Commit Graph

106 Commits

Author SHA1 Message Date
Ed Hennis
c81b26b09e Add a few minor changes (#6158)
- Updates or fixes a couple of things I noticed while reviewing changes
  to the spec.
- Rename sfPreviousPaymentDate to sfPreviousPaymentDueDate.
- Make the vault asset cap check added in #6124 a little more robust:
  1. Check in preflight if the vault is _already_ over the limit.
  2. Prevent overflow when checking with the loan value. (Subtract
     instead of adding, in case the values are near maxint. Both return
     the same result. Also add a unit test so each case is covered.
2025-12-22 17:38:39 -05:00
Vito Tumas
b9aa354782 Fix Overpayment ValueChange calculation in Lending Protocol (#6114)
- Adds loan state to LoanProperties.
- Cleans up computeLoanProperties.
- Fixes missing management fee from overpayment.
2025-12-19 00:14:28 +00:00
Vito Tumas
28fd66097b Ensure vault asset cap is not exceeded (#6124) 2025-12-17 22:38:10 +00:00
Jingchen
0aa4eed0f7 Check permissions in LoanSet and LoanPay (#6108) 2025-12-17 04:46:51 +00:00
Vito Tumas
3971411924 Fix some minor bugs in Lending Protocol (#6101)
- add nodiscard to unimpairLoan, and check result in LoanPay
- add a check to verify that issuer exists
- improve LoanManage error code for dust amounts
2025-12-17 01:30:41 +00:00
Ed Hennis
0f9078c5c5 Merge remote-tracking branch 'XRPLF/ximinez/lending-XLS-66-2' into ximinez/lending-XLS-66-ongoing
* XRPLF/ximinez/lending-XLS-66-2:
  Change some instances of View info() to header()
  Update rippled to xrpl
  refactor: Rename `ripple` namespace to `xrpl` (5982)
  refactor: Move JobQueue and related classes into xrpl.core module (6121)
  refactor: Rename `rippled` binary to `xrpld` (5983)
  refactor: rename info() to header() (6138)
  refactor: rename `LedgerInfo` to `LedgerHeader` (6136)
  refactor: clean up `RPCHelpers` (5684)
  chore: Fix docs readme and cmake (6122)
  chore: Clean up .gitignore and .gitattributes (6001)
  chore: Use updated secp256k1 recipe (6118)
2025-12-11 18:56:29 -05:00
Ed Hennis
416e12a1a4 Change some instances of View info() to header() 2025-12-11 18:52:04 -05:00
Ed Hennis
5eec3305c1 Update rippled to xrpl 2025-12-11 18:29:09 -05:00
Ed Hennis
5ceb915be4 Merge branch 'ximinez/lending-XLS-66-2' into ximinez/lending-XLS-66-ongoing 2025-12-05 21:12:57 -05:00
Ed Hennis
af43572ee5 Review feedback from @shawnxie999: even more rounding
- Round the initial total value computation upward, unless there is
  0-interest.
- Rename getVaultScale to getAssetsTotalScale, and convert one incorrect
  computation to use it.
- Use adjustImpreciseNumber for LossUnrealized.
- Add some logging to computeLoanProperties.
2025-12-05 21:08:01 -05:00
Vito Tumas
354531f946 Fix Overpayment Calculation (#6087)
- Adds additional unit tests to cover math calculations.
- Removes unused methods.
2025-12-04 12:54:25 -05:00
Ed Hennis
e2e9582ff1 Test updates - show balances in runLoan() 2025-12-03 12:35:56 -05:00
Ed Hennis
4c28e750ff Review feedback from @gregtatcam: compute vs. calculate
- Rename the LendingHelper functions that started with `calculate` to
  start with `compute`.
2025-11-23 21:41:38 -05:00
Ed Hennis
4ba2514bfa Review feedback from @gregtatcam: LoanDeltas
- Renamed to LoanStateDeltas, and document what it's for
2025-11-23 21:28:09 -05:00
Ed Hennis
27a7138f88 Review feedback from @gregtatcam: constructRoundedLoanState
- Rename the overload of constructRoundedLoanState that takes components
  as inputs to constructLoanState. The original function did no rounding
  or enforcement of the inputs being rounded.
- Left the overload constructRoundedLoanState(SLE::const_ref loan)
  alone, because Loan objects are assumed to be rounded.
2025-11-23 21:09:56 -05:00
Ed Hennis
63724e4405 Review feedback from @gregtatcam: seconds per year
- Define a constexpr secondsInYear in LedgerHelpers.h
2025-11-23 00:03:52 -05:00
Ed Hennis
973a105959 Review feedback: test coverage, round debt total
- Add some test cases to improve coverage, and exclude some lines from
  coverage.
- Rounds the Broker.DebtTotal to the Vault scale any time it is
  modified. This should reduce rounding errors.
- Ensure that no debt is left for the Broker after the last loan is
  deleted. This ensures that any accumulated rounding errors are
  resolved.
2025-11-22 16:07:07 -05:00
Ed Hennis
1cec91e72d Move protocol.h values into namespace Lending 2025-11-21 17:20:43 -05:00
Ed Hennis
8a1f244682 Updated overpayment processing
- Added a test for RIPD-4125
2025-11-20 00:17:33 -05:00
Ed Hennis
fd115cfc13 Address my review feedback on (#6017)
- Shortcut on issuer match in canTransfer.
- An asset can transfer if either trustline enabled rippling, so both
  must have it disabled for the transfer to fail with terNO_RIPPLE.
- Remove unnecessary asfDefaultRipple sets in unit tests.
- Add a new unit test helper class: testline, and a macro: THISLINE.
  When included as a parameter to Env::operator(), will include the line
  number of the transaction that didn't get the expected result. Works
  similarly to BEAST_EXPECT. I didn't do the same for the file name,
  because that can be deduced from the testcase name.
2025-11-18 18:31:10 -05:00
Bronek Kozicki
d8b944c218 Enforce assets are transferable (#6017)
- Includes unit tests for terNO_RIPPLE.
- Switch auth mode to weak when submitter is destination.
- Require rippling enabled for vault deposits or withdrawals.
2025-11-18 18:28:59 -05:00
Vito Tumas
31d6ad727e Refactors method and struct names (#6039)
- remove unused method
- rename computeFee to computeManagementFee
- rename calculateRounded to constructRounded
- remove redundancies in LoanDeltas struct
- rename PaymentComponentsPlus to ExtendedPaymentComponents
- additional logging
2025-11-15 08:48:38 +00:00
Ed Hennis
b9fdf9e564 Add the testPoC_UnsignedUnderflowOnFullPayAfterEarlyPeriodic
- Updated to reflect that the issue in RIPD-3971 has been resolved by
  commit 4396b77c4b
2025-11-14 12:52:27 -05:00
Ed Hennis
c65a311ad1 Remove a bunch of obsolete code, marked by "#if LOANCOMPLETE" 2025-11-13 14:26:47 -05:00
Ed Hennis
ad124ce7b2 Fix balance checking assertion in LoanPay when issuer is borrower
- Resolves RIPD-4096
2025-11-13 01:51:07 -05:00
Ed Hennis
ef66a1cc0e Disable inner Batch transactions for Vault and Loan types 2025-11-12 13:51:57 -05:00
Ed Hennis
6c375f1346 Convert sfNextPaymentDueDate from optional to default
- Simplifies some of the updates and checks
2025-11-11 12:02:58 -05:00
Ed Hennis
4396b77c4b Add tfLoanLatePayment flag; full payment is no longer a special case
- A regular payment that is late, or a tfLoanLatePayment that is not
  late will fail.
- Flags are mutually exclusive.
- Add a few interest computation shortcuts and overflow prevention
  checks that return 0 if there's no time to compute for.
2025-11-10 23:17:42 -05:00
Ed Hennis
1c99243ec2 Fix service fee accounting when a borrower is the broker (#6016)
- Add unit-test to verify the fix.
2025-11-10 21:10:13 -05:00
Ed Hennis
7712cbdfcc Fix build issue - unused variable 2025-11-10 21:02:01 -05:00
Ed Hennis
2f064893bb test: Add a test case reproducing the issue in RIPD-3902 2025-11-10 19:50:15 -05:00
Ed Hennis
6ad4b29878 Always round cover minimum calculations up
- Addresses RIPD-4016.
- Add and update testRoundingAllowsUndercoverage() unit test from ticket.
2025-11-10 17:59:10 -05:00
Ed Hennis
a9796d0210 Minor test fixes
- Don't deposit cover if the amount is 0.
- Handle missing next payment date in getCurrentState.
2025-11-09 20:27:59 -05:00
Ed Hennis
b5b31efe0b Fix RIPD-3901 - faulty assert
- Assert requires that an overpayment reduces the value of a loan. If
  the overall loan interest is low enough, it could leave it unchanged.
  Update the assert to require that the overpayment does not increase
  the value of the loan.
- Adds a unit test provided by @gregtatcam to demonstrate this issue.
2025-11-09 17:37:46 -05:00
Ed Hennis
e00fea9934 Update the test case for RIPD-3459 with more detailed output data 2025-11-08 22:47:50 -05:00
Ed Hennis
e3ea23cff5 Add test case to reproduce RIPD-3459
- Improve a few loan test helper functions.
- Make Loan.GracePeriod a default field.
2025-11-08 19:04:32 -05:00
Ed Hennis
77d5826297 Add Grace Period to testLoanNextPaymentDueDateOverflow
- Demonstrates that Grace Period can overflow.
- Expected to fail.
2025-11-07 15:37:32 -05:00
Gregory Tsipenyuk
ebfca636fc Implicitly authorize Vault and LoanBroker pseudo-accounts (#5976)
- Vault and LoanBroker pseudo-accounts can hold MPTs, regardless of MPTRequireAuth setting.
- Add requireAuth check in LoanBrokerCoverDeposit and LoanPay.
- Fail attempts to unauthorize pseudo-accounts by MPT issuers.
2025-11-07 05:39:34 +00:00
Ed Hennis
2cb0ca5ad2 Refactor loan test helpers into reusable functions
- Try to reproduce RIPD-3831
2025-11-06 23:49:10 -05:00
Gregory Tsipenyuk
c56387d124 Fix empty/zero broker ID in LoanBrokerSet and LoanSet (#5977)
- Add checks for empty/zero brokerID where needed
- Extend unit-tests.
2025-11-07 02:05:08 +00:00
Ed Hennis
2264713d52 fix: Improve rounding for IOU loans
- Scale the loan to the Vault, so that amounts moving to the vault are
  less likely to have rounding errors.
- Similar to LoanPay, when LoanManage defaults a loan, round the amounts
  to the Vault scale (because the Vault scale can change) before
  applying them to the Vault.
2025-11-06 19:25:37 -05:00
Ed Hennis
560ff824df Another arbitrary test case to try 2025-11-06 19:12:02 -05:00
Ed Hennis
07ec253f2e Add testDustManipulation test, which is expected to fail 2025-11-06 12:48:02 -05:00
Ed Hennis
165478b929 Remove the shortage code completely 2025-11-05 13:28:03 -05:00
Ed Hennis
95fdbe520f Partially revert aed8e2b166 Fill in payment computation shortages (#5941)
- Do not attempt to fill in payment computation shortages. Fixes, tests,
  and optimizations are left intact.
2025-11-05 12:48:14 -05:00
Ed Hennis
34db04ffc1 Update Lending files for the xrpl rename 2025-11-04 19:37:58 -05:00
Ed Hennis
aed8e2b166 Fill in payment computation shortages (#5941)
- Ensures a consistent fixed payment amount for the entire life of the
  loan, except the final payment, which is guaranteed to be the same or
  smaller.
- Convert some Loan structs to compute values that had need manual
  updates to stay consistent.
- Fail the transaction in `LoanPay` if it violates the Vault `assetsAvailable <=
  assetsTotal` invariant.
- Use constexpr to check that min mantissa value for Number and STAmount
  is a power of 10, and compute the max in terms of the min.
- Improve unit tests:
  - Use BrokerParameters and Loan Parameters instead of semi-global
    class values
  - In tests, check that the expected number of loan payments are made.
  - Add LoanBatch manual test to generate a set number of random loans,
    set them up, and pay them off.
  - Add LoanArbitrary manual test to run a single test with specific
    (hard-coded for now) parameters.
  - Add Number support to XRP_t.
2025-11-04 22:56:16 +00:00
Ed Hennis
cdd6ad4ba4 test: Fix test set up, since the order of preclaim checks changed
- Need to have multisign set up to get to the fee check
2025-11-03 18:00:10 -05:00
Ed Hennis
4920e65b14 fix: LoanBrokerSet is malformed if Cover fields don't align
- sfCoverRateMinimum and sfCoverRateLiquidation must be both zero or
  both non-zero, because both are used in the default amount
  calculations, which is the only place they're really meaningful.
2025-11-03 12:31:20 -05:00
Bronek Kozicki
b472cc3493 Unit tests for multisigned LoanSet counterparty 2025-10-31 16:51:37 -04:00