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242ce3e9e4280aa7f9e6292062117c8ccd8861c8
rippled/src/test/app/Path_test.cpp
Mayukha Vadari 242ce3e9e4 refactor: Fix sfGeneric and sfInvalid field names (#7300)
2026-05-20 19:47:59 +00:00

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#include <test/jtx/AMM.h>
#include <test/jtx/AMMTest.h>
#include <test/jtx/Account.h>
#include <test/jtx/Env.h>
#include <test/jtx/TestHelpers.h>
#include <test/jtx/amount.h>
#include <test/jtx/balance.h>
#include <test/jtx/domain.h>
#include <test/jtx/envconfig.h>
#include <test/jtx/jtx_json.h>
#include <test/jtx/offer.h>
#include <test/jtx/owners.h> // IWYU pragma: keep
#include <test/jtx/paths.h>
#include <test/jtx/pay.h>
#include <test/jtx/permissioned_dex.h>
#include <test/jtx/rate.h>
#include <test/jtx/sendmax.h>
#include <test/jtx/ter.h>
#include <test/jtx/trust.h>
#include <test/jtx/txflags.h>
#include <xrpld/core/Config.h>
#include <xrpld/rpc/RPCHandler.h>
#include <xrpld/rpc/Role.h>
#include <xrpld/rpc/detail/Tuning.h>
#include <xrpl/basics/base_uint.h>
#include <xrpl/beast/unit_test/suite.h>
#include <xrpl/core/Job.h>
#include <xrpl/core/JobQueue.h>
#include <xrpl/json/json_reader.h>
#include <xrpl/json/json_value.h>
#include <xrpl/protocol/AccountID.h>
#include <xrpl/protocol/ApiVersion.h>
#include <xrpl/protocol/Indexes.h>
#include <xrpl/protocol/Issue.h>
#include <xrpl/protocol/SField.h>
#include <xrpl/protocol/STAmount.h>
#include <xrpl/protocol/STParsedJSON.h>
#include <xrpl/protocol/STPathSet.h>
#include <xrpl/protocol/TER.h>
#include <xrpl/protocol/TxFlags.h>
#include <xrpl/protocol/UintTypes.h>
#include <xrpl/protocol/jss.h>
#include <xrpl/resource/Charge.h>
#include <xrpl/resource/Consumer.h>
#include <xrpl/resource/Fees.h>
#include <chrono>
#include <condition_variable>
#include <cstdint>
#include <memory>
#include <mutex>
#include <optional>
#include <string>
#include <tuple>
#include <utility>
namespace xrpl::test {
//------------------------------------------------------------------------------
json::Value
rpf(jtx::Account const& src, jtx::Account const& dst, std::uint32_t numSrc)
{
json::Value jv = json::ValueType::Object;
jv[jss::command] = "ripple_path_find";
jv[jss::source_account] = toBase58(src);
if (numSrc > 0)
{
auto& sc = (jv[jss::source_currencies] = json::ValueType::Array);
json::Value j = json::ValueType::Object;
while ((numSrc--) != 0u)
{
j[jss::currency] = std::to_string(numSrc + 100);
sc.append(j);
}
}
auto const d = toBase58(dst);
jv[jss::destination_account] = d;
json::Value& j = (jv[jss::destination_amount] = json::ValueType::Object);
j[jss::currency] = "USD";
j[jss::value] = "0.01";
j[jss::issuer] = d;
return jv;
}
//------------------------------------------------------------------------------
class Path_test : public beast::unit_test::Suite
{
jtx::Env
pathTestEnv()
{
// These tests were originally written with search parameters that are
// different from the current defaults. This function creates an env
// with the search parameters that the tests were written for.
using namespace jtx;
return Env(*this, envconfig([](std::unique_ptr<Config> cfg) {
cfg->PATH_SEARCH_OLD = 7;
cfg->PATH_SEARCH = 7;
cfg->PATH_SEARCH_MAX = 10;
return cfg;
}));
}
public:
class Gate
{
private:
std::condition_variable cv_;
std::mutex mutex_;
bool signaled_ = false;
public:
// Thread safe, blocks until signaled or period expires.
// Returns `true` if signaled.
template <class Rep, class Period>
bool
waitFor(std::chrono::duration<Rep, Period> const& relTime)
{
std::unique_lock<std::mutex> lk(mutex_);
auto b = cv_.wait_for(lk, relTime, [this] { return signaled_; });
signaled_ = false;
return b;
}
void
signal()
{
std::scoped_lock const lk(mutex_);
signaled_ = true;
cv_.notify_all();
}
};
auto
findPathsRequest(
jtx::Env& env,
jtx::Account const& src,
jtx::Account const& dst,
STAmount const& saDstAmount,
std::optional<STAmount> const& saSendMax = std::nullopt,
std::optional<Currency> const& saSrcCurrency = std::nullopt,
std::optional<uint256> const& domain = std::nullopt)
{
using namespace jtx;
auto& app = env.app();
Resource::Charge loadType = Resource::kFeeReferenceRpc;
Resource::Consumer c;
RPC::JsonContext context{
{.j = env.journal,
.app = app,
.loadType = loadType,
.netOps = app.getOPs(),
.ledgerMaster = app.getLedgerMaster(),
.consumer = c,
.role = Role::USER,
.coro = {},
.infoSub = {},
.apiVersion = RPC::kApiVersionIfUnspecified},
{},
{}};
json::Value params = json::ValueType::Object;
params[jss::command] = "ripple_path_find";
params[jss::source_account] = toBase58(src);
params[jss::destination_account] = toBase58(dst);
params[jss::destination_amount] = saDstAmount.getJson(JsonOptions::Values::None);
if (saSendMax)
params[jss::send_max] = saSendMax->getJson(JsonOptions::Values::None);
if (saSrcCurrency)
{
auto& sc = params[jss::source_currencies] = json::ValueType::Array;
json::Value j = json::ValueType::Object;
j[jss::currency] = to_string(saSrcCurrency.value());
sc.append(j);
}
if (domain)
params[jss::domain] = to_string(*domain);
json::Value result;
Gate g;
app.getJobQueue().postCoro(JtClient, "RPC-Client", [&](auto const& coro) {
context.params = std::move(params);
context.coro = coro;
RPC::doCommand(context, result);
g.signal();
});
using namespace std::chrono_literals;
BEAST_EXPECT(g.waitFor(5s));
BEAST_EXPECT(!result.isMember(jss::error));
return result;
}
std::tuple<STPathSet, STAmount, STAmount>
findPaths(
jtx::Env& env,
jtx::Account const& src,
jtx::Account const& dst,
STAmount const& saDstAmount,
std::optional<STAmount> const& saSendMax = std::nullopt,
std::optional<Currency> const& saSrcCurrency = std::nullopt,
std::optional<uint256> const& domain = std::nullopt)
{
json::Value result =
findPathsRequest(env, src, dst, saDstAmount, saSendMax, saSrcCurrency, domain);
BEAST_EXPECT(!result.isMember(jss::error));
STAmount da;
if (result.isMember(jss::destination_amount))
da = amountFromJson(sfGeneric, result[jss::destination_amount]);
STAmount sa;
STPathSet paths;
if (result.isMember(jss::alternatives))
{
auto const& alts = result[jss::alternatives];
if (alts.size() > 0)
{
auto const& path = alts[0u];
if (path.isMember(jss::source_amount))
sa = amountFromJson(sfGeneric, path[jss::source_amount]);
if (path.isMember(jss::destination_amount))
da = amountFromJson(sfGeneric, path[jss::destination_amount]);
if (path.isMember(jss::paths_computed))
{
json::Value p;
p["Paths"] = path[jss::paths_computed];
STParsedJSONObject po("generic", p);
// NOLINTNEXTLINE(bugprone-unchecked-optional-access)
paths = po.object->getFieldPathSet(sfPaths);
}
}
}
return std::make_tuple(std::move(paths), std::move(sa), std::move(da));
}
void
sourceCurrenciesLimit()
{
testcase("source currency limits");
using namespace std::chrono_literals;
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
env.fund(XRP(10000), "alice", "bob", gw);
env.close();
env.trust(gw["USD"](100), "alice", "bob");
env.close();
auto& app = env.app();
Resource::Charge loadType = Resource::kFeeReferenceRpc;
Resource::Consumer c;
RPC::JsonContext context{
{.j = env.journal,
.app = app,
.loadType = loadType,
.netOps = app.getOPs(),
.ledgerMaster = app.getLedgerMaster(),
.consumer = c,
.role = Role::USER,
.coro = {},
.infoSub = {},
.apiVersion = RPC::kApiVersionIfUnspecified},
{},
{}};
json::Value result;
Gate g;
// Test RPC::Tuning::max_src_cur source currencies.
app.getJobQueue().postCoro(JtClient, "RPC-Client", [&](auto const& coro) {
context.params = rpf(Account("alice"), Account("bob"), RPC::Tuning::kMaxSrcCur);
context.coro = coro;
RPC::doCommand(context, result);
g.signal();
});
BEAST_EXPECT(g.waitFor(5s));
BEAST_EXPECT(!result.isMember(jss::error));
// Test more than RPC::Tuning::max_src_cur source currencies.
app.getJobQueue().postCoro(JtClient, "RPC-Client", [&](auto const& coro) {
context.params = rpf(Account("alice"), Account("bob"), RPC::Tuning::kMaxSrcCur + 1);
context.coro = coro;
RPC::doCommand(context, result);
g.signal();
});
BEAST_EXPECT(g.waitFor(5s));
BEAST_EXPECT(result.isMember(jss::error));
// Test RPC::Tuning::max_auto_src_cur source currencies.
for (auto i = 0; i < (RPC::Tuning::kMaxAutoSrcCur - 1); ++i)
env.trust(Account("alice")[std::to_string(i + 100)](100), "bob");
app.getJobQueue().postCoro(JtClient, "RPC-Client", [&](auto const& coro) {
context.params = rpf(Account("alice"), Account("bob"), 0);
context.coro = coro;
RPC::doCommand(context, result);
g.signal();
});
BEAST_EXPECT(g.waitFor(5s));
BEAST_EXPECT(!result.isMember(jss::error));
// Test more than RPC::Tuning::max_auto_src_cur source currencies.
env.trust(Account("alice")["AUD"](100), "bob");
app.getJobQueue().postCoro(JtClient, "RPC-Client", [&](auto const& coro) {
context.params = rpf(Account("alice"), Account("bob"), 0);
context.coro = coro;
RPC::doCommand(context, result);
g.signal();
});
BEAST_EXPECT(g.waitFor(5s));
BEAST_EXPECT(result.isMember(jss::error));
}
void
noDirectPathNoIntermediaryNoAlternatives()
{
testcase("no direct path no intermediary no alternatives");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob");
env.close();
auto const result = findPaths(env, "alice", "bob", Account("bob")["USD"](5));
BEAST_EXPECT(std::get<0>(result).empty());
}
void
directPathNoIntermediary()
{
testcase("direct path no intermediary");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob");
env.close();
env.trust(Account("alice")["USD"](700), "bob");
STPathSet st;
STAmount sa;
std::tie(st, sa, std::ignore) = findPaths(env, "alice", "bob", Account("bob")["USD"](5));
BEAST_EXPECT(st.empty());
BEAST_EXPECT(equal(sa, Account("alice")["USD"](5)));
}
void
paymentAutoPathFind()
{
testcase("payment auto path find");
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const usd = gw["USD"];
env.fund(XRP(10000), "alice", "bob", gw);
env.close();
env.trust(usd(600), "alice");
env.trust(usd(700), "bob");
env(pay(gw, "alice", usd(70)));
env(pay("alice", "bob", usd(24)));
env.require(Balance("alice", usd(46)));
env.require(Balance(gw, Account("alice")["USD"](-46)));
env.require(Balance("bob", usd(24)));
env.require(Balance(gw, Account("bob")["USD"](-24)));
}
void
pathFind(bool const domainEnabled)
{
testcase(std::string("path find") + (domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const usd = gw["USD"];
env.fund(XRP(10000), "alice", "bob", gw);
env.close();
env.trust(usd(600), "alice");
env.trust(usd(700), "bob");
env(pay(gw, "alice", usd(70)));
env(pay(gw, "bob", usd(50)));
std::optional<uint256> domainID;
if (domainEnabled)
domainID = setupDomain(env, {"alice", "bob", gw});
STPathSet st;
STAmount sa;
std::tie(st, sa, std::ignore) = findPaths(
env, "alice", "bob", Account("bob")["USD"](5), std::nullopt, std::nullopt, domainID);
BEAST_EXPECT(same(st, stpath("gateway")));
BEAST_EXPECT(equal(sa, Account("alice")["USD"](5)));
}
void
xrpToXrp(bool const domainEnabled)
{
using namespace jtx;
testcase(std::string("XRP to XRP") + (domainEnabled ? " w/ " : " w/o ") + "domain");
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob");
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
domainID = setupDomain(env, {"alice", "bob"});
auto const result =
findPaths(env, "alice", "bob", XRP(5), std::nullopt, std::nullopt, domainID);
BEAST_EXPECT(std::get<0>(result).empty());
}
void
pathFindConsumeAll(bool const domainEnabled)
{
testcase(
std::string("path find consume all") + (domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
{
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob", "carol", "dan", "edward");
env.close();
env.trust(Account("alice")["USD"](10), "bob");
env.trust(Account("bob")["USD"](10), "carol");
env.trust(Account("carol")["USD"](10), "edward");
env.trust(Account("alice")["USD"](100), "dan");
env.trust(Account("dan")["USD"](100), "edward");
std::optional<uint256> domainID;
if (domainEnabled)
domainID = setupDomain(env, {"alice", "bob", "carol", "dan", "edward"});
STPathSet st;
STAmount sa;
STAmount da;
std::tie(st, sa, da) = findPaths(
env,
"alice",
"edward",
Account("edward")["USD"](-1),
std::nullopt,
std::nullopt,
domainID);
BEAST_EXPECT(same(st, stpath("dan"), stpath("bob", "carol")));
BEAST_EXPECT(equal(sa, Account("alice")["USD"](110)));
BEAST_EXPECT(equal(da, Account("edward")["USD"](110)));
}
{
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const usd = gw["USD"];
env.fund(XRP(10000), "alice", "bob", "carol", gw);
env.close();
env.trust(usd(100), "bob", "carol");
env.close();
env(pay(gw, "carol", usd(100)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {"alice", "bob", "carol", "gateway"});
env(offer("carol", XRP(100), usd(100)), Domain(*domainID));
}
else
{
env(offer("carol", XRP(100), usd(100)));
}
env.close();
STPathSet st;
STAmount sa;
STAmount da;
std::tie(st, sa, da) = findPaths(
env,
"alice",
"bob",
Account("bob")["AUD"](-1),
std::optional<STAmount>(XRP(1000000)),
std::nullopt,
domainID);
BEAST_EXPECT(st.empty());
std::tie(st, sa, da) = findPaths(
env,
"alice",
"bob",
Account("bob")["USD"](-1),
std::optional<STAmount>(XRP(1000000)),
std::nullopt,
domainID);
BEAST_EXPECT(sa == XRP(100));
BEAST_EXPECT(equal(da, Account("bob")["USD"](100)));
// if domain is used, finding path in the open offerbook will return
// empty result
if (domainEnabled)
{
std::tie(st, sa, da) = findPaths(
env,
"alice",
"bob",
Account("bob")["USD"](-1),
std::optional<STAmount>(XRP(1000000)),
std::nullopt,
std::nullopt); // not specifying a domain
BEAST_EXPECT(st.empty());
}
}
}
void
alternativePathConsumeBoth(bool const domainEnabled)
{
testcase(
std::string("alternative path consume both") + (domainEnabled ? " w/ " : " w/o ") +
"domain");
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const usd = gw["USD"];
auto const gw2 = Account("gateway2");
auto const gw2Usd = gw2["USD"];
env.fund(XRP(10000), "alice", "bob", gw, gw2);
env.close();
env.trust(usd(600), "alice");
env.trust(gw2Usd(800), "alice");
env.trust(usd(700), "bob");
env.trust(gw2Usd(900), "bob");
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {"alice", "bob", "gateway", "gateway2"});
env(pay(gw, "alice", usd(70)), Domain(*domainID));
env(pay(gw2, "alice", gw2Usd(70)), Domain(*domainID));
env(pay("alice", "bob", Account("bob")["USD"](140)),
Paths(Account("alice")["USD"]),
Domain(*domainID));
}
else
{
env(pay(gw, "alice", usd(70)));
env(pay(gw2, "alice", gw2Usd(70)));
env(pay("alice", "bob", Account("bob")["USD"](140)), Paths(Account("alice")["USD"]));
}
env.require(Balance("alice", usd(0)));
env.require(Balance("alice", gw2Usd(0)));
env.require(Balance("bob", usd(70)));
env.require(Balance("bob", gw2Usd(70)));
env.require(Balance(gw, Account("alice")["USD"](0)));
env.require(Balance(gw, Account("bob")["USD"](-70)));
env.require(Balance(gw2, Account("alice")["USD"](0)));
env.require(Balance(gw2, Account("bob")["USD"](-70)));
}
void
alternativePathsConsumeBestTransfer(bool const domainEnabled)
{
testcase(
std::string("alternative paths consume best transfer") +
(domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const usd = gw["USD"];
auto const gw2 = Account("gateway2");
auto const gw2Usd = gw2["USD"];
env.fund(XRP(10000), "alice", "bob", gw, gw2);
env.close();
env(rate(gw2, 1.1));
env.trust(usd(600), "alice");
env.trust(gw2Usd(800), "alice");
env.trust(usd(700), "bob");
env.trust(gw2Usd(900), "bob");
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {"alice", "bob", "gateway", "gateway2"});
env(pay(gw, "alice", usd(70)), Domain(*domainID));
env(pay(gw2, "alice", gw2Usd(70)), Domain(*domainID));
env(pay("alice", "bob", usd(70)), Domain(*domainID));
}
else
{
env(pay(gw, "alice", usd(70)));
env(pay(gw2, "alice", gw2Usd(70)));
env(pay("alice", "bob", usd(70)));
}
env.require(Balance("alice", usd(0)));
env.require(Balance("alice", gw2Usd(70)));
env.require(Balance("bob", usd(70)));
env.require(Balance("bob", gw2Usd(0)));
env.require(Balance(gw, Account("alice")["USD"](0)));
env.require(Balance(gw, Account("bob")["USD"](-70)));
env.require(Balance(gw2, Account("alice")["USD"](-70)));
env.require(Balance(gw2, Account("bob")["USD"](0)));
}
void
alternativePathsConsumeBestTransferFirst()
{
testcase("alternative paths - consume best transfer first");
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const usd = gw["USD"];
auto const gw2 = Account("gateway2");
auto const gw2Usd = gw2["USD"];
env.fund(XRP(10000), "alice", "bob", gw, gw2);
env.close();
env(rate(gw2, 1.1));
env.trust(usd(600), "alice");
env.trust(gw2Usd(800), "alice");
env.trust(usd(700), "bob");
env.trust(gw2Usd(900), "bob");
env(pay(gw, "alice", usd(70)));
env(pay(gw2, "alice", gw2Usd(70)));
env(pay("alice", "bob", Account("bob")["USD"](77)),
Sendmax(Account("alice")["USD"](100)),
Paths(Account("alice")["USD"]));
env.require(Balance("alice", usd(0)));
env.require(Balance("alice", gw2Usd(62.3)));
env.require(Balance("bob", usd(70)));
env.require(Balance("bob", gw2Usd(7)));
env.require(Balance(gw, Account("alice")["USD"](0)));
env.require(Balance(gw, Account("bob")["USD"](-70)));
env.require(Balance(gw2, Account("alice")["USD"](-62.3)));
env.require(Balance(gw2, Account("bob")["USD"](-7)));
}
void
alternativePathsLimitReturnedPathsToBestQuality(bool const domainEnabled)
{
testcase(
std::string("alternative paths - limit returned paths to best quality") +
(domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const usd = gw["USD"];
auto const gw2 = Account("gateway2");
auto const gw2Usd = gw2["USD"];
env.fund(XRP(10000), "alice", "bob", "carol", "dan", gw, gw2);
env.close();
env(rate("carol", 1.1));
env.trust(Account("carol")["USD"](800), "alice", "bob");
env.trust(Account("dan")["USD"](800), "alice", "bob");
env.trust(usd(800), "alice", "bob");
env.trust(gw2Usd(800), "alice", "bob");
env.trust(Account("alice")["USD"](800), "dan");
env.trust(Account("bob")["USD"](800), "dan");
env.close();
env(pay(gw2, "alice", gw2Usd(100)));
env.close();
env(pay("carol", "alice", Account("carol")["USD"](100)));
env.close();
env(pay(gw, "alice", usd(100)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {"alice", "bob", "carol", "dan", gw, gw2});
}
STPathSet st;
STAmount sa;
std::tie(st, sa, std::ignore) = findPaths(
env, "alice", "bob", Account("bob")["USD"](5), std::nullopt, std::nullopt, domainID);
BEAST_EXPECT(
same(st, stpath("gateway"), stpath("gateway2"), stpath("dan"), stpath("carol")));
BEAST_EXPECT(equal(sa, Account("alice")["USD"](5)));
}
void
issuesPathNegativeIssue(bool const domainEnabled)
{
testcase(
std::string("path negative: Issue #5") + (domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob", "carol", "dan");
env.close();
env.trust(Account("bob")["USD"](100), "alice", "carol", "dan");
env.trust(Account("alice")["USD"](100), "dan");
env.trust(Account("carol")["USD"](100), "dan");
env(pay("bob", "carol", Account("bob")["USD"](75)));
env.require(Balance("bob", Account("carol")["USD"](-75)));
env.require(Balance("carol", Account("bob")["USD"](75)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {"alice", "bob", "carol", "dan"});
}
auto result = findPaths(
env, "alice", "bob", Account("bob")["USD"](25), std::nullopt, std::nullopt, domainID);
BEAST_EXPECT(std::get<0>(result).empty());
env(pay("alice", "bob", Account("alice")["USD"](25)), Ter(tecPATH_DRY));
env.close();
result = findPaths(
env, "alice", "bob", Account("alice")["USD"](25), std::nullopt, std::nullopt, domainID);
BEAST_EXPECT(std::get<0>(result).empty());
env.require(Balance("alice", Account("bob")["USD"](0)));
env.require(Balance("alice", Account("dan")["USD"](0)));
env.require(Balance("bob", Account("alice")["USD"](0)));
env.require(Balance("bob", Account("carol")["USD"](-75)));
env.require(Balance("bob", Account("dan")["USD"](0)));
env.require(Balance("carol", Account("bob")["USD"](75)));
env.require(Balance("carol", Account("dan")["USD"](0)));
env.require(Balance("dan", Account("alice")["USD"](0)));
env.require(Balance("dan", Account("bob")["USD"](0)));
env.require(Balance("dan", Account("carol")["USD"](0)));
}
// alice_ -- limit 40 --> bob_
// alice_ --> carol_ --> dan --> bob_
// Balance of 100 USD Bob - Balance of 37 USD -> Rod
void
issuesPathNegativeRippleClientIssue23Smaller()
{
testcase("path negative: ripple-client issue #23: smaller");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob", "carol", "dan");
env.close();
env.trust(Account("alice")["USD"](40), "bob");
env.trust(Account("dan")["USD"](20), "bob");
env.trust(Account("alice")["USD"](20), "carol");
env.trust(Account("carol")["USD"](20), "dan");
env(pay("alice", "bob", Account("bob")["USD"](55)), Paths(Account("alice")["USD"]));
env.require(Balance("bob", Account("alice")["USD"](40)));
env.require(Balance("bob", Account("dan")["USD"](15)));
}
// alice_ -120 USD-> edward -25 USD-> bob_
// alice_ -25 USD-> carol_ -75 USD -> dan -100 USD-> bob_
void
issuesPathNegativeRippleClientIssue23Larger()
{
testcase("path negative: ripple-client issue #23: larger");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob", "carol", "dan", "edward");
env.close();
env.trust(Account("alice")["USD"](120), "edward");
env.trust(Account("edward")["USD"](25), "bob");
env.trust(Account("dan")["USD"](100), "bob");
env.trust(Account("alice")["USD"](25), "carol");
env.trust(Account("carol")["USD"](75), "dan");
env(pay("alice", "bob", Account("bob")["USD"](50)), Paths(Account("alice")["USD"]));
env.require(Balance("alice", Account("edward")["USD"](-25)));
env.require(Balance("alice", Account("carol")["USD"](-25)));
env.require(Balance("bob", Account("edward")["USD"](25)));
env.require(Balance("bob", Account("dan")["USD"](25)));
env.require(Balance("carol", Account("alice")["USD"](25)));
env.require(Balance("carol", Account("dan")["USD"](-25)));
env.require(Balance("dan", Account("carol")["USD"](25)));
env.require(Balance("dan", Account("bob")["USD"](-25)));
}
// carol_ holds gateway AUD, sells gateway AUD for XRP
// bob_ will hold gateway AUD
// alice_ pays bob_ gateway AUD using XRP
void
viaOffersViaGateway(bool const domainEnabled)
{
testcase(std::string("via gateway") + (domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
auto const gw = Account("gateway");
auto const aud = gw["AUD"];
env.fund(XRP(10000), "alice", "bob", "carol", gw);
env.close();
env(rate(gw, 1.1));
env.close();
env.trust(aud(100), "bob", "carol");
env.close();
env(pay(gw, "carol", aud(50)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {"alice", "bob", "carol", gw});
env(offer("carol", XRP(50), aud(50)), Domain(*domainID));
env.close();
env(pay("alice", "bob", aud(10)), Sendmax(XRP(100)), Paths(XRP), Domain(*domainID));
env.close();
}
else
{
env(offer("carol", XRP(50), aud(50)));
env.close();
env(pay("alice", "bob", aud(10)), Sendmax(XRP(100)), Paths(XRP));
env.close();
}
env.require(Balance("bob", aud(10)));
env.require(Balance("carol", aud(39)));
auto const result = findPaths(
env, "alice", "bob", Account("bob")["USD"](25), std::nullopt, std::nullopt, domainID);
BEAST_EXPECT(std::get<0>(result).empty());
}
void
indirectPathsPathFind()
{
testcase("path find");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob", "carol");
env.close();
env.trust(Account("alice")["USD"](1000), "bob");
env.trust(Account("bob")["USD"](1000), "carol");
STPathSet st;
STAmount sa;
std::tie(st, sa, std::ignore) =
findPaths(env, "alice", "carol", Account("carol")["USD"](5));
BEAST_EXPECT(same(st, stpath("bob")));
BEAST_EXPECT(equal(sa, Account("alice")["USD"](5)));
}
void
qualityPathsQualitySetAndTest()
{
testcase("quality set and test");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob");
env.close();
env(trust("bob", Account("alice")["USD"](1000)),
Json("{\"" + sfQualityIn.fieldName + "\": 2000}"),
Json("{\"" + sfQualityOut.fieldName + "\": 1400000000}"));
json::Value jv;
json::Reader().parse(
R"({
"Balance" : {
"currency" : "USD",
"issuer" : "rrrrrrrrrrrrrrrrrrrrBZbvji",
"value" : "0"
},
"Flags" : 131072,
"HighLimit" : {
"currency" : "USD",
"issuer" : "rPMh7Pi9ct699iZUTWaytJUoHcJ7cgyziK",
"value" : "1000"
},
"HighNode" : "0",
"HighQualityIn" : 2000,
"HighQualityOut" : 1400000000,
"LedgerEntryType" : "RippleState",
"LowLimit" : {
"currency" : "USD",
"issuer" : "rG1QQv2nh2gr7RCZ1P8YYcBUKCCN633jCn",
"value" : "0"
},
"LowNode" : "0"
})",
jv);
auto const jvL = env.le(keylet::line(Account("bob").id(), Account("alice")["USD"]))
->getJson(JsonOptions::Values::None);
for (auto it = jv.begin(); it != jv.end(); ++it)
BEAST_EXPECT(*it == jvL[it.memberName()]);
}
void
trustAutoClearTrustNormalClear()
{
testcase("trust normal clear");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob");
env.close();
env.trust(Account("bob")["USD"](1000), "alice");
env.trust(Account("alice")["USD"](1000), "bob");
json::Value jv;
json::Reader().parse(
R"({
"Balance" : {
"currency" : "USD",
"issuer" : "rrrrrrrrrrrrrrrrrrrrBZbvji",
"value" : "0"
},
"Flags" : 196608,
"HighLimit" : {
"currency" : "USD",
"issuer" : "rPMh7Pi9ct699iZUTWaytJUoHcJ7cgyziK",
"value" : "1000"
},
"HighNode" : "0",
"LedgerEntryType" : "RippleState",
"LowLimit" : {
"currency" : "USD",
"issuer" : "rG1QQv2nh2gr7RCZ1P8YYcBUKCCN633jCn",
"value" : "1000"
},
"LowNode" : "0"
})",
jv);
auto const jvL = env.le(keylet::line(Account("bob").id(), Account("alice")["USD"]))
->getJson(JsonOptions::Values::None);
for (auto it = jv.begin(); it != jv.end(); ++it)
BEAST_EXPECT(*it == jvL[it.memberName()]);
env.trust(Account("bob")["USD"](0), "alice");
env.trust(Account("alice")["USD"](0), "bob");
BEAST_EXPECT(env.le(keylet::line(Account("bob").id(), Account("alice")["USD"])) == nullptr);
}
void
trustAutoClearTrustAutoClear()
{
testcase("trust auto clear");
using namespace jtx;
Env env = pathTestEnv();
env.fund(XRP(10000), "alice", "bob");
env.close();
env.trust(Account("bob")["USD"](1000), "alice");
env(pay("bob", "alice", Account("bob")["USD"](50)));
env.trust(Account("bob")["USD"](0), "alice");
json::Value jv;
json::Reader().parse(
R"({
"Balance" :
{
"currency" : "USD",
"issuer" : "rrrrrrrrrrrrrrrrrrrrBZbvji",
"value" : "50"
},
"Flags" : 65536,
"HighLimit" :
{
"currency" : "USD",
"issuer" : "rPMh7Pi9ct699iZUTWaytJUoHcJ7cgyziK",
"value" : "0"
},
"HighNode" : "0",
"LedgerEntryType" : "RippleState",
"LowLimit" :
{
"currency" : "USD",
"issuer" : "rG1QQv2nh2gr7RCZ1P8YYcBUKCCN633jCn",
"value" : "0"
},
"LowNode" : "0"
})",
jv);
auto const jvL = env.le(keylet::line(Account("alice").id(), Account("bob")["USD"]))
->getJson(JsonOptions::Values::None);
for (auto it = jv.begin(); it != jv.end(); ++it)
BEAST_EXPECT(*it == jvL[it.memberName()]);
env(pay("alice", "bob", Account("alice")["USD"](50)));
BEAST_EXPECT(env.le(keylet::line(Account("alice").id(), Account("bob")["USD"])) == nullptr);
}
void
pathFind01(bool const domainEnabled)
{
testcase(
std::string("Path Find: XRP -> XRP and XRP -> IOU") +
(domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
Account const a1{"A1"};
Account const a2{"A2"};
Account const a3{"A3"};
Account const g1{"G1"};
Account const g2{"G2"};
Account const g3{"G3"};
Account const m1{"M1"};
env.fund(XRP(100000), a1);
env.fund(XRP(10000), a2);
env.fund(XRP(1000), a3, g1, g2, g3, m1);
env.close();
env.trust(g1["XYZ"](5000), a1);
env.trust(g3["ABC"](5000), a1);
env.trust(g2["XYZ"](5000), a2);
env.trust(g3["ABC"](5000), a2);
env.trust(a2["ABC"](1000), a3);
env.trust(g1["XYZ"](100000), m1);
env.trust(g2["XYZ"](100000), m1);
env.trust(g3["ABC"](100000), m1);
env.close();
env(pay(g1, a1, g1["XYZ"](3500)));
env(pay(g3, a1, g3["ABC"](1200)));
env(pay(g2, m1, g2["XYZ"](25000)));
env(pay(g3, m1, g3["ABC"](25000)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {a1, a2, a3, g1, g2, g3, m1});
env(offer(m1, g1["XYZ"](1000), g2["XYZ"](1000)), Domain(*domainID));
env(offer(m1, XRP(10000), g3["ABC"](1000)), Domain(*domainID));
env.close();
}
else
{
env(offer(m1, g1["XYZ"](1000), g2["XYZ"](1000)));
env(offer(m1, XRP(10000), g3["ABC"](1000)));
env.close();
}
STPathSet st;
STAmount sa, da;
{
auto const& sendAmt = XRP(10);
std::tie(st, sa, da) =
findPaths(env, a1, a2, sendAmt, std::nullopt, xrpCurrency(), domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(st.empty());
}
{
// no path should exist for this since dest account
// does not exist.
auto const& sendAmt = XRP(200);
std::tie(st, sa, da) =
findPaths(env, a1, Account{"A0"}, sendAmt, std::nullopt, xrpCurrency(), domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(st.empty());
}
{
auto const& sendAmt = g3["ABC"](10);
std::tie(st, sa, da) =
findPaths(env, a2, g3, sendAmt, std::nullopt, xrpCurrency(), domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, XRP(100)));
BEAST_EXPECT(same(st, stpath(ipe(g3["ABC"]))));
}
{
auto const& sendAmt = a2["ABC"](1);
std::tie(st, sa, da) =
findPaths(env, a1, a2, sendAmt, std::nullopt, xrpCurrency(), domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, XRP(10)));
BEAST_EXPECT(same(st, stpath(ipe(g3["ABC"]), g3)));
}
{
auto const& sendAmt = a3["ABC"](1);
std::tie(st, sa, da) =
findPaths(env, a1, a3, sendAmt, std::nullopt, xrpCurrency(), domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, XRP(10)));
BEAST_EXPECT(same(st, stpath(ipe(g3["ABC"]), g3, a2)));
}
}
void
pathFind02(bool const domainEnabled)
{
testcase(
std::string("Path Find: non-XRP -> XRP") + (domainEnabled ? " w/ " : " w/o ") +
"domain");
using namespace jtx;
Env env = pathTestEnv();
Account const a1{"A1"};
Account const a2{"A2"};
Account const g3{"G3"};
Account const m1{"M1"};
env.fund(XRP(1000), a1, a2, g3);
env.fund(XRP(11000), m1);
env.close();
env.trust(g3["ABC"](1000), a1, a2);
env.trust(g3["ABC"](100000), m1);
env.close();
env(pay(g3, a1, g3["ABC"](1000)));
env(pay(g3, a2, g3["ABC"](1000)));
env(pay(g3, m1, g3["ABC"](1200)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {a1, a2, g3, m1});
env(offer(m1, g3["ABC"](1000), XRP(10000)), Domain(*domainID));
}
else
{
env(offer(m1, g3["ABC"](1000), XRP(10000)));
}
STPathSet st;
STAmount sa, da;
auto const& sendAmt = XRP(10);
{
std::tie(st, sa, da) =
findPaths(env, a1, a2, sendAmt, std::nullopt, a2["ABC"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["ABC"](1)));
BEAST_EXPECT(same(st, stpath(g3, ipe(xrpIssue()))));
}
// domain offer will not be considered in pathfinding for non-domain
// paths
if (domainEnabled)
{
std::tie(st, sa, da) =
findPaths(env, a1, a2, sendAmt, std::nullopt, a2["ABC"].currency);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(st.empty());
}
}
void
pathFind04(bool const domainEnabled)
{
testcase(
std::string("Path Find: Bitstamp and SnapSwap, liquidity with no offers") +
(domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
Account const a1{"A1"};
Account const a2{"A2"};
Account const g1Bs{"G1BS"};
Account const g2Sw{"G2SW"};
Account const m1{"M1"};
env.fund(XRP(1000), g1Bs, g2Sw, a1, a2);
env.fund(XRP(11000), m1);
env.close();
env.trust(g1Bs["HKD"](2000), a1);
env.trust(g2Sw["HKD"](2000), a2);
env.trust(g1Bs["HKD"](100000), m1);
env.trust(g2Sw["HKD"](100000), m1);
env.close();
env(pay(g1Bs, a1, g1Bs["HKD"](1000)));
env(pay(g2Sw, a2, g2Sw["HKD"](1000)));
// SnapSwap wants to be able to set trust line quality settings so they
// can charge a fee when transactions ripple across. Liquidity
// provider, via trusting/holding both accounts
env(pay(g1Bs, m1, g1Bs["HKD"](1200)));
env(pay(g2Sw, m1, g2Sw["HKD"](5000)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
domainID = setupDomain(env, {a1, a2, g1Bs, g2Sw, m1});
STPathSet st;
STAmount sa, da;
{
auto const& sendAmt = a2["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, a1, a2, sendAmt, std::nullopt, a2["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
BEAST_EXPECT(same(st, stpath(g1Bs, m1, g2Sw)));
}
{
auto const& sendAmt = a1["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, a2, a1, sendAmt, std::nullopt, a1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a2["HKD"](10)));
BEAST_EXPECT(same(st, stpath(g2Sw, m1, g1Bs)));
}
{
auto const& sendAmt = a2["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, g1Bs, a2, sendAmt, std::nullopt, a1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, g1Bs["HKD"](10)));
BEAST_EXPECT(same(st, stpath(m1, g2Sw)));
}
{
auto const& sendAmt = m1["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, m1, g1Bs, sendAmt, std::nullopt, a1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, m1["HKD"](10)));
BEAST_EXPECT(st.empty());
}
{
auto const& sendAmt = a1["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, g2Sw, a1, sendAmt, std::nullopt, a1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, g2Sw["HKD"](10)));
BEAST_EXPECT(same(st, stpath(m1, g1Bs)));
}
}
void
pathFind05(bool const domainEnabled)
{
testcase(
std::string("Path Find: non-XRP -> non-XRP, same currency") +
(domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
Account const a1{"A1"};
Account const a2{"A2"};
Account const a3{"A3"};
Account const a4{"A4"};
Account const g1{"G1"};
Account const g2{"G2"};
Account const g3{"G3"};
Account const g4{"G4"};
Account const m1{"M1"};
Account const m2{"M2"};
env.fund(XRP(1000), a1, a2, a3, g1, g2, g3, g4);
env.fund(XRP(10000), a4);
env.fund(XRP(11000), m1, m2);
env.close();
env.trust(g1["HKD"](2000), a1);
env.trust(g2["HKD"](2000), a2);
env.trust(g1["HKD"](2000), a3);
env.trust(g1["HKD"](100000), m1);
env.trust(g2["HKD"](100000), m1);
env.trust(g1["HKD"](100000), m2);
env.trust(g2["HKD"](100000), m2);
env.close();
env(pay(g1, a1, g1["HKD"](1000)));
env(pay(g2, a2, g2["HKD"](1000)));
env(pay(g1, a3, g1["HKD"](1000)));
env(pay(g1, m1, g1["HKD"](1200)));
env(pay(g2, m1, g2["HKD"](5000)));
env(pay(g1, m2, g1["HKD"](1200)));
env(pay(g2, m2, g2["HKD"](5000)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {a1, a2, a3, a4, g1, g2, g3, g4, m1, m2});
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)), Domain(*domainID));
env(offer(m2, XRP(10000), g2["HKD"](1000)), Domain(*domainID));
env(offer(m2, g1["HKD"](1000), XRP(10000)), Domain(*domainID));
}
else
{
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)));
env(offer(m2, XRP(10000), g2["HKD"](1000)));
env(offer(m2, g1["HKD"](1000), XRP(10000)));
}
STPathSet st;
STAmount sa, da;
{
// A) Borrow or repay --
// Source -> Destination (repay source issuer)
auto const& sendAmt = g1["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, a1, g1, sendAmt, std::nullopt, g1["HKD"].currency, domainID);
BEAST_EXPECT(st.empty());
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
}
{
// A2) Borrow or repay --
// Source -> Destination (repay destination issuer)
auto const& sendAmt = a1["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, a1, g1, sendAmt, std::nullopt, g1["HKD"].currency, domainID);
BEAST_EXPECT(st.empty());
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
}
{
// B) Common gateway --
// Source -> AC -> Destination
auto const& sendAmt = a3["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, a1, a3, sendAmt, std::nullopt, g1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
BEAST_EXPECT(same(st, stpath(g1)));
}
{
// C) Gateway to gateway --
// Source -> OB -> Destination
auto const& sendAmt = g2["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, g1, g2, sendAmt, std::nullopt, g1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, g1["HKD"](10)));
BEAST_EXPECT(same(
st,
stpath(ipe(g2["HKD"])),
stpath(m1),
stpath(m2),
stpath(ipe(xrpIssue()), ipe(g2["HKD"]))));
}
{
// D) User to unlinked gateway via order book --
// Source -> AC -> OB -> Destination
auto const& sendAmt = g2["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, a1, g2, sendAmt, std::nullopt, g1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
BEAST_EXPECT(same(
st,
stpath(g1, m1),
stpath(g1, m2),
stpath(g1, ipe(g2["HKD"])),
stpath(g1, ipe(xrpIssue()), ipe(g2["HKD"]))));
}
{
// I4) XRP bridge" --
// Source -> AC -> OB to XRP -> OB from XRP -> AC ->
// Destination
auto const& sendAmt = a2["HKD"](10);
std::tie(st, sa, da) =
findPaths(env, a1, a2, sendAmt, std::nullopt, g1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
BEAST_EXPECT(same(
st,
stpath(g1, m1, g2),
stpath(g1, m2, g2),
stpath(g1, ipe(g2["HKD"]), g2),
stpath(g1, ipe(xrpIssue()), ipe(g2["HKD"]), g2)));
}
}
void
pathFind06(bool const domainEnabled)
{
testcase(
std::string("Path Find: non-XRP -> non-XRP, same currency)") +
(domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
Env env = pathTestEnv();
Account const a1{"A1"};
Account const a2{"A2"};
Account const a3{"A3"};
Account const g1{"G1"};
Account const g2{"G2"};
Account const m1{"M1"};
env.fund(XRP(11000), m1);
env.fund(XRP(1000), a1, a2, a3, g1, g2);
env.close();
env.trust(g1["HKD"](2000), a1);
env.trust(g2["HKD"](2000), a2);
env.trust(a2["HKD"](2000), a3);
env.trust(g1["HKD"](100000), m1);
env.trust(g2["HKD"](100000), m1);
env.close();
env(pay(g1, a1, g1["HKD"](1000)));
env(pay(g2, a2, g2["HKD"](1000)));
env(pay(g1, m1, g1["HKD"](5000)));
env(pay(g2, m1, g2["HKD"](5000)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {a1, a2, a3, g1, g2, m1});
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)), Domain(*domainID));
}
else
{
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)));
}
// E) Gateway to user
// Source -> OB -> AC -> Destination
auto const& sendAmt = a2["HKD"](10);
STPathSet st;
STAmount sa, da;
std::tie(st, sa, da) =
findPaths(env, g1, a2, sendAmt, std::nullopt, g1["HKD"].currency, domainID);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, g1["HKD"](10)));
BEAST_EXPECT(same(st, stpath(m1, g2), stpath(ipe(g2["HKD"]), g2)));
}
void
receiveMax(bool const domainEnabled)
{
testcase(std::string("Receive max") + (domainEnabled ? " w/ " : " w/o ") + "domain");
using namespace jtx;
auto const alice = Account("alice");
auto const bob = Account("bob");
auto const charlie = Account("charlie");
auto const gw = Account("gw");
auto const usd = gw["USD"];
{
// XRP -> IOU receive max
Env env = pathTestEnv();
env.fund(XRP(10000), alice, bob, charlie, gw);
env.close();
env.trust(usd(100), alice, bob, charlie);
env.close();
env(pay(gw, charlie, usd(10)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {alice, bob, charlie, gw});
env(offer(charlie, XRP(10), usd(10)), Domain(*domainID));
env.close();
}
else
{
env(offer(charlie, XRP(10), usd(10)));
env.close();
}
auto [st, sa, da] =
findPaths(env, alice, bob, usd(-1), XRP(100).value(), std::nullopt, domainID);
BEAST_EXPECT(sa == XRP(10));
BEAST_EXPECT(equal(da, usd(10)));
if (BEAST_EXPECT(st.size() == 1 && st[0].size() == 1))
{
auto const& pathElem = st[0][0];
BEAST_EXPECT(
pathElem.isOffer() && pathElem.getIssuerID() == gw.id() &&
pathElem.getCurrency() == usd.currency);
}
}
{
// IOU -> XRP receive max
Env env = pathTestEnv();
env.fund(XRP(10000), alice, bob, charlie, gw);
env.close();
env.trust(usd(100), alice, bob, charlie);
env.close();
env(pay(gw, alice, usd(10)));
env.close();
std::optional<uint256> domainID;
if (domainEnabled)
{
domainID = setupDomain(env, {alice, bob, charlie, gw});
env(offer(charlie, usd(10), XRP(10)), Domain(*domainID));
env.close();
}
else
{
env(offer(charlie, usd(10), XRP(10)));
env.close();
}
auto [st, sa, da] =
findPaths(env, alice, bob, drops(-1), usd(100).value(), std::nullopt, domainID);
BEAST_EXPECT(sa == usd(10));
BEAST_EXPECT(equal(da, XRP(10)));
if (BEAST_EXPECT(st.size() == 1 && st[0].size() == 1))
{
auto const& pathElem = st[0][0];
BEAST_EXPECT(
pathElem.isOffer() && pathElem.getIssuerID() == xrpAccount() &&
pathElem.getCurrency() == xrpCurrency());
}
}
}
void
norippleCombinations()
{
using namespace jtx;
// This test will create trust lines with various values of the noRipple
// flag. alice_ <-> george <-> bob_ george will sort of act like a
// gateway, but use a different name to avoid the usual assumptions
// about gateways.
auto const alice = Account("alice");
auto const bob = Account("bob");
auto const george = Account("george");
auto const usd = george["USD"];
auto test = [&](std::string casename, bool aliceRipple, bool bobRipple, bool expectPath) {
testcase(casename);
Env env = pathTestEnv();
env.fund(XRP(10000), noripple(alice, bob, george));
env.close();
// Set the same flags at both ends of the trustline, even though
// only george's matter.
env(trust(alice, usd(100), aliceRipple ? tfClearNoRipple : tfSetNoRipple));
env(trust(george, alice["USD"](100), aliceRipple ? tfClearNoRipple : tfSetNoRipple));
env(trust(bob, usd(100), bobRipple ? tfClearNoRipple : tfSetNoRipple));
env(trust(george, bob["USD"](100), bobRipple ? tfClearNoRipple : tfSetNoRipple));
env.close();
env(pay(george, alice, usd(70)));
env.close();
auto [st, sa, da] = findPaths(env, "alice", "bob", Account("bob")["USD"](5));
BEAST_EXPECT(equal(da, bob["USD"](5)));
if (expectPath)
{
BEAST_EXPECT(st.size() == 1);
BEAST_EXPECT(same(st, stpath("george")));
BEAST_EXPECT(equal(sa, alice["USD"](5)));
}
else
{
BEAST_EXPECT(st.empty());
BEAST_EXPECT(equal(sa, XRP(0)));
}
};
test("ripple -> ripple", true, true, true);
test("ripple -> no ripple", true, false, true);
test("no ripple -> ripple", false, true, true);
test("no ripple -> no ripple", false, false, false);
}
void
hybridOfferPath()
{
testcase("Hybrid offer path");
using namespace jtx;
// test cases copied from path_find_05 and ensures path results for
// different combinations of open/domain/hybrid offers. `func` is a
// lambda param that creates different types of offers
auto testPathfind = [&](auto func, bool const domainEnabled = false) {
Env env = pathTestEnv();
Account const a1{"A1"};
Account const a2{"A2"};
Account const a3{"A3"};
Account const a4{"A4"};
Account const g1{"G1"};
Account const g2{"G2"};
Account const g3{"G3"};
Account const g4{"G4"};
Account const m1{"M1"};
Account const m2{"M2"};
env.fund(XRP(1000), a1, a2, a3, g1, g2, g3, g4);
env.fund(XRP(10000), a4);
env.fund(XRP(11000), m1, m2);
env.close();
env.trust(g1["HKD"](2000), a1);
env.trust(g2["HKD"](2000), a2);
env.trust(g1["HKD"](2000), a3);
env.trust(g1["HKD"](100000), m1);
env.trust(g2["HKD"](100000), m1);
env.trust(g1["HKD"](100000), m2);
env.trust(g2["HKD"](100000), m2);
env.close();
env(pay(g1, a1, g1["HKD"](1000)));
env(pay(g2, a2, g2["HKD"](1000)));
env(pay(g1, a3, g1["HKD"](1000)));
env(pay(g1, m1, g1["HKD"](1200)));
env(pay(g2, m1, g2["HKD"](5000)));
env(pay(g1, m2, g1["HKD"](1200)));
env(pay(g2, m2, g2["HKD"](5000)));
env.close();
std::optional<uint256> domainID =
setupDomain(env, {a1, a2, a3, a4, g1, g2, g3, g4, m1, m2});
BEAST_EXPECT(domainID);
func(env, m1, m2, g1, g2, *domainID);
STPathSet st;
STAmount sa, da;
{
// A) Borrow or repay --
// Source -> Destination (repay source issuer)
auto const& sendAmt = g1["HKD"](10);
std::tie(st, sa, da) = findPaths(
env,
a1,
g1,
sendAmt,
std::nullopt,
g1["HKD"].currency,
domainEnabled ? domainID : std::nullopt);
BEAST_EXPECT(st.empty());
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
}
{
// A2) Borrow or repay --
// Source -> Destination (repay destination issuer)
auto const& sendAmt = a1["HKD"](10);
std::tie(st, sa, da) = findPaths(
env,
a1,
g1,
sendAmt,
std::nullopt,
g1["HKD"].currency,
domainEnabled ? domainID : std::nullopt);
BEAST_EXPECT(st.empty());
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
}
{
// B) Common gateway --
// Source -> AC -> Destination
auto const& sendAmt = a3["HKD"](10);
std::tie(st, sa, da) = findPaths(
env,
a1,
a3,
sendAmt,
std::nullopt,
g1["HKD"].currency,
domainEnabled ? domainID : std::nullopt);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
BEAST_EXPECT(same(st, stpath(g1)));
}
{
// C) Gateway to gateway --
// Source -> OB -> Destination
auto const& sendAmt = g2["HKD"](10);
std::tie(st, sa, da) = findPaths(
env,
g1,
g2,
sendAmt,
std::nullopt,
g1["HKD"].currency,
domainEnabled ? domainID : std::nullopt);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, g1["HKD"](10)));
BEAST_EXPECT(same(
st,
stpath(ipe(g2["HKD"])),
stpath(m1),
stpath(m2),
stpath(ipe(xrpIssue()), ipe(g2["HKD"]))));
}
{
// D) User to unlinked gateway via order book --
// Source -> AC -> OB -> Destination
auto const& sendAmt = g2["HKD"](10);
std::tie(st, sa, da) = findPaths(
env,
a1,
g2,
sendAmt,
std::nullopt,
g1["HKD"].currency,
domainEnabled ? domainID : std::nullopt);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
BEAST_EXPECT(same(
st,
stpath(g1, m1),
stpath(g1, m2),
stpath(g1, ipe(g2["HKD"])),
stpath(g1, ipe(xrpIssue()), ipe(g2["HKD"]))));
}
{
// I4) XRP bridge" --
// Source -> AC -> OB to XRP -> OB from XRP -> AC ->
// Destination
auto const& sendAmt = a2["HKD"](10);
std::tie(st, sa, da) = findPaths(
env,
a1,
a2,
sendAmt,
std::nullopt,
g1["HKD"].currency,
domainEnabled ? domainID : std::nullopt);
BEAST_EXPECT(equal(da, sendAmt));
BEAST_EXPECT(equal(sa, a1["HKD"](10)));
BEAST_EXPECT(same(
st,
stpath(g1, m1, g2),
stpath(g1, m2, g2),
stpath(g1, ipe(g2["HKD"]), g2),
stpath(g1, ipe(xrpIssue()), ipe(g2["HKD"]), g2)));
}
};
// the following tests exercise different combinations of open/hybrid
// offers to make sure that hybrid offers work in pathfinding for open
// order book
{
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, XRP(10000), g2["HKD"](1000)));
env(offer(m2, g1["HKD"](1000), XRP(10000)));
});
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, XRP(10000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, g1["HKD"](1000), XRP(10000)));
});
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, XRP(10000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, g1["HKD"](1000), XRP(10000)),
Domain(domainID),
Txflags(tfHybrid));
});
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)));
env(offer(m2, XRP(10000), g2["HKD"](1000)));
env(offer(m2, g1["HKD"](1000), XRP(10000)),
Domain(domainID),
Txflags(tfHybrid));
});
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)));
env(offer(m2, XRP(10000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, g1["HKD"](1000), XRP(10000)),
Domain(domainID),
Txflags(tfHybrid));
});
}
// the following tests exercise different combinations of domain/hybrid
// offers to make sure that hybrid offers work in pathfinding for domain
// order book
{
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, XRP(10000), g2["HKD"](1000)), Domain(domainID));
env(offer(m2, g1["HKD"](1000), XRP(10000)), Domain(domainID));
},
true);
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, XRP(10000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, g1["HKD"](1000), XRP(10000)), Domain(domainID));
},
true);
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)), Domain(domainID));
env(offer(m2, XRP(10000), g2["HKD"](1000)), Domain(domainID));
env(offer(m2, g1["HKD"](1000), XRP(10000)),
Domain(domainID),
Txflags(tfHybrid));
},
true);
testPathfind(
[](Env& env, Account m1, Account m2, Account g1, Account g2, uint256 domainID) {
env(offer(m1, g1["HKD"](1000), g2["HKD"](1000)), Domain(domainID));
env(offer(m2, XRP(10000), g2["HKD"](1000)),
Domain(domainID),
Txflags(tfHybrid));
env(offer(m2, g1["HKD"](1000), XRP(10000)),
Domain(domainID),
Txflags(tfHybrid));
},
true);
}
}
void
ammDomainPath()
{
testcase("AMM not used in domain path");
using namespace jtx;
Env env = pathTestEnv();
PermissionedDEX const permDex(env);
auto const& [gw_, domainOwner, alice_, bob_, carol_, USD, domainID, credType] = permDex;
AMM const amm(env, alice_, XRP(10), USD(50));
STPathSet st;
STAmount sa, da;
auto const& sendAmt = XRP(1);
// doing pathfind with domain won't include amm
std::tie(st, sa, da) =
findPaths(env, bob_, carol_, sendAmt, std::nullopt, USD.currency, domainID);
BEAST_EXPECT(st.empty());
// a non-domain pathfind returns amm in the path
std::tie(st, sa, da) = findPaths(env, bob_, carol_, sendAmt, std::nullopt, USD.currency);
BEAST_EXPECT(same(st, stpath(gw_, ipe(xrpIssue()))));
}
void
run() override
{
sourceCurrenciesLimit();
noDirectPathNoIntermediaryNoAlternatives();
directPathNoIntermediary();
paymentAutoPathFind();
indirectPathsPathFind();
alternativePathsConsumeBestTransferFirst();
issuesPathNegativeRippleClientIssue23Smaller();
issuesPathNegativeRippleClientIssue23Larger();
qualityPathsQualitySetAndTest();
trustAutoClearTrustNormalClear();
trustAutoClearTrustAutoClear();
norippleCombinations();
for (bool const domainEnabled : {false, true})
{
pathFind(domainEnabled);
pathFindConsumeAll(domainEnabled);
alternativePathConsumeBoth(domainEnabled);
alternativePathsConsumeBestTransfer(domainEnabled);
alternativePathsLimitReturnedPathsToBestQuality(domainEnabled);
issuesPathNegativeIssue(domainEnabled);
viaOffersViaGateway(domainEnabled);
xrpToXrp(domainEnabled);
receiveMax(domainEnabled);
// The following path_find_NN tests are data driven tests
// that were originally implemented in js/coffee and migrated
// here. The quantities and currencies used are taken directly from
// those legacy tests, which in some cases probably represented
// customer use cases.
pathFind01(domainEnabled);
pathFind02(domainEnabled);
pathFind04(domainEnabled);
pathFind05(domainEnabled);
pathFind06(domainEnabled);
}
hybridOfferPath();
ammDomainPath();
}
};
BEAST_DEFINE_TESTSUITE(Path, app, xrpl);
} // namespace xrpl::test
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