate, BigDecimal.ZERO,
BigDecimal.ZERO, zero, zero, zero, mc, false);
repaymentPeriod.getInterestPeriods().add(interestAfterPausePeriod);
final List<InterestPeriod> newInterestPeriods = new ArrayList<>();
for (final InterestPeriod interestPeriod : repaymentPeriod.getInterestPeriods()) {
if (interestPeriod.getDueDate().isBefore(finalPauseStart) || !interestPeriod.getFromDate().isBefore(finalPauseEnd)) {
newInterestPeriods.add(interestPeriod);
} else {
if (interestPeriod.getFromDate().isBefore(finalPauseStart)) {
final InterestPeriod leftSlice = new InterestPeriod(repaymentPeriod, interestPeriod.getFromDate(), finalPauseStart,
interestPeriod.getRateFactor(), interestPeriod.getRateFactorTillPeriodDueDate(),
interestPeriod.getDisbursementAmount(), interestPeriod.getBalanceCorrectionAmount(),
interestPeriod.getOutstandingLoanBalance(), interestPeriod.getMc(), false);
newInterestPeriods.add(leftSlice);
}
if (interestPeriod.getDueDate().isAfter(finalPauseEnd)) {
final InterestPeriod rightSlice = new InterestPeriod(repaymentPeriod, finalPauseEnd, interestPeriod.getDueDate(),
interestPeriod.getRateFactor(), interestPeriod.getRateFactorTillPeriodDueDate(),
interestPeriod.getDisbursementAmount(), interestPeriod.getBalanceCorrectionAmount(),
interestPeriod.getOutstandingLoanBalance(), interestPeriod.getMc(), false);
newInterestPeriods.add(rightSlice);
}
}
}
if (fromDate.isAfter(originalFromDate) && endDate.isAfter(originalDueDate)) {
previousInterestPeriod.setDueDate(newDueDate);
final InterestPeriod interestPausePeriod = new InterestPeriod(repaymentPeriod, newDueDate, originalDueDate, BigDecimal.ZERO,
BigDecimal.ZERO, zero, zero, zero, mc, true);
repaymentPeriod.getInterestPeriods().add(interestPausePeriod);
}
final InterestPeriod pausedSlice = new InterestPeriod(repaymentPeriod, finalPauseStart, finalPauseEnd, BigDecimal.ZERO,
BigDecimal.ZERO, zero, zero, zero, mc, true);
newInterestPeriods.add(pausedSlice);
if (fromDate.isBefore(originalFromDate) && endDate.isBefore(originalDueDate)) {
repaymentPeriod.getInterestPeriods().clear();
final InterestPeriod interestPausePeriod = new InterestPeriod(repaymentPeriod, newDueDate, originalDueDate, BigDecimal.ZERO,
BigDecimal.ZERO, zero, zero, zero, mc, true);
repaymentPeriod.getInterestPeriods().add(interestPausePeriod);
InterestPeriod interestAfterPausePeriod = new InterestPeriod(repaymentPeriod, endDate, originalDueDate, BigDecimal.ZERO,
BigDecimal.ZERO, zero, zero, zero, mc, false);
repaymentPeriod.getInterestPeriods().add(interestAfterPausePeriod);
}
newInterestPeriods.sort(Comparator.comparing(InterestPeriod::getFromDate));
repaymentPeriod.setInterestPeriods(newInterestPeriods);
}
private InterestPeriod findPreviousInterestPeriod(final RepaymentPeriod repaymentPeriod, final LocalDate date) {
@@ -45,7 +45,8 @@ public class RepaymentPeriod {
@Getter
private final LocalDate dueDate;
@Getter
private final List<InterestPeriod> interestPeriods;
@Setter
private List<InterestPeriod> interestPeriods;
@Setter
@Getter
private Money emi;
@@ -1411,13 +1411,327 @@ class ProgressiveEMICalculatorTest {
checkPeriod(interestSchedule, 0, 1, 17.01, 0.005833333333, 0.58, 16.43, 83.57);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.001609195402, 0.13, 0.13, 16.88, 66.69);
checkPeriod(interestSchedule, 1, 1, 17.01, 0.004224137931, 0.0, 0.13, 16.88, 66.69);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.005833333333, 0.0, 0.28, 16.73, 49.96);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.001693548387, 0.0, 0.28, 16.73, 49.96);
checkPeriod(interestSchedule, 2, 1, 17.01, 0.004139784946, 0.28, 0.28, 16.73, 49.96);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.24);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.19, 0.19, 16.82, 16.42);
checkPeriod(interestSchedule, 5, 0, 16.52, 0.005833333333, 0.1, 0.1, 16.42, 0.0);
}
@Test
public void test_interestPauseFirstDayOfMonthAmt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 2, 5));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.00564516129, 0.56, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 2, 17.01, 0.000188172043, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.000804597701, 0.0, 0.42, 16.59, 66.96);
checkPeriod(interestSchedule, 1, 1, 17.01, 0.005028735632, 0.42, 0.42, 16.59, 66.96);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.005833333333, 0.39, 0.39, 16.62, 50.34);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.62);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.2, 0.2, 16.81, 16.81);
checkPeriod(interestSchedule, 5, 0, 16.91, 0.005833333333, 0.1, 0.1, 16.81, 0.0);
}
@Test
public void test_interestPauseLastDayOfMonthAmt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 1, 10), LocalDate.of(2024, 1, 31));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.17, 16.84, 83.16);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.001505376344, 0.15, 0.17, 16.84, 83.16);
checkPeriod(interestSchedule, 0, 2, 17.01, 0.004139784946, 0.0, 0.17, 16.84, 83.16);
checkPeriod(interestSchedule, 0, 3, 17.01, 0.000188172043, 0.02, 0.17, 16.84, 83.16);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.005833333333, 0.49, 0.49, 16.52, 66.64);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.005833333333, 0.39, 0.39, 16.62, 50.02);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.3);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.19, 0.19, 16.82, 16.48);
checkPeriod(interestSchedule, 5, 0, 16.58, 0.005833333333, 0.1, 0.1, 16.48, 0.0);
}
@Test
public void test_interestPauseWholeMonthAmt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 2, 29));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.00564516129, 0.56, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 2, 17.01, 0.000188172043, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.005632183908, 0.0, 0.02, 16.99, 66.56);
checkPeriod(interestSchedule, 1, 1, 17.01, 0.000201149425, 0.02, 0.02, 16.99, 66.56);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.005833333333, 0.39, 0.39, 16.62, 49.94);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.22);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.19, 0.19, 16.82, 16.4);
checkPeriod(interestSchedule, 5, 0, 16.5, 0.005833333333, 0.1, 0.1, 16.4, 0.0);
}
@Test
public void test_interestPauseTwoWholeMonthsAmt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 31));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.00564516129, 0.56, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 2, 17.01, 0.000188172043, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.005833333333, 0.0, 0.0, 17.01, 66.54);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.00564516129, 0.0, 0.01, 17.0, 49.54);
checkPeriod(interestSchedule, 2, 1, 17.01, 0.000188172043, 0.01, 0.01, 17.0, 49.54);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 32.82);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.19, 0.19, 16.82, 16.0);
checkPeriod(interestSchedule, 5, 0, 16.09, 0.005833333333, 0.09, 0.09, 16.0, 0.0);
}
@Test
public void test_interestPauseAndExistedMultipleInterestPeriodsAmt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 2, 11), BigDecimal.valueOf(7.0));
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 2, 21), BigDecimal.valueOf(7.0));
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 2, 5), LocalDate.of(2024, 2, 15));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.58, 16.43, 83.57);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.005833333333, 0.58, 0.58, 16.43, 83.57);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.000603448276, 0.05, 0.3, 16.71, 66.86);
checkPeriod(interestSchedule, 1, 1, 17.01, 0.002212643678, 0.0, 0.3, 16.71, 66.86);
checkPeriod(interestSchedule, 1, 2, 17.01, 0.001005747126, 0.08, 0.3, 16.71, 66.86);
checkPeriod(interestSchedule, 1, 3, 17.01, 0.002011494253, 0.17, 0.3, 16.71, 66.86);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.005833333333, 0.39, 0.39, 16.62, 50.24);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.52);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.2, 0.2, 16.81, 16.71);
checkPeriod(interestSchedule, 5, 0, 16.81, 0.005833333333, 0.1, 0.1, 16.71, 0.0);
}
@Test
public void test_interestPauseBetweenRepaymentPeriodsAndExistedMultipleInterestPeriods_Amt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 2, 6), BigDecimal.valueOf(7.0));
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 2, 21), BigDecimal.valueOf(7.0));
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 3, 6), BigDecimal.valueOf(7.0));
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 3, 21), BigDecimal.valueOf(7.0));
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 2, 10), LocalDate.of(2024, 3, 10));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.58, 16.43, 83.57);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.005833333333, 0.58, 0.58, 16.43, 83.57);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.000804597701, 0.07, 0.14, 16.87, 66.7);
checkPeriod(interestSchedule, 1, 1, 17.01, 0.000804597701, 0.07, 0.14, 16.87, 66.7);
checkPeriod(interestSchedule, 1, 2, 17.01, 0.004224137931, 0.0, 0.14, 16.87, 66.7);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.001693548387, 0.0, 0.28, 16.73, 49.97);
checkPeriod(interestSchedule, 2, 1, 17.01, 0.001881720430, 0.13, 0.28, 16.73, 49.97);
checkPeriod(interestSchedule, 2, 1, 17.01, 0.00188172043, 0.13, 0.28, 16.73, 49.97);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.25);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.19, 0.19, 16.82, 16.43);
checkPeriod(interestSchedule, 5, 0, 16.53, 0.005833333333, 0.1, 0.1, 16.43, 0.0);
}
@Test
public void test_interestPauseOnFirstDayOfMonthAndExistedMultipleInterestPeriods_Amt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 2, 1), BigDecimal.valueOf(7.0));
emiCalculator.changeInterestRate(interestSchedule, LocalDate.of(2024, 2, 6), BigDecimal.valueOf(7.0));
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 2, 5));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.00564516129, 0.56, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 2, 17.01, 0.000188172043, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.000804597701, 0.0, 0.42, 16.59, 66.96);
checkPeriod(interestSchedule, 1, 1, 17.01, 0.005028735632, 0.42, 0.42, 16.59, 66.96);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.005833333333, 0.39, 0.39, 16.62, 50.34);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.62);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.2, 0.2, 16.81, 16.81);
checkPeriod(interestSchedule, 5, 0, 16.91, 0.005833333333, 0.1, 0.1, 16.81, 0.0);
}
@Test
public void test_interestPauseBorderedByPeriod_Amt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
repayment(1, LocalDate.of(2024, 1, 1), LocalDate.of(2024, 2, 1)),
repayment(2, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1)),
repayment(3, LocalDate.of(2024, 3, 1), LocalDate.of(2024, 4, 1)),
repayment(4, LocalDate.of(2024, 4, 1), LocalDate.of(2024, 5, 1)),
repayment(5, LocalDate.of(2024, 5, 1), LocalDate.of(2024, 6, 1)),
repayment(6, LocalDate.of(2024, 6, 1), LocalDate.of(2024, 7, 1)));
final BigDecimal interestRate = BigDecimal.valueOf(7.0);
final Integer installmentAmountInMultiplesOf = null;
Mockito.when(loanProductRelatedDetail.getAnnualNominalInterestRate()).thenReturn(interestRate);
Mockito.when(loanProductRelatedDetail.getDaysInYearType()).thenReturn(DaysInYearType.DAYS_360.getValue());
Mockito.when(loanProductRelatedDetail.getDaysInMonthType()).thenReturn(DaysInMonthType.DAYS_30.getValue());
Mockito.when(loanProductRelatedDetail.getRepaymentPeriodFrequencyType()).thenReturn(PeriodFrequencyType.MONTHS);
Mockito.when(loanProductRelatedDetail.getRepayEvery()).thenReturn(1);
Mockito.when(loanProductRelatedDetail.getCurrencyData()).thenReturn(currency);
final ProgressiveLoanInterestScheduleModel interestSchedule = emiCalculator.generatePeriodInterestScheduleModel(
expectedRepaymentPeriods, loanProductRelatedDetail, loanTermVariations, installmentAmountInMultiplesOf, mc);
final Money disbursedAmount = toMoney(100.0);
emiCalculator.addDisbursement(interestSchedule, LocalDate.of(2024, 1, 1), disbursedAmount);
emiCalculator.applyInterestPause(interestSchedule, LocalDate.of(2024, 2, 1), LocalDate.of(2024, 3, 1));
checkPeriod(interestSchedule, 0, 0, 17.01, 0.0, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 1, 17.01, 0.00564516129, 0.56, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 0, 2, 17.01, 0.000188172043, 0.0, 0.56, 16.45, 83.55);
checkPeriod(interestSchedule, 1, 0, 17.01, 0.005833333333, 0.0, 0.0, 17.01, 66.54);
checkPeriod(interestSchedule, 2, 0, 17.01, 0.005833333333, 0.39, 0.39, 16.62, 49.92);
checkPeriod(interestSchedule, 3, 0, 17.01, 0.005833333333, 0.29, 0.29, 16.72, 33.2);
checkPeriod(interestSchedule, 4, 0, 17.01, 0.005833333333, 0.19, 0.19, 16.82, 16.38);
checkPeriod(interestSchedule, 5, 0, 16.48, 0.005833333333, 0.1, 0.1, 16.38, 0.0);
}
@Test
public void test_reschedule_disbursedAmt100_dayInYears360_daysInMonth30_repayEvery1Month() {
final List<LoanScheduleModelRepaymentPeriod> expectedRepaymentPeriods = List.of(
@@ -1600,12 +1914,12 @@ class ProgressiveEMICalculatorTest {
final RepaymentPeriod repaymentPeriod = interestScheduleModel.repaymentPeriods().get(repaymentIdx);
final InterestPeriod interestPeriod = repaymentPeriod.getInterestPeriods().get(interestIdx);
Assertions.assertEquals(emiValue, toDouble(repaymentPeriod.getEmi()));
Assertions.assertEquals(rateFactor, toDouble(applyMathContext(interestPeriod.getRateFactor())));
Assertions.assertEquals(interestDue, toDouble(interestPeriod.getCalculatedDueInterest()));
Assertions.assertEquals(interestDueCumulated, toDouble(repaymentPeriod.getDueInterest()));
Assertions.assertEquals(principalDue, toDouble(repaymentPeriod.getDuePrincipal()));
Assertions.assertEquals(remaingBalance, toDouble(repaymentPeriod.getOutstandingLoanBalance()));
Assertions.assertAll("Check period", () -> Assertions.assertEquals(emiValue, toDouble(repaymentPeriod.getEmi())),
() -> Assertions.assertEquals(rateFactor, toDouble(applyMathContext(interestPeriod.getRateFactor()))),
() -> Assertions.assertEquals(interestDue, toDouble(interestPeriod.getCalculatedDueInterest())),
() -> Assertions.assertEquals(interestDueCumulated, toDouble(repaymentPeriod.getDueInterest())),
() -> Assertions.assertEquals(principalDue, toDouble(repaymentPeriod.getDuePrincipal())),
() -> Assertions.assertEquals(remaingBalance, toDouble(repaymentPeriod.getOutstandingLoanBalance())));
}
private static double toDouble(final Money value) {