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test: Add unit-test to verify correct behavior on broker deep freeze (#5904)

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* Add unit-test to verify correct behavior on broker deep freeze
This commit is contained in:
Gregory Tsipenyuk
2025-10-21 19:23:27 -04:00
committed by GitHub
parent 587cb2533c
commit 8757022312
1 changed files with 90 additions and 0 deletions
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90
src/test/app/Loan_test.cpp
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@@ -2615,6 +2615,95 @@ class Loan_test : public beast::unit_test::suite
}
}
void
testServiceFeeOnBrokerDeepFreeze()
{
testcase << "Service Fee On Broker Deep Freeze";
using namespace jtx;
using namespace loan;
Account const issuer("issuer");
Account const borrower("borrower");
Account const broker("broker");
auto const IOU = issuer["IOU"];
for (bool const deepFreeze : {true, false})
{
Env env(*this);
auto getCoverBalance = [&](BrokerInfo const& brokerInfo,
auto const& accountField) {
if (auto const le =
env.le(keylet::loanbroker(brokerInfo.brokerID));
BEAST_EXPECT(le))
{
auto const account = le->at(accountField);
if (auto const sleLine = env.le(keylet::line(account, IOU));
BEAST_EXPECT(sleLine))
{
STAmount balance = sleLine->at(sfBalance);
if (account > issuer.id())
balance.negate();
return balance;
}
}
return STAmount{IOU};
};
env.fund(XRP(20'000), issuer, broker, borrower);
env.close();
env(trust(broker, IOU(20'000'000)));
env(pay(issuer, broker, IOU(10'000'000)));
env(trust(borrower, IOU(20'000'000)));
env.close();
auto const brokerInfo = createVaultAndBroker(env, IOU, broker);
BEAST_EXPECT(getCoverBalance(brokerInfo, sfAccount) == IOU(1'000));
auto const keylet = keylet::loan(brokerInfo.brokerID, 1);
env(set(borrower, brokerInfo.brokerID, 10'000),
sig(sfCounterpartySignature, broker),
loanServiceFee(IOU(100).value()),
paymentInterval(100),
fee(XRP(100)));
env.close();
if (auto const le = env.le(keylet::loan(keylet.key));
BEAST_EXPECT(le))
{
if (deepFreeze)
{
env(trust(
issuer,
broker["IOU"](0),
tfSetFreeze | tfSetDeepFreeze));
env.close();
}
env(pay(borrower, keylet.key, IOU(10'100)), fee(XRP(100)));
env.close();
if (deepFreeze)
{
// The fee goes to the broker pseudo-account
BEAST_EXPECT(
getCoverBalance(brokerInfo, sfAccount) == IOU(1'100));
BEAST_EXPECT(
getCoverBalance(brokerInfo, sfOwner) == IOU(8'999'000));
}
else
{
// The fee goes to the broker account
BEAST_EXPECT(
getCoverBalance(brokerInfo, sfOwner) == IOU(8'999'100));
BEAST_EXPECT(
getCoverBalance(brokerInfo, sfAccount) == IOU(1'000));
}
}
};
}
void
testBasicMath()
{
@@ -2634,6 +2723,7 @@ public:
testBatchBypassCounterparty();
testWrongMaxDebtBehavior();
testLoanPayComputePeriodicPaymentValidRateInvariant();
testServiceFeeOnBrokerDeepFreeze();
testRPC();
testBasicMath();