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xahaud/src/test/app/TrustAndBalance_test.cpp
Scott Schurr 369909df84 Use payment flow code for offer crossing (RIPD-1094): 
Replace Taker.cpp with calls to the payment flow() code.

This change required a number of tweaks in the payment flow code.
These tweaks are conditionalized on whether or not offer crossing
is taking place.  The flag is explicitly passed as a parameter to
the flow code.

For testing, a class was added that identifies differences in the
contents of two PaymentSandboxes.  That code may be reusable in
the future.

None of the Taker offer crossing code is removed.  Both versions
of the code are co-resident to support an amendment cut-over.

The code that identifies differences between Taker and Flow offer
crossing is enabled by a feature.  That makes it easy to enable
or disable difference logging by changing the config file.  This
approach models what was done with the payment flow code.  The
differencing code should never be enabled on a production server.

Extensive offer crossing unit tests are added to examine and
verify the behavior of corner cases.  The tests are currently
configured to run against both Taker and Flow offer crossing.
This gives us confidence that most cases run identically and
some of the (few) differences in behavior are documented.
2017-04-24 09:24:46 -07:00

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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012-2016 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 <BeastConfig.h>
#include <test/jtx.h>
#include <ripple/beast/unit_test.h>
#include <ripple/protocol/Feature.h>
#include <ripple/protocol/JsonFields.h>
#include <ripple/protocol/SField.h>
#include <test/jtx/WSClient.h>
namespace ripple {
class TrustAndBalance_test : public beast::unit_test::suite
{
static auto
ledgerEntryState(
test::jtx::Env & env,
test::jtx::Account const& acct_a,
test::jtx::Account const & acct_b,
std::string const& currency)
{
Json::Value jvParams;
jvParams[jss::ledger_index] = "current";
jvParams[jss::ripple_state][jss::currency] = currency;
jvParams[jss::ripple_state][jss::accounts] = Json::arrayValue;
jvParams[jss::ripple_state][jss::accounts].append(acct_a.human());
jvParams[jss::ripple_state][jss::accounts].append(acct_b.human());
return env.rpc ("json", "ledger_entry", to_string(jvParams))[jss::result];
};
void
testPayNonexistent (std::initializer_list<uint256> fs)
{
testcase ("Payment to Nonexistent Account");
using namespace test::jtx;
Env env {*this, features(fs)};
env (pay (env.master, "alice", XRP(1)), ter(tecNO_DST_INSUF_XRP));
env.close();
}
void
testTrustNonexistent ()
{
testcase ("Trust Nonexistent Account");
using namespace test::jtx;
Env env {*this};
Account alice {"alice"};
env (trust (env.master, alice["USD"](100)), ter(tecNO_DST));
}
void
testCreditLimit ()
{
testcase ("Credit Limit");
using namespace test::jtx;
Env env {*this};
Account gw {"gateway"};
Account alice {"alice"};
Account bob {"bob"};
env.fund (XRP(10000), gw, alice, bob);
env.close();
// credit limit doesn't exist yet - verify ledger_entry
// reflects this
auto jrr = ledgerEntryState (env, gw, alice, "USD");
BEAST_EXPECT(jrr[jss::error] == "entryNotFound");
// now create a credit limit
env (trust (alice, gw["USD"](800)));
jrr = ledgerEntryState (env, gw, alice, "USD");
BEAST_EXPECT(
jrr[jss::node][sfBalance.fieldName][jss::value] == "0");
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::value] == "800");
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::issuer] == alice.human());
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::currency] == "USD");
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::value] == "0");
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::issuer] == gw.human());
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::currency] == "USD");
// modify the credit limit
env (trust (alice, gw["USD"](700)));
jrr = ledgerEntryState (env, gw, alice, "USD");
BEAST_EXPECT(
jrr[jss::node][sfBalance.fieldName][jss::value] == "0");
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::value] == "700");
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::issuer] == alice.human());
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::currency] == "USD");
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::value] == "0");
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::issuer] == gw.human());
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::currency] == "USD");
// set negative limit - expect failure
env (trust (alice, gw["USD"](-1)), ter(temBAD_LIMIT));
// set zero limit
env (trust (alice, gw["USD"](0)));
//ensure line is deleted
jrr = ledgerEntryState (env, gw, alice, "USD");
BEAST_EXPECT(jrr[jss::error] == "entryNotFound");
// TODO Check in both owner books.
// set another credit limit
env (trust (alice, bob["USD"](600)));
// set limit on other side
env (trust (bob, alice["USD"](500)));
// check the ledger state for the trust line
jrr = ledgerEntryState (env, alice, bob, "USD");
BEAST_EXPECT(
jrr[jss::node][sfBalance.fieldName][jss::value] == "0");
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::value] == "500");
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::issuer] == bob.human());
BEAST_EXPECT(
jrr[jss::node][sfHighLimit.fieldName][jss::currency] == "USD");
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::value] == "600");
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::issuer] == alice.human());
BEAST_EXPECT(
jrr[jss::node][sfLowLimit.fieldName][jss::currency] == "USD");
}
void
testDirectRipple (std::initializer_list<uint256> fs)
{
testcase ("Direct Payment, Ripple");
using namespace test::jtx;
Env env {*this, features(fs)};
Account alice {"alice"};
Account bob {"bob"};
env.fund (XRP(10000), alice, bob);
env.close();
env (trust (alice, bob["USD"](600)));
env (trust (bob, alice["USD"](700)));
// alice sends bob partial with alice as issuer
env (pay (alice, bob, alice["USD"](24)));
env.require (balance (bob, alice["USD"](24)));
// alice sends bob more with bob as issuer
env (pay (alice, bob, bob["USD"](33)));
env.require (balance (bob, alice["USD"](57)));
// bob sends back more than sent
env (pay (bob, alice, bob["USD"](90)));
env.require (balance (bob, alice["USD"](-33)));
// alice sends to her limit
env (pay (alice, bob, bob["USD"](733)));
env.require (balance (bob, alice["USD"](700)));
// bob sends to his limit
env (pay (bob, alice, bob["USD"](1300)));
env.require (balance (bob, alice["USD"](-600)));
// bob sends past limit
env (pay (bob, alice, bob["USD"](1)), ter(tecPATH_DRY));
env.require (balance (bob, alice["USD"](-600)));
}
void
testWithTransferFee (bool subscribe, bool with_rate, std::initializer_list<uint256> fs)
{
testcase(std::string("Direct Payment: ") +
(with_rate ? "With " : "Without ") + " Xfer Fee, " +
(subscribe ? "With " : "Without ") + " Subscribe");
using namespace test::jtx;
Env env {*this, features(fs)};
auto wsc = test::makeWSClient(env.app().config());
Account gw {"gateway"};
Account alice {"alice"};
Account bob {"bob"};
env.fund (XRP(10000), gw, alice, bob);
env.close();
env (trust (alice, gw["AUD"](100)));
env (trust (bob, gw["AUD"](100)));
env (pay (gw, alice, alice["AUD"](1)));
env.close();
env.require (balance (alice, gw["AUD"](1)));
// alice sends bob 1 AUD
env (pay (alice, bob, gw["AUD"](1)));
env.close();
env.require (balance (alice, gw["AUD"](0)));
env.require (balance (bob, gw["AUD"](1)));
env.require (balance (gw, bob["AUD"](-1)));
if(with_rate)
{
// set a transfer rate
env (rate (gw, 1.1));
env.close();
// bob sends alice 0.5 AUD with a max to spend
env (pay (bob, alice, gw["AUD"](0.5)), sendmax(gw["AUD"](0.55)));
}
else
{
// bob sends alice 0.5 AUD
env (pay (bob, alice, gw["AUD"](0.5)));
}
env.require (balance (alice, gw["AUD"](0.5)));
env.require (balance (bob, gw["AUD"](with_rate ? 0.45 : 0.5)));
env.require (balance (gw, bob["AUD"](with_rate ? -0.45 : -0.5)));
if (subscribe)
{
Json::Value jvs;
jvs[jss::accounts] = Json::arrayValue;
jvs[jss::accounts].append(gw.human());
jvs[jss::streams] = Json::arrayValue;
jvs[jss::streams].append("transactions");
jvs[jss::streams].append("ledger");
auto jv = wsc->invoke("subscribe", jvs);
BEAST_EXPECT(jv[jss::status] == "success");
env.close();
BEAST_EXPECT(wsc->findMsg(5s,
[](auto const& jv)
{
auto const& t = jv[jss::transaction];
return t[jss::TransactionType] == "Payment";
}));
BEAST_EXPECT(wsc->findMsg(5s,
[](auto const& jv)
{
return jv[jss::type] == "ledgerClosed";
}));
BEAST_EXPECT(wsc->invoke("unsubscribe",jv)[jss::status] == "success");
}
}
void
testWithPath (std::initializer_list<uint256> fs)
{
testcase ("Payments With Paths and Fees");
using namespace test::jtx;
Env env {*this, features(fs)};
Account gw {"gateway"};
Account alice {"alice"};
Account bob {"bob"};
env.fund (XRP(10000), gw, alice, bob);
env.close();
// set a transfer rate
env (rate (gw, 1.1));
env (trust (alice, gw["AUD"](100)));
env (trust (bob, gw["AUD"](100)));
env (pay (gw, alice, alice["AUD"](4.4)));
env.require (balance (alice, gw["AUD"](4.4)));
// alice sends gw issues to bob with a max spend that allows for the
// xfer rate
env (pay (alice, bob, gw["AUD"](1)), sendmax(gw["AUD"](1.1)));
env.require (balance (alice, gw["AUD"](3.3)));
env.require (balance (bob, gw["AUD"](1)));
// alice sends bob issues to bob with a max spend
env (pay (alice, bob, bob["AUD"](1)), sendmax(gw["AUD"](1.1)));
env.require (balance (alice, gw["AUD"](2.2)));
env.require (balance (bob, gw["AUD"](2)));
// alice sends gw issues to bob with a max spend
env (pay (alice, bob, gw["AUD"](1)), sendmax(alice["AUD"](1.1)));
env.require (balance (alice, gw["AUD"](1.1)));
env.require (balance (bob, gw["AUD"](3)));
// alice sends bob issues to bob with a max spend in alice issues.
// expect fail since gw is not involved
env (pay (alice, bob, bob["AUD"](1)), sendmax(alice["AUD"](1.1)),
ter(tecPATH_DRY));
env.require (balance (alice, gw["AUD"](1.1)));
env.require (balance (bob, gw["AUD"](3)));
}
void
testIndirect (std::initializer_list<uint256> fs)
{
testcase ("Indirect Payment");
using namespace test::jtx;
Env env {*this, features(fs)};
Account gw {"gateway"};
Account alice {"alice"};
Account bob {"bob"};
env.fund (XRP(10000), gw, alice, bob);
env.close();
env (trust (alice, gw["USD"](600)));
env (trust (bob, gw["USD"](700)));
env (pay (gw, alice, alice["USD"](70)));
env (pay (gw, bob, bob["USD"](50)));
env.require (balance (alice, gw["USD"](70)));
env.require (balance (bob, gw["USD"](50)));
// alice sends more than has to issuer: 100 out of 70
env (pay (alice, gw, gw["USD"](100)), ter(tecPATH_PARTIAL));
// alice sends more than has to bob: 100 out of 70
env (pay (alice, bob, gw["USD"](100)), ter(tecPATH_PARTIAL));
env.close();
env.require (balance (alice, gw["USD"](70)));
env.require (balance (bob, gw["USD"](50)));
// send with an account path
env (pay (alice, bob, gw["USD"](5)), test::jtx::path(gw));
env.require (balance (alice, gw["USD"](65)));
env.require (balance (bob, gw["USD"](55)));
}
void
testIndirectMultiPath (bool with_rate, std::initializer_list<uint256> fs)
{
testcase (std::string("Indirect Payment, Multi Path, ") +
(with_rate ? "With " : "Without ") + " Xfer Fee, ");
using namespace test::jtx;
Env env {*this, features(fs)};
Account gw {"gateway"};
Account amazon {"amazon"};
Account alice {"alice"};
Account bob {"bob"};
Account carol {"carol"};
env.fund (XRP(10000), gw, amazon, alice, bob, carol);
env.close();
env (trust (amazon, gw["USD"](2000)));
env (trust (bob, alice["USD"](600)));
env (trust (bob, gw["USD"](1000)));
env (trust (carol, alice["USD"](700)));
env (trust (carol, gw["USD"](1000)));
if (with_rate)
env (rate (gw, 1.1));
env (pay (gw, bob, bob["USD"](100)));
env (pay (gw, carol, carol["USD"](100)));
env.close();
// alice pays amazon via multiple paths
if (with_rate)
env (pay (alice, amazon, gw["USD"](150)),
sendmax(alice["USD"](200)),
test::jtx::path(bob),
test::jtx::path(carol));
else
env (pay (alice, amazon, gw["USD"](150)),
test::jtx::path(bob),
test::jtx::path(carol));
if (with_rate)
{
// 65.00000000000001 is correct.
// This is result of limited precision.
env.require (balance (
alice,
STAmount(
carol["USD"].issue(),
6500000000000001ull,
-14,
false,
true,
STAmount::unchecked{})));
env.require (balance (carol, gw["USD"](35)));
}
else
{
env.require (balance (alice, carol["USD"](-50)));
env.require (balance (carol, gw["USD"](50)));
}
env.require (balance (alice, bob["USD"](-100)));
env.require (balance (amazon, gw["USD"](150)));
env.require (balance (bob, gw["USD"](0)));
}
void
testInvoiceID (std::initializer_list<uint256> fs)
{
testcase ("Set Invoice ID on Payment");
using namespace test::jtx;
Env env {*this, features(fs)};
Account alice {"alice"};
auto wsc = test::makeWSClient(env.app().config());
env.fund (XRP(10000), alice);
env.close();
Json::Value jvs;
jvs[jss::accounts] = Json::arrayValue;
jvs[jss::accounts].append(env.master.human());
jvs[jss::streams] = Json::arrayValue;
jvs[jss::streams].append("transactions");
BEAST_EXPECT(wsc->invoke("subscribe", jvs)[jss::status] == "success");
Json::Value jv;
auto tx = env.jt (
pay (env.master, alice, XRP(10000)),
json(sfInvoiceID.fieldName, "DEADBEEF"));
jv[jss::tx_blob] = strHex (tx.stx->getSerializer().slice());
auto jrr = wsc->invoke("submit", jv) [jss::result];
BEAST_EXPECT(jrr[jss::status] == "success");
BEAST_EXPECT(jrr[jss::tx_json][sfInvoiceID.fieldName] ==
"0000000000000000"
"0000000000000000"
"0000000000000000"
"00000000DEADBEEF");
env.close();
BEAST_EXPECT(wsc->findMsg(2s,
[](auto const& jv)
{
auto const& t = jv[jss::transaction];
return
t[jss::TransactionType] == "Payment" &&
t[sfInvoiceID.fieldName] ==
"0000000000000000"
"0000000000000000"
"0000000000000000"
"00000000DEADBEEF";
}));
BEAST_EXPECT(wsc->invoke("unsubscribe",jv)[jss::status] == "success");
}
public:
void run ()
{
testTrustNonexistent ();
testCreditLimit ();
auto testWithFeatures = [this](std::initializer_list<uint256> fs) {
testPayNonexistent(fs);
testDirectRipple(fs);
testWithTransferFee(false, false, fs);
testWithTransferFee(false, true, fs);
testWithTransferFee(true, false, fs);
testWithTransferFee(true, true, fs);
testWithPath(fs);
testIndirect(fs);
testIndirectMultiPath(true, fs);
testIndirectMultiPath(false, fs);
testInvoiceID(fs);
};
testWithFeatures({});
testWithFeatures({featureFlow});
testWithFeatures({featureFlow, fix1373});
testWithFeatures({featureFlow, fix1373, featureFlowCross});
}
};
BEAST_DEFINE_TESTSUITE (TrustAndBalance, app, ripple);
} // ripple
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