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EscrowToken_test.cpp
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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2024 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#include <test/jtx.h>
#include <xrpld/app/tx/applySteps.h>
#include <xrpld/ledger/Dir.h>
#include <xrpl/protocol/Feature.h>
#include <xrpl/protocol/Indexes.h>
#include <xrpl/protocol/TxFlags.h>
#include <xrpl/protocol/jss.h>
#include <algorithm>
#include <iterator>
namespace ripple {
namespace test {
struct EscrowToken_test : public beast::unit_test::suite
{
static STAmount
limitAmount(
jtx::Env const& env,
jtx::Account const& account,
jtx::Account const& gw,
jtx::IOU const& iou)
{
auto const aHigh = account.id() > gw.id();
auto const sle = env.le(keylet::line(account, gw, iou.currency));
if (sle && sle->isFieldPresent(aHigh ? sfLowLimit : sfHighLimit))
return (*sle)[aHigh ? sfLowLimit : sfHighLimit];
return STAmount(iou, 0);
}
static STAmount
lineBalance(
jtx::Env const& env,
jtx::Account const& account,
jtx::Account const& gw,
jtx::IOU const& iou)
{
auto const sle = env.le(keylet::line(account, gw, iou.currency));
if (sle && sle->isFieldPresent(sfBalance))
return (*sle)[sfBalance];
return STAmount(iou, 0);
}
static uint64_t
mptBalance(
jtx::Env const& env,
jtx::Account const& account,
jtx::MPT const& mpt)
{
auto const sle = env.le(keylet::mptoken(mpt.mpt(), account));
if (sle && sle->isFieldPresent(sfMPTAmount))
return (*sle)[sfMPTAmount];
return 0;
}
static uint64_t
mptEscrowed(
jtx::Env const& env,
jtx::Account const& account,
jtx::MPT const& mpt)
{
auto const sle = env.le(keylet::mptoken(mpt.mpt(), account));
if (sle && sle->isFieldPresent(sfEscrowedAmount))
return (*sle)[sfEscrowedAmount];
return 0;
}
static uint64_t
issuerMPTEscrowed(jtx::Env const& env, jtx::MPT const& mpt)
{
auto const sle = env.le(keylet::mptIssuance(mpt.mpt()));
if (sle && sle->isFieldPresent(sfEscrowedAmount))
return (*sle)[sfEscrowedAmount];
return 0;
}
static uint64_t
issuerMPTOutstanding(jtx::Env const& env, jtx::MPT const& mpt)
{
auto const sle = env.le(keylet::mptIssuance(mpt.mpt()));
if (sle && sle->isFieldPresent(sfOutstandingAmount))
return (*sle)[sfOutstandingAmount];
return 0;
}
void
issuerIOUEscrowed(
jtx::Env& env,
jtx::Account const& account,
Currency const& currency,
int const& outstanding,
int const& escrowed)
{
Json::Value params;
params[jss::account] = account.human();
auto jrr = env.rpc("json", "gateway_balances", to_string(params));
std::cout << jrr << std::endl;
auto const result = jrr[jss::result];
auto const actualOutstanding =
result[jss::obligations][to_string(currency)];
BEAST_EXPECT(actualOutstanding == to_string(outstanding));
if (escrowed != 0)
{
auto const actualEscrowed =
result[jss::escrowed][to_string(currency)];
BEAST_EXPECT(actualEscrowed == to_string(escrowed));
}
}
void
testIOUEnablement(FeatureBitset features)
{
testcase("IOU Enablement");
using namespace jtx;
using namespace std::chrono;
for (bool const withTokenEscrow : {false, true})
{
auto const amend =
withTokenEscrow ? features : features - featureTokenEscrow;
Env env{*this, amend};
auto const alice = Account("alice");
auto const bob = Account("bob");
auto const gw = Account{"gateway"};
auto const USD = gw["USD"];
env.fund(XRP(5000), alice, bob, gw);
env(fset(gw, asfAllowTokenLocking));
env.close();
env.trust(USD(10'000), alice, bob);
env.close();
env(pay(gw, alice, USD(5000)));
env(pay(gw, bob, USD(5000)));
env.close();
auto const createResult =
withTokenEscrow ? ter(tesSUCCESS) : ter(temDISABLED);
auto const finishResult =
withTokenEscrow ? ter(tesSUCCESS) : ter(tecNO_TARGET);
auto const seq1 = env.seq(alice);
env(escrow::create(alice, bob, USD(1'000)),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500),
createResult);
env.close();
env(escrow::finish(bob, alice, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500),
finishResult);
env.close();
auto const seq2 = env.seq(alice);
env(escrow::create(alice, bob, USD(1'000)),
escrow::condition(escrow::cb2),
escrow::finish_time(env.now() + 1s),
escrow::cancel_time(env.now() + 2s),
fee(1500),
createResult);
env.close();
env(escrow::cancel(bob, alice, seq2), fee(1500), finishResult);
env.close();
}
}
void
testIOUBalances(FeatureBitset features)
{
testcase("IOU Balances");
using namespace jtx;
using namespace std::chrono;
Env env{*this, features};
auto const alice = Account("alice");
auto const bob = Account("bob");
auto const gw = Account{"gateway"};
auto const USD = gw["USD"];
env.fund(XRP(5000), alice, bob, gw);
env(fset(gw, asfAllowTokenLocking));
env.close();
env.trust(USD(10'000), alice, bob);
env.close();
env(pay(gw, alice, USD(5000)));
env(pay(gw, bob, USD(5000)));
env.close();
auto const seq1 = env.seq(alice);
env(escrow::create(alice, bob, USD(1'000)),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500),
ter(tesSUCCESS));
env.close();
env(escrow::finish(bob, alice, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500),
ter(tesSUCCESS));
env.close();
auto const seq2 = env.seq(alice);
env(escrow::create(alice, bob, USD(1'000)),
escrow::condition(escrow::cb2),
escrow::finish_time(env.now() + 1s),
escrow::cancel_time(env.now() + 2s),
fee(1500),
ter(tesSUCCESS));
env.close();
env(escrow::cancel(bob, alice, seq2), fee(1500), ter(tesSUCCESS));
env.close();
}
void
testIOUMetaAndOwnership(FeatureBitset features)
{
using namespace jtx;
using namespace std::chrono;
auto const alice = Account("alice");
auto const bob = Account("bob");
auto const carol = Account("carol");
auto const gw = Account{"gateway"};
auto const USD = gw["USD"];
{
testcase("IOU Metadata to self");
Env env{*this, features};
env.fund(XRP(5000), alice, bob, carol, gw);
env(fset(gw, asfAllowTokenLocking));
env.close();
env.trust(USD(10'000), alice, bob, carol);
env.close();
env(pay(gw, alice, USD(5000)));
env(pay(gw, bob, USD(5000)));
env(pay(gw, carol, USD(5000)));
env.close();
auto const aseq = env.seq(alice);
auto const bseq = env.seq(bob);
env(escrow::create(alice, alice, USD(1'000)),
escrow::finish_time(env.now() + 1s),
escrow::cancel_time(env.now() + 500s));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
env.close(5s);
auto const aa = env.le(keylet::escrow(alice.id(), aseq));
BEAST_EXPECT(aa);
{
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 2);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), aa) != aod.end());
}
{
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 4);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), aa) != iod.end());
}
env(escrow::create(bob, bob, USD(1'000)),
escrow::finish_time(env.now() + 1s),
escrow::cancel_time(env.now() + 2s));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
env.close(5s);
auto const bb = env.le(keylet::escrow(bob.id(), bseq));
BEAST_EXPECT(bb);
{
ripple::Dir bod(*env.current(), keylet::ownerDir(bob.id()));
BEAST_EXPECT(std::distance(bod.begin(), bod.end()) == 2);
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), bb) != bod.end());
}
{
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 5);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), bb) != iod.end());
}
env.close(5s);
env(escrow::finish(alice, alice, aseq));
{
BEAST_EXPECT(!env.le(keylet::escrow(alice.id(), aseq)));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 1);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), aa) == aod.end());
ripple::Dir bod(*env.current(), keylet::ownerDir(bob.id()));
BEAST_EXPECT(std::distance(bod.begin(), bod.end()) == 2);
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), bb) != bod.end());
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 4);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), bb) != iod.end());
}
env.close(5s);
env(escrow::cancel(bob, bob, bseq));
{
BEAST_EXPECT(!env.le(keylet::escrow(bob.id(), bseq)));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
ripple::Dir bod(*env.current(), keylet::ownerDir(bob.id()));
BEAST_EXPECT(std::distance(bod.begin(), bod.end()) == 1);
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), bb) == bod.end());
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 3);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), bb) == iod.end());
}
}
{
testcase("IOU Metadata to other");
Env env{*this, features};
env.fund(XRP(5000), alice, bob, carol, gw);
env(fset(gw, asfAllowTokenLocking));
env.close();
env.trust(USD(10'000), alice, bob, carol);
env.close();
env(pay(gw, alice, USD(5000)));
env(pay(gw, bob, USD(5000)));
env(pay(gw, carol, USD(5000)));
env.close();
auto const aseq = env.seq(alice);
auto const bseq = env.seq(bob);
env(escrow::create(alice, bob, USD(1'000)),
escrow::finish_time(env.now() + 1s));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
env.close(5s);
env(escrow::create(bob, carol, USD(1'000)),
escrow::finish_time(env.now() + 1s),
escrow::cancel_time(env.now() + 2s));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
env.close(5s);
auto const ab = env.le(keylet::escrow(alice.id(), aseq));
BEAST_EXPECT(ab);
auto const bc = env.le(keylet::escrow(bob.id(), bseq));
BEAST_EXPECT(bc);
{
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 2);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), ab) != aod.end());
ripple::Dir bod(*env.current(), keylet::ownerDir(bob.id()));
BEAST_EXPECT(std::distance(bod.begin(), bod.end()) == 3);
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), ab) != bod.end());
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), bc) != bod.end());
ripple::Dir cod(*env.current(), keylet::ownerDir(carol.id()));
BEAST_EXPECT(std::distance(cod.begin(), cod.end()) == 2);
BEAST_EXPECT(
std::find(cod.begin(), cod.end(), bc) != cod.end());
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 5);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), ab) != iod.end());
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), bc) != iod.end());
}
env.close(5s);
env(escrow::finish(alice, alice, aseq));
{
BEAST_EXPECT(!env.le(keylet::escrow(alice.id(), aseq)));
BEAST_EXPECT(env.le(keylet::escrow(bob.id(), bseq)));
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 1);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), ab) == aod.end());
ripple::Dir bod(*env.current(), keylet::ownerDir(bob.id()));
BEAST_EXPECT(std::distance(bod.begin(), bod.end()) == 2);
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), ab) == bod.end());
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), bc) != bod.end());
ripple::Dir cod(*env.current(), keylet::ownerDir(carol.id()));
BEAST_EXPECT(std::distance(cod.begin(), cod.end()) == 2);
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 4);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), ab) == iod.end());
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), bc) != iod.end());
}
env.close(5s);
env(escrow::cancel(bob, bob, bseq));
{
BEAST_EXPECT(!env.le(keylet::escrow(alice.id(), aseq)));
BEAST_EXPECT(!env.le(keylet::escrow(bob.id(), bseq)));
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 1);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), ab) == aod.end());
ripple::Dir bod(*env.current(), keylet::ownerDir(bob.id()));
BEAST_EXPECT(std::distance(bod.begin(), bod.end()) == 1);
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), ab) == bod.end());
BEAST_EXPECT(
std::find(bod.begin(), bod.end(), bc) == bod.end());
ripple::Dir cod(*env.current(), keylet::ownerDir(carol.id()));
BEAST_EXPECT(std::distance(cod.begin(), cod.end()) == 1);
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 3);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), ab) == iod.end());
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), bc) == iod.end());
}
}
{
testcase("IOU Metadata to issuer");
Env env{*this, features};
env.fund(XRP(5000), alice, carol, gw);
env(fset(gw, asfAllowTokenLocking));
env.close();
env.trust(USD(10'000), alice, carol);
env.close();
env(pay(gw, alice, USD(5000)));
env(pay(gw, carol, USD(5000)));
env.close();
auto const aseq = env.seq(alice);
auto const gseq = env.seq(gw);
env(escrow::create(alice, gw, USD(1'000)),
escrow::finish_time(env.now() + 1s));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
env.close(5s);
env(escrow::create(gw, carol, USD(1'000)),
escrow::finish_time(env.now() + 1s),
escrow::cancel_time(env.now() + 2s));
BEAST_EXPECT(
(*env.meta())[sfTransactionResult] ==
static_cast<std::uint8_t>(tesSUCCESS));
env.close(5s);
auto const ag = env.le(keylet::escrow(alice.id(), aseq));
BEAST_EXPECT(ag);
auto const gc = env.le(keylet::escrow(gw.id(), gseq));
BEAST_EXPECT(gc);
{
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 2);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), ag) != aod.end());
ripple::Dir cod(*env.current(), keylet::ownerDir(carol.id()));
BEAST_EXPECT(std::distance(cod.begin(), cod.end()) == 2);
BEAST_EXPECT(
std::find(cod.begin(), cod.end(), gc) != cod.end());
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 4);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), ag) != iod.end());
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), gc) != iod.end());
}
env.close(5s);
env(escrow::finish(alice, alice, aseq));
{
BEAST_EXPECT(!env.le(keylet::escrow(alice.id(), aseq)));
BEAST_EXPECT(env.le(keylet::escrow(gw.id(), gseq)));
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 1);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), ag) == aod.end());
ripple::Dir cod(*env.current(), keylet::ownerDir(carol.id()));
BEAST_EXPECT(std::distance(cod.begin(), cod.end()) == 2);
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 3);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), ag) == iod.end());
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), gc) != iod.end());
}
env.close(5s);
env(escrow::cancel(gw, gw, gseq));
{
BEAST_EXPECT(!env.le(keylet::escrow(alice.id(), aseq)));
BEAST_EXPECT(!env.le(keylet::escrow(gw.id(), gseq)));
ripple::Dir aod(*env.current(), keylet::ownerDir(alice.id()));
BEAST_EXPECT(std::distance(aod.begin(), aod.end()) == 1);
BEAST_EXPECT(
std::find(aod.begin(), aod.end(), ag) == aod.end());
ripple::Dir cod(*env.current(), keylet::ownerDir(carol.id()));
BEAST_EXPECT(std::distance(cod.begin(), cod.end()) == 1);
ripple::Dir iod(*env.current(), keylet::ownerDir(gw.id()));
BEAST_EXPECT(std::distance(iod.begin(), iod.end()) == 2);
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), ag) == iod.end());
BEAST_EXPECT(
std::find(iod.begin(), iod.end(), gc) == iod.end());
}
}
}
void
testIOURippleState(FeatureBitset features)
{
testcase("IOU RippleState");
using namespace test::jtx;
using namespace std::literals;
struct TestAccountData
{
Account src;
Account dst;
Account gw;
bool hasTrustline;
bool negative;
};
std::array<TestAccountData, 8> tests = {{
// src > dst && src > issuer && dst no trustline
{Account("alice2"), Account("bob0"), Account{"gw0"}, false, true},
// src < dst && src < issuer && dst no trustline
{Account("carol0"), Account("dan1"), Account{"gw1"}, false, false},
// dst > src && dst > issuer && dst no trustline
{Account("dan1"), Account("alice2"), Account{"gw0"}, false, true},
// dst < src && dst < issuer && dst no trustline
{Account("bob0"), Account("carol0"), Account{"gw1"}, false, false},
// src > dst && src > issuer && dst has trustline
{Account("alice2"), Account("bob0"), Account{"gw0"}, true, true},
// src < dst && src < issuer && dst has trustline
{Account("carol0"), Account("dan1"), Account{"gw1"}, true, false},
// dst > src && dst > issuer && dst has trustline
{Account("dan1"), Account("alice2"), Account{"gw0"}, true, true},
// dst < src && dst < issuer && dst has trustline
{Account("bob0"), Account("carol0"), Account{"gw1"}, true, false},
}};
for (auto const& t : tests)
{
Env env{*this, features};
auto const USD = t.gw["USD"];
env.fund(XRP(5000), t.src, t.dst, t.gw);
env(fset(t.gw, asfAllowTokenLocking));
env.close();
if (t.hasTrustline)
env.trust(USD(100'000), t.src, t.dst);
else
env.trust(USD(100'000), t.src);
env.close();
env(pay(t.gw, t.src, USD(10'000)));
if (t.hasTrustline)
env(pay(t.gw, t.dst, USD(10'000)));
env.close();
// src can create escrow
auto const seq1 = env.seq(t.src);
auto const delta = USD(1'000);
env(escrow::create(t.src, t.dst, delta),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
// dst can finish escrow
auto const preSrc = lineBalance(env, t.src, t.gw, USD);
auto const preDst = lineBalance(env, t.dst, t.gw, USD);
env(escrow::finish(t.dst, t.src, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
BEAST_EXPECT(lineBalance(env, t.src, t.gw, USD) == preSrc);
BEAST_EXPECT(
lineBalance(env, t.dst, t.gw, USD) ==
(t.negative ? (preDst - delta) : (preDst + delta)));
}
}
void
testIOUGateway(FeatureBitset features)
{
testcase("IOU Gateway");
using namespace test::jtx;
using namespace std::literals;
struct TestAccountData
{
Account src;
Account dst;
bool hasTrustline;
bool negative;
};
std::array<TestAccountData, 8> gwSrcTests = {{
// src > dst && src > issuer && dst no trustline
{Account("gw0"), Account{"alice2"}, false, true},
// // src < dst && src < issuer && dst no trustline
{Account("gw1"), Account{"carol0"}, false, false},
// // // // // dst > src && dst > issuer && dst no trustline
{Account("gw0"), Account{"dan1"}, false, true},
// // // // // dst < src && dst < issuer && dst no trustline
{Account("gw1"), Account{"bob0"}, false, false},
// // // // src > dst && src > issuer && dst has trustline
{Account("gw0"), Account{"alice2"}, true, true},
// // // // src < dst && src < issuer && dst has trustline
{Account("gw1"), Account{"carol0"}, true, false},
// // // // dst > src && dst > issuer && dst has trustline
{Account("gw0"), Account{"dan1"}, true, true},
// // // // dst < src && dst < issuer && dst has trustline
{Account("gw1"), Account{"bob0"}, true, false},
}};
for (auto const& t : gwSrcTests)
{
Env env{*this, features};
auto const USD = t.src["USD"];
env.fund(XRP(5000), t.dst, t.src);
env(fset(t.src, asfAllowTokenLocking));
env.close();
if (t.hasTrustline)
env.trust(USD(100'000), t.dst);
env.close();
if (t.hasTrustline)
env(pay(t.src, t.dst, USD(10'000)));
env.close();
// issuer can create escrow
auto const seq1 = env.seq(t.src);
auto const preDst = lineBalance(env, t.dst, t.src, USD);
env(escrow::create(t.src, t.dst, USD(1'000)),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
// src can finish escrow, no dest trustline
env(escrow::finish(t.dst, t.src, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
auto const preAmount = t.hasTrustline ? 10'000 : 0;
BEAST_EXPECT(
preDst == (t.negative ? -USD(preAmount) : USD(preAmount)));
auto const postAmount = t.hasTrustline ? 11000 : 1'000;
BEAST_EXPECT(
lineBalance(env, t.dst, t.src, USD) ==
(t.negative ? -USD(postAmount) : USD(postAmount)));
BEAST_EXPECT(lineBalance(env, t.src, t.src, USD) == USD(0));
}
std::array<TestAccountData, 4> gwDstTests = {{
// // // // src > dst && src > issuer && dst has trustline
{Account("alice2"), Account{"gw0"}, true, true},
// // // // src < dst && src < issuer && dst has trustline
{Account("carol0"), Account{"gw1"}, true, false},
// // // // dst > src && dst > issuer && dst has trustline
{Account("dan1"), Account{"gw0"}, true, true},
// // // // dst < src && dst < issuer && dst has trustline
{Account("bob0"), Account{"gw1"}, true, false},
}};
for (auto const& t : gwDstTests)
{
Env env{*this, features};
auto const USD = t.dst["USD"];
env.fund(XRP(5000), t.dst, t.src);
env(fset(t.dst, asfAllowTokenLocking));
env.close();
env.trust(USD(100'000), t.src);
env.close();
env(pay(t.dst, t.src, USD(10'000)));
env.close();
// issuer can receive escrow
auto const seq1 = env.seq(t.src);
auto const preSrc = lineBalance(env, t.src, t.dst, USD);
env(escrow::create(t.src, t.dst, USD(1'000)),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
// issuer can finish escrow, no dest trustline
env(escrow::finish(t.dst, t.src, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
auto const preAmount = 10'000;
BEAST_EXPECT(
preSrc == (t.negative ? -USD(preAmount) : USD(preAmount)));
auto const postAmount = 9000;
BEAST_EXPECT(
lineBalance(env, t.src, t.dst, USD) ==
(t.negative ? -USD(postAmount) : USD(postAmount)));
BEAST_EXPECT(lineBalance(env, t.dst, t.dst, USD) == USD(0));
}
// issuer is source and destination
{
auto const gw = Account{"gateway"};
auto const USD = gw["USD"];
Env env{*this, features};
env.fund(XRP(5000), gw);
env(fset(gw, asfAllowTokenLocking));
env.close();
// issuer can receive escrow
auto const seq1 = env.seq(gw);
env(escrow::create(gw, gw, USD(1'000)),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
// issuer can finish escrow
env(escrow::finish(gw, gw, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
}
}
void
testIOULockedRate(FeatureBitset features)
{
testcase("IOU Locked Rate");
using namespace test::jtx;
using namespace std::literals;
auto const alice = Account("alice");
auto const bob = Account("bob");
auto const carol = Account("carol");
auto const gw = Account{"gateway"};
auto const USD = gw["USD"];
// test locked rate
{
Env env{*this, features};
env.fund(XRP(10'000), alice, bob, gw);
env(fset(gw, asfAllowTokenLocking));
env(rate(gw, 1.25));
env.close();
env.trust(USD(100'000), alice);
env.trust(USD(100'000), bob);
env.close();
env(pay(gw, alice, USD(10'000)));
env(pay(gw, bob, USD(10'000)));
env.close();
// alice can create escrow w/ xfer rate
auto const preAlice = env.balance(alice, USD);
auto const seq1 = env.seq(alice);
auto const delta = USD(125);
env(escrow::create(alice, bob, delta),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
auto const transferRate = escrow::rate(env, alice, seq1);
BEAST_EXPECT(
transferRate.value == std::uint32_t(1'000'000'000 * 1.25));
// bob can finish escrow
env(escrow::finish(bob, alice, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
BEAST_EXPECT(env.balance(alice, USD) == preAlice - delta);
BEAST_EXPECT(env.balance(bob, USD) == USD(10'100));
}
// test rate change - higher
{
Env env{*this, features};
env.fund(XRP(10'000), alice, bob, gw);
env(fset(gw, asfAllowTokenLocking));
env(rate(gw, 1.25));
env.close();
env.trust(USD(100'000), alice);
env.trust(USD(100'000), bob);
env.close();
env(pay(gw, alice, USD(10'000)));
env(pay(gw, bob, USD(10'000)));
env.close();
// alice can create escrow w/ xfer rate
auto const preAlice = env.balance(alice, USD);
auto const seq1 = env.seq(alice);
auto const delta = USD(125);
env(escrow::create(alice, bob, delta),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
auto transferRate = escrow::rate(env, alice, seq1);
BEAST_EXPECT(
transferRate.value == std::uint32_t(1'000'000'000 * 1.25));
// issuer changes rate higher
env(rate(gw, 1.26));
env.close();
// bob can finish escrow - rate unchanged
env(escrow::finish(bob, alice, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
BEAST_EXPECT(env.balance(alice, USD) == preAlice - delta);
BEAST_EXPECT(env.balance(bob, USD) == USD(10'100));
}
// test rate change - lower
{
Env env{*this, features};
env.fund(XRP(10'000), alice, bob, gw);
env(fset(gw, asfAllowTokenLocking));
env(rate(gw, 1.25));
env.close();
env.trust(USD(100'000), alice);
env.trust(USD(100'000), bob);
env.close();
env(pay(gw, alice, USD(10'000)));
env(pay(gw, bob, USD(10'000)));
env.close();
// alice can create escrow w/ xfer rate
auto const preAlice = env.balance(alice, USD);
auto const seq1 = env.seq(alice);
auto const delta = USD(125);
env(escrow::create(alice, bob, delta),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
auto transferRate = escrow::rate(env, alice, seq1);
BEAST_EXPECT(
transferRate.value == std::uint32_t(1'000'000'000 * 1.25));
// issuer changes rate lower
env(rate(gw, 1.00));
env.close();
// bob can finish escrow - rate changed
env(escrow::finish(bob, alice, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
BEAST_EXPECT(env.balance(alice, USD) == preAlice - delta);
BEAST_EXPECT(env.balance(bob, USD) == USD(10125));
}
// test issuer doesnt pay own rate
{
Env env{*this, features};
env.fund(XRP(10'000), alice, bob, gw);
env(fset(gw, asfAllowTokenLocking));
env(rate(gw, 1.25));
env.close();
env.trust(USD(100'000), alice);
env.trust(USD(100'000), bob);
env.close();
env(pay(gw, alice, USD(10'000)));
env(pay(gw, bob, USD(10'000)));
env.close();
// issuer with rate can create escrow
auto const preAlice = env.balance(alice, USD);
auto const seq1 = env.seq(gw);
auto const delta = USD(125);
env(escrow::create(gw, alice, delta),
escrow::condition(escrow::cb1),
escrow::finish_time(env.now() + 1s),
fee(1500));
env.close();
auto transferRate = escrow::rate(env, gw, seq1);
BEAST_EXPECT(
transferRate.value == std::uint32_t(1'000'000'000 * 1.25));
// alice can finish escrow - no rate charged
env(escrow::finish(alice, gw, seq1),
escrow::condition(escrow::cb1),
escrow::fulfillment(escrow::fb1),
fee(1500));
env.close();
BEAST_EXPECT(env.balance(alice, USD) == preAlice + delta);
BEAST_EXPECT(env.balance(alice, USD) == USD(10'125));
}
}
void
testIOULimitAmount(FeatureBitset features)
{
testcase("IOU Trustline Limit");
using namespace test::jtx;
using namespace std::literals;
auto const alice = Account("alice");
auto const bob = Account("bob");
auto const gw = Account{"gateway"};
auto const USD = gw["USD"];
// test LimitAmount
{
Env env{*this, features};
env.fund(XRP(1'000), alice, bob, gw);
env(fset(gw, asfAllowTokenLocking));
env.close();
env.trust(USD(10'000), alice, bob);
env.close();
env(pay(gw, alice, USD(1'000)));
env(pay(gw, bob, USD(1'000)));