mirror of
https://github.com/XRPLF/rippled.git
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1eb0fdac65
This change renames all occurrences of `namespace ripple` and `ripple::` to `namespace xrpl` and `xrpl::`, respectively, as well as the names of test suites. It also provides a script to allow developers to replicate the changes in their local branch or fork to avoid conflicts.
942 lines
30 KiB
C++
942 lines
30 KiB
C++
#include <test/jtx.h>
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#include <test/jtx/trust.h>
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#include <xrpl/protocol/Feature.h>
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namespace xrpl {
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class Clawback_test : public beast::unit_test::suite
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{
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template <class T>
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static std::string
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to_string(T const& t)
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{
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return boost::lexical_cast<std::string>(t);
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}
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// Helper function that returns the number of tickets held by an account.
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static std::uint32_t
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ticketCount(test::jtx::Env const& env, test::jtx::Account const& acct)
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{
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std::uint32_t ret{0};
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if (auto const sleAcct = env.le(acct))
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ret = sleAcct->at(~sfTicketCount).value_or(0);
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return ret;
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}
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// Helper function that returns the freeze status of a trustline
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static bool
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getLineFreezeFlag(
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test::jtx::Env const& env,
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test::jtx::Account const& src,
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test::jtx::Account const& dst,
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Currency const& cur)
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{
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if (auto sle = env.le(keylet::line(src, dst, cur)))
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{
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auto const useHigh = src.id() > dst.id();
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return sle->isFlag(useHigh ? lsfHighFreeze : lsfLowFreeze);
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}
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Throw<std::runtime_error>("No line in getLineFreezeFlag");
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return false; // silence warning
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}
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void
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testAllowTrustLineClawbackFlag(FeatureBitset features)
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{
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testcase("Enable AllowTrustLineClawback flag");
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using namespace test::jtx;
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// Test that one can successfully set asfAllowTrustLineClawback flag.
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// If successful, asfNoFreeze can no longer be set.
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// Also, asfAllowTrustLineClawback cannot be cleared.
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{
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Env env(*this, features);
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Account alice{"alice"};
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env.fund(XRP(1000), alice);
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env.close();
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// set asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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// clear asfAllowTrustLineClawback does nothing
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env(fclear(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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// asfNoFreeze cannot be set when asfAllowTrustLineClawback is set
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env.require(nflags(alice, asfNoFreeze));
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env(fset(alice, asfNoFreeze), ter(tecNO_PERMISSION));
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env.close();
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}
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// Test that asfAllowTrustLineClawback cannot be set when
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// asfNoFreeze has been set
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{
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Env env(*this, features);
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Account alice{"alice"};
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env.fund(XRP(1000), alice);
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env.close();
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env.require(nflags(alice, asfNoFreeze));
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// set asfNoFreeze
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env(fset(alice, asfNoFreeze));
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env.close();
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// NoFreeze is set
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env.require(flags(alice, asfNoFreeze));
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// asfAllowTrustLineClawback cannot be set if asfNoFreeze is set
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env(fset(alice, asfAllowTrustLineClawback), ter(tecNO_PERMISSION));
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env.close();
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env.require(nflags(alice, asfAllowTrustLineClawback));
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}
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// Test that asfAllowTrustLineClawback is not allowed when owner dir is
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// non-empty
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{
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Env env(*this, features);
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Account alice{"alice"};
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Account bob{"bob"};
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env.fund(XRP(1000), alice, bob);
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env.close();
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auto const USD = alice["USD"];
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env.require(nflags(alice, asfAllowTrustLineClawback));
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// alice issues 10 USD to bob
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env.trust(USD(1000), bob);
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env(pay(alice, bob, USD(10)));
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env.close();
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BEAST_EXPECT(ownerCount(env, alice) == 0);
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BEAST_EXPECT(ownerCount(env, bob) == 1);
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// alice fails to enable clawback because she has trustline with bob
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env(fset(alice, asfAllowTrustLineClawback), ter(tecOWNERS));
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env.close();
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// bob sets trustline to default limit and pays alice back to delete
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// the trustline
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env(trust(bob, USD(0), 0));
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env(pay(bob, alice, USD(10)));
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BEAST_EXPECT(ownerCount(env, alice) == 0);
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BEAST_EXPECT(ownerCount(env, bob) == 0);
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// alice now is able to set asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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BEAST_EXPECT(ownerCount(env, alice) == 0);
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BEAST_EXPECT(ownerCount(env, bob) == 0);
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}
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// Test that one cannot enable asfAllowTrustLineClawback when
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// featureClawback amendment is disabled
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{
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Env env(*this, features - featureClawback);
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Account alice{"alice"};
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env.fund(XRP(1000), alice);
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env.close();
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env.require(nflags(alice, asfAllowTrustLineClawback));
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// alice attempts to set asfAllowTrustLineClawback flag while
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// amendment is disabled. no error is returned, but the flag remains
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// to be unset.
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(nflags(alice, asfAllowTrustLineClawback));
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// now enable clawback amendment
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env.enableFeature(featureClawback);
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env.close();
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// asfAllowTrustLineClawback can be set
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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}
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}
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void
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testValidation(FeatureBitset features)
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{
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testcase("Validation");
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using namespace test::jtx;
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// Test that Clawback tx fails for the following:
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// 1. when amendment is disabled
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// 2. when asfAllowTrustLineClawback flag has not been set
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{
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Env env(*this, features - featureClawback);
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Account alice{"alice"};
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Account bob{"bob"};
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env.fund(XRP(1000), alice, bob);
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env.close();
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env.require(nflags(alice, asfAllowTrustLineClawback));
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auto const USD = alice["USD"];
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// alice issues 10 USD to bob
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env.trust(USD(1000), bob);
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env(pay(alice, bob, USD(10)));
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env.close();
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env.require(balance(bob, alice["USD"](10)));
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env.require(balance(alice, bob["USD"](-10)));
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// clawback fails because amendment is disabled
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env(claw(alice, bob["USD"](5)), ter(temDISABLED));
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env.close();
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// now enable clawback amendment
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env.enableFeature(featureClawback);
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env.close();
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// clawback fails because asfAllowTrustLineClawback has not been set
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env(claw(alice, bob["USD"](5)), ter(tecNO_PERMISSION));
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env.close();
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env.require(balance(bob, alice["USD"](10)));
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env.require(balance(alice, bob["USD"](-10)));
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}
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// Test that Clawback tx fails for the following:
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// 1. invalid flag
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// 2. negative STAmount
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// 3. zero STAmount
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// 4. XRP amount
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// 5. `account` and `issuer` fields are same account
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// 6. trustline has a balance of 0
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// 7. trustline does not exist
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{
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Env env(*this, features);
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Account alice{"alice"};
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Account bob{"bob"};
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env.fund(XRP(1000), alice, bob);
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env.close();
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// alice sets asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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auto const USD = alice["USD"];
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// alice issues 10 USD to bob
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env.trust(USD(1000), bob);
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env(pay(alice, bob, USD(10)));
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env.close();
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env.require(balance(bob, alice["USD"](10)));
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env.require(balance(alice, bob["USD"](-10)));
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// fails due to invalid flag
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env(claw(alice, bob["USD"](5)),
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txflags(0x00008000),
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ter(temINVALID_FLAG));
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env.close();
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// fails due to negative amount
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env(claw(alice, bob["USD"](-5)), ter(temBAD_AMOUNT));
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env.close();
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// fails due to zero amount
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env(claw(alice, bob["USD"](0)), ter(temBAD_AMOUNT));
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env.close();
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// fails because amount is in XRP
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env(claw(alice, XRP(10)), ter(temBAD_AMOUNT));
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env.close();
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// fails when `issuer` field in `amount` is not token holder
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// NOTE: we are using the `issuer` field for the token holder
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env(claw(alice, alice["USD"](5)), ter(temBAD_AMOUNT));
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env.close();
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// bob pays alice back, trustline has a balance of 0
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env(pay(bob, alice, USD(10)));
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env.close();
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// bob still owns the trustline that has 0 balance
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BEAST_EXPECT(ownerCount(env, alice) == 0);
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BEAST_EXPECT(ownerCount(env, bob) == 1);
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env.require(balance(bob, alice["USD"](0)));
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env.require(balance(alice, bob["USD"](0)));
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// clawback fails because because balance is 0
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env(claw(alice, bob["USD"](5)), ter(tecINSUFFICIENT_FUNDS));
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env.close();
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// set the limit to default, which should delete the trustline
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env(trust(bob, USD(0), 0));
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env.close();
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// bob no longer owns the trustline
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BEAST_EXPECT(ownerCount(env, alice) == 0);
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BEAST_EXPECT(ownerCount(env, bob) == 0);
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// clawback fails because trustline does not exist
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env(claw(alice, bob["USD"](5)), ter(tecNO_LINE));
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env.close();
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}
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}
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void
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testPermission(FeatureBitset features)
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{
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// Checks the tx submitter has the permission to clawback.
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// Exercises preclaim code
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testcase("Permission");
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using namespace test::jtx;
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// Clawing back from an non-existent account returns error
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{
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Env env(*this, features);
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Account alice{"alice"};
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Account bob{"bob"};
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// bob's account is not funded and does not exist
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env.fund(XRP(1000), alice);
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env.close();
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// alice sets asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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// bob, the token holder, does not exist
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env(claw(alice, bob["USD"](5)), ter(terNO_ACCOUNT));
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env.close();
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}
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// Test that trustline cannot be clawed by someone who is
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// not the issuer of the currency
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{
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Env env(*this, features);
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Account alice{"alice"};
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Account bob{"bob"};
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Account cindy{"cindy"};
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env.fund(XRP(1000), alice, bob, cindy);
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env.close();
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auto const USD = alice["USD"];
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// alice sets asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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// cindy sets asfAllowTrustLineClawback
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env(fset(cindy, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(cindy, asfAllowTrustLineClawback));
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// alice issues 1000 USD to bob
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env.trust(USD(1000), bob);
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env(pay(alice, bob, USD(1000)));
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env.close();
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env.require(balance(bob, alice["USD"](1000)));
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env.require(balance(alice, bob["USD"](-1000)));
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// cindy tries to claw from bob, and fails because trustline does
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// not exist
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env(claw(cindy, bob["USD"](200)), ter(tecNO_LINE));
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env.close();
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}
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// When a trustline is created between issuer and holder,
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// we must make sure the holder is unable to claw back from
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// the issuer by impersonating the issuer account.
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//
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// This must be tested bidirectionally for both accounts because the
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// issuer could be either the low or high account in the trustline
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// object
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{
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Env env(*this, features);
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Account alice{"alice"};
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Account bob{"bob"};
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env.fund(XRP(1000), alice, bob);
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env.close();
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auto const USD = alice["USD"];
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auto const CAD = bob["CAD"];
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// alice sets asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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// bob sets asfAllowTrustLineClawback
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env(fset(bob, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(bob, asfAllowTrustLineClawback));
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// alice issues 10 USD to bob.
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// bob then attempts to submit a clawback tx to claw USD from alice.
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// this must FAIL, because bob is not the issuer for this
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// trustline!!!
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{
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// bob creates a trustline with alice, and alice sends 10 USD to
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// bob
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env.trust(USD(1000), bob);
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env(pay(alice, bob, USD(10)));
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env.close();
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env.require(balance(bob, alice["USD"](10)));
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env.require(balance(alice, bob["USD"](-10)));
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// bob cannot claw back USD from alice because he's not the
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// issuer
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env(claw(bob, alice["USD"](5)), ter(tecNO_PERMISSION));
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env.close();
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}
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// bob issues 10 CAD to alice.
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// alice then attempts to submit a clawback tx to claw CAD from bob.
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// this must FAIL, because alice is not the issuer for this
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// trustline!!!
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{
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// alice creates a trustline with bob, and bob sends 10 CAD to
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// alice
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env.trust(CAD(1000), alice);
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env(pay(bob, alice, CAD(10)));
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env.close();
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env.require(balance(bob, alice["CAD"](-10)));
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env.require(balance(alice, bob["CAD"](10)));
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// alice cannot claw back CAD from bob because she's not the
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// issuer
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env(claw(alice, bob["CAD"](5)), ter(tecNO_PERMISSION));
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env.close();
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}
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}
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}
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void
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testEnabled(FeatureBitset features)
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{
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testcase("Enable clawback");
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using namespace test::jtx;
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// Test that alice is able to successfully clawback tokens from bob
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Env env(*this, features);
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Account alice{"alice"};
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Account bob{"bob"};
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env.fund(XRP(1000), alice, bob);
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env.close();
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auto const USD = alice["USD"];
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// alice sets asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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// alice issues 1000 USD to bob
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env.trust(USD(1000), bob);
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env(pay(alice, bob, USD(1000)));
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env.close();
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env.require(balance(bob, alice["USD"](1000)));
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env.require(balance(alice, bob["USD"](-1000)));
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// alice claws back 200 USD from bob
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env(claw(alice, bob["USD"](200)));
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env.close();
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// bob should have 800 USD left
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env.require(balance(bob, alice["USD"](800)));
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env.require(balance(alice, bob["USD"](-800)));
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// alice claws back 800 USD from bob again
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env(claw(alice, bob["USD"](800)));
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env.close();
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// trustline has a balance of 0
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env.require(balance(bob, alice["USD"](0)));
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env.require(balance(alice, bob["USD"](0)));
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}
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void
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testMultiLine(FeatureBitset features)
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{
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// Test scenarios where multiple trustlines are involved
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testcase("Multi line");
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using namespace test::jtx;
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// Both alice and bob issues their own "USD" to cindy.
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// When alice and bob tries to claw back, they will only
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// claw back from their respective trustline.
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{
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Env env(*this, features);
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Account alice{"alice"};
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Account bob{"bob"};
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Account cindy{"cindy"};
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env.fund(XRP(1000), alice, bob, cindy);
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env.close();
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// alice sets asfAllowTrustLineClawback
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env(fset(alice, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(alice, asfAllowTrustLineClawback));
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// bob sets asfAllowTrustLineClawback
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env(fset(bob, asfAllowTrustLineClawback));
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env.close();
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env.require(flags(bob, asfAllowTrustLineClawback));
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// alice sends 1000 USD to cindy
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env.trust(alice["USD"](1000), cindy);
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env(pay(alice, cindy, alice["USD"](1000)));
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env.close();
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// bob sends 1000 USD to cindy
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env.trust(bob["USD"](1000), cindy);
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env(pay(bob, cindy, bob["USD"](1000)));
|
|
env.close();
|
|
|
|
// alice claws back 200 USD from cindy
|
|
env(claw(alice, cindy["USD"](200)));
|
|
env.close();
|
|
|
|
// cindy has 800 USD left in alice's trustline after clawed by alice
|
|
env.require(balance(cindy, alice["USD"](800)));
|
|
env.require(balance(alice, cindy["USD"](-800)));
|
|
|
|
// cindy still has 1000 USD in bob's trustline
|
|
env.require(balance(cindy, bob["USD"](1000)));
|
|
env.require(balance(bob, cindy["USD"](-1000)));
|
|
|
|
// bob claws back 600 USD from cindy
|
|
env(claw(bob, cindy["USD"](600)));
|
|
env.close();
|
|
|
|
// cindy has 400 USD left in bob's trustline after clawed by bob
|
|
env.require(balance(cindy, bob["USD"](400)));
|
|
env.require(balance(bob, cindy["USD"](-400)));
|
|
|
|
// cindy still has 800 USD in alice's trustline
|
|
env.require(balance(cindy, alice["USD"](800)));
|
|
env.require(balance(alice, cindy["USD"](-800)));
|
|
}
|
|
|
|
// alice issues USD to both bob and cindy.
|
|
// when alice claws back from bob, only bob's USD balance is
|
|
// affected, and cindy's balance remains unchanged, and vice versa.
|
|
{
|
|
Env env(*this, features);
|
|
|
|
Account alice{"alice"};
|
|
Account bob{"bob"};
|
|
Account cindy{"cindy"};
|
|
|
|
env.fund(XRP(1000), alice, bob, cindy);
|
|
env.close();
|
|
|
|
auto const USD = alice["USD"];
|
|
|
|
// alice sets asfAllowTrustLineClawback
|
|
env(fset(alice, asfAllowTrustLineClawback));
|
|
env.close();
|
|
env.require(flags(alice, asfAllowTrustLineClawback));
|
|
|
|
// alice sends 600 USD to bob
|
|
env.trust(USD(1000), bob);
|
|
env(pay(alice, bob, USD(600)));
|
|
env.close();
|
|
|
|
env.require(balance(alice, bob["USD"](-600)));
|
|
env.require(balance(bob, alice["USD"](600)));
|
|
|
|
// alice sends 1000 USD to cindy
|
|
env.trust(USD(1000), cindy);
|
|
env(pay(alice, cindy, USD(1000)));
|
|
env.close();
|
|
|
|
env.require(balance(alice, cindy["USD"](-1000)));
|
|
env.require(balance(cindy, alice["USD"](1000)));
|
|
|
|
// alice claws back 500 USD from bob
|
|
env(claw(alice, bob["USD"](500)));
|
|
env.close();
|
|
|
|
// bob's balance is reduced
|
|
env.require(balance(alice, bob["USD"](-100)));
|
|
env.require(balance(bob, alice["USD"](100)));
|
|
|
|
// cindy's balance is unchanged
|
|
env.require(balance(alice, cindy["USD"](-1000)));
|
|
env.require(balance(cindy, alice["USD"](1000)));
|
|
|
|
// alice claws back 300 USD from cindy
|
|
env(claw(alice, cindy["USD"](300)));
|
|
env.close();
|
|
|
|
// bob's balance is unchanged
|
|
env.require(balance(alice, bob["USD"](-100)));
|
|
env.require(balance(bob, alice["USD"](100)));
|
|
|
|
// cindy's balance is reduced
|
|
env.require(balance(alice, cindy["USD"](-700)));
|
|
env.require(balance(cindy, alice["USD"](700)));
|
|
}
|
|
}
|
|
|
|
void
|
|
testBidirectionalLine(FeatureBitset features)
|
|
{
|
|
testcase("Bidirectional line");
|
|
using namespace test::jtx;
|
|
|
|
// Test when both alice and bob issues USD to each other.
|
|
// This scenario creates only one trustline.
|
|
// In this case, both alice and bob can be seen as the "issuer"
|
|
// and they can send however many USDs to each other.
|
|
// We test that only the person who has a negative balance from their
|
|
// perspective is allowed to clawback
|
|
Env env(*this, features);
|
|
|
|
Account alice{"alice"};
|
|
Account bob{"bob"};
|
|
|
|
env.fund(XRP(1000), alice, bob);
|
|
env.close();
|
|
|
|
// alice sets asfAllowTrustLineClawback
|
|
env(fset(alice, asfAllowTrustLineClawback));
|
|
env.close();
|
|
env.require(flags(alice, asfAllowTrustLineClawback));
|
|
|
|
// bob sets asfAllowTrustLineClawback
|
|
env(fset(bob, asfAllowTrustLineClawback));
|
|
env.close();
|
|
env.require(flags(bob, asfAllowTrustLineClawback));
|
|
|
|
// alice issues 1000 USD to bob
|
|
env.trust(alice["USD"](1000), bob);
|
|
env(pay(alice, bob, alice["USD"](1000)));
|
|
env.close();
|
|
|
|
BEAST_EXPECT(ownerCount(env, alice) == 0);
|
|
BEAST_EXPECT(ownerCount(env, bob) == 1);
|
|
|
|
// bob is the holder, and alice is the issuer
|
|
env.require(balance(bob, alice["USD"](1000)));
|
|
env.require(balance(alice, bob["USD"](-1000)));
|
|
|
|
// bob issues 1500 USD to alice
|
|
env.trust(bob["USD"](1500), alice);
|
|
env(pay(bob, alice, bob["USD"](1500)));
|
|
env.close();
|
|
|
|
BEAST_EXPECT(ownerCount(env, alice) == 1);
|
|
BEAST_EXPECT(ownerCount(env, bob) == 1);
|
|
|
|
// bob has negative 500 USD because bob issued 500 USD more than alice
|
|
// bob can now been seen as the issuer, while alice is the holder
|
|
env.require(balance(bob, alice["USD"](-500)));
|
|
env.require(balance(alice, bob["USD"](500)));
|
|
|
|
// At this point, both alice and bob are the issuers of USD
|
|
// and can send USD to each other through one trustline
|
|
|
|
// alice fails to clawback. Even though she is also an issuer,
|
|
// the trustline balance is positive from her perspective
|
|
env(claw(alice, bob["USD"](200)), ter(tecNO_PERMISSION));
|
|
env.close();
|
|
|
|
// bob is able to successfully clawback from alice because
|
|
// the trustline balance is negative from his perspective
|
|
env(claw(bob, alice["USD"](200)));
|
|
env.close();
|
|
|
|
env.require(balance(bob, alice["USD"](-300)));
|
|
env.require(balance(alice, bob["USD"](300)));
|
|
|
|
// alice pays bob 1000 USD
|
|
env(pay(alice, bob, alice["USD"](1000)));
|
|
env.close();
|
|
|
|
// bob's balance becomes positive from his perspective because
|
|
// alice issued more USD than the balance
|
|
env.require(balance(bob, alice["USD"](700)));
|
|
env.require(balance(alice, bob["USD"](-700)));
|
|
|
|
// bob is now the holder and fails to clawback
|
|
env(claw(bob, alice["USD"](200)), ter(tecNO_PERMISSION));
|
|
env.close();
|
|
|
|
// alice successfully claws back
|
|
env(claw(alice, bob["USD"](200)));
|
|
env.close();
|
|
|
|
env.require(balance(bob, alice["USD"](500)));
|
|
env.require(balance(alice, bob["USD"](-500)));
|
|
}
|
|
|
|
void
|
|
testDeleteDefaultLine(FeatureBitset features)
|
|
{
|
|
testcase("Delete default trustline");
|
|
using namespace test::jtx;
|
|
|
|
// If clawback results the trustline to be default,
|
|
// trustline should be automatically deleted
|
|
Env env(*this, features);
|
|
Account alice{"alice"};
|
|
Account bob{"bob"};
|
|
|
|
env.fund(XRP(1000), alice, bob);
|
|
env.close();
|
|
|
|
auto const USD = alice["USD"];
|
|
|
|
// alice sets asfAllowTrustLineClawback
|
|
env(fset(alice, asfAllowTrustLineClawback));
|
|
env.close();
|
|
env.require(flags(alice, asfAllowTrustLineClawback));
|
|
|
|
// alice issues 1000 USD to bob
|
|
env.trust(USD(1000), bob);
|
|
env(pay(alice, bob, USD(1000)));
|
|
env.close();
|
|
|
|
BEAST_EXPECT(ownerCount(env, alice) == 0);
|
|
BEAST_EXPECT(ownerCount(env, bob) == 1);
|
|
|
|
env.require(balance(bob, alice["USD"](1000)));
|
|
env.require(balance(alice, bob["USD"](-1000)));
|
|
|
|
// set limit to default,
|
|
env(trust(bob, USD(0), 0));
|
|
env.close();
|
|
|
|
BEAST_EXPECT(ownerCount(env, alice) == 0);
|
|
BEAST_EXPECT(ownerCount(env, bob) == 1);
|
|
|
|
// alice claws back full amount from bob, and should also delete
|
|
// trustline
|
|
env(claw(alice, bob["USD"](1000)));
|
|
env.close();
|
|
|
|
// bob no longer owns the trustline because it was deleted
|
|
BEAST_EXPECT(ownerCount(env, alice) == 0);
|
|
BEAST_EXPECT(ownerCount(env, bob) == 0);
|
|
}
|
|
|
|
void
|
|
testFrozenLine(FeatureBitset features)
|
|
{
|
|
testcase("Frozen trustline");
|
|
using namespace test::jtx;
|
|
|
|
// Claws back from frozen trustline
|
|
// and the trustline should remain frozen
|
|
Env env(*this, features);
|
|
Account alice{"alice"};
|
|
Account bob{"bob"};
|
|
|
|
env.fund(XRP(1000), alice, bob);
|
|
env.close();
|
|
|
|
auto const USD = alice["USD"];
|
|
|
|
// alice sets asfAllowTrustLineClawback
|
|
env(fset(alice, asfAllowTrustLineClawback));
|
|
env.close();
|
|
env.require(flags(alice, asfAllowTrustLineClawback));
|
|
|
|
// alice issues 1000 USD to bob
|
|
env.trust(USD(1000), bob);
|
|
env(pay(alice, bob, USD(1000)));
|
|
env.close();
|
|
|
|
env.require(balance(bob, alice["USD"](1000)));
|
|
env.require(balance(alice, bob["USD"](-1000)));
|
|
|
|
// freeze trustline
|
|
env(trust(alice, bob["USD"](0), tfSetFreeze));
|
|
env.close();
|
|
|
|
// alice claws back 200 USD from bob
|
|
env(claw(alice, bob["USD"](200)));
|
|
env.close();
|
|
|
|
// bob should have 800 USD left
|
|
env.require(balance(bob, alice["USD"](800)));
|
|
env.require(balance(alice, bob["USD"](-800)));
|
|
|
|
// trustline remains frozen
|
|
BEAST_EXPECT(getLineFreezeFlag(env, alice, bob, USD.currency));
|
|
}
|
|
|
|
void
|
|
testAmountExceedsAvailable(FeatureBitset features)
|
|
{
|
|
testcase("Amount exceeds available");
|
|
using namespace test::jtx;
|
|
|
|
// When alice tries to claw back an amount that is greater
|
|
// than what bob holds, only the max available balance is clawed
|
|
Env env(*this, features);
|
|
Account alice{"alice"};
|
|
Account bob{"bob"};
|
|
|
|
env.fund(XRP(1000), alice, bob);
|
|
env.close();
|
|
|
|
auto const USD = alice["USD"];
|
|
|
|
// alice sets asfAllowTrustLineClawback
|
|
env(fset(alice, asfAllowTrustLineClawback));
|
|
env.close();
|
|
env.require(flags(alice, asfAllowTrustLineClawback));
|
|
|
|
// alice issues 1000 USD to bob
|
|
env.trust(USD(1000), bob);
|
|
env(pay(alice, bob, USD(1000)));
|
|
env.close();
|
|
|
|
env.require(balance(bob, alice["USD"](1000)));
|
|
env.require(balance(alice, bob["USD"](-1000)));
|
|
|
|
// alice tries to claw back 2000 USD
|
|
env(claw(alice, bob["USD"](2000)));
|
|
env.close();
|
|
|
|
// check alice and bob's balance.
|
|
// alice was only able to claw back 1000 USD at maximum
|
|
env.require(balance(bob, alice["USD"](0)));
|
|
env.require(balance(alice, bob["USD"](0)));
|
|
|
|
// bob still owns the trustline because trustline is not in default
|
|
// state
|
|
BEAST_EXPECT(ownerCount(env, alice) == 0);
|
|
BEAST_EXPECT(ownerCount(env, bob) == 1);
|
|
|
|
// set limit to default,
|
|
env(trust(bob, USD(0), 0));
|
|
env.close();
|
|
|
|
// verify that bob's trustline was deleted
|
|
BEAST_EXPECT(ownerCount(env, alice) == 0);
|
|
BEAST_EXPECT(ownerCount(env, bob) == 0);
|
|
}
|
|
|
|
void
|
|
testTickets(FeatureBitset features)
|
|
{
|
|
testcase("Tickets");
|
|
using namespace test::jtx;
|
|
|
|
// Tests clawback with tickets
|
|
Env env(*this, features);
|
|
Account alice{"alice"};
|
|
Account bob{"bob"};
|
|
|
|
env.fund(XRP(1000), alice, bob);
|
|
env.close();
|
|
|
|
auto const USD = alice["USD"];
|
|
|
|
// alice sets asfAllowTrustLineClawback
|
|
env(fset(alice, asfAllowTrustLineClawback));
|
|
env.close();
|
|
env.require(flags(alice, asfAllowTrustLineClawback));
|
|
|
|
// alice issues 100 USD to bob
|
|
env.trust(USD(1000), bob);
|
|
env(pay(alice, bob, USD(100)));
|
|
env.close();
|
|
|
|
env.require(balance(bob, alice["USD"](100)));
|
|
env.require(balance(alice, bob["USD"](-100)));
|
|
|
|
// alice creates 10 tickets
|
|
std::uint32_t ticketCnt = 10;
|
|
std::uint32_t aliceTicketSeq{env.seq(alice) + 1};
|
|
env(ticket::create(alice, ticketCnt));
|
|
env.close();
|
|
std::uint32_t const aliceSeq{env.seq(alice)};
|
|
BEAST_EXPECT(ticketCount(env, alice) == ticketCnt);
|
|
BEAST_EXPECT(ownerCount(env, alice) == ticketCnt);
|
|
|
|
while (ticketCnt > 0)
|
|
{
|
|
// alice claws back 5 USD using a ticket
|
|
env(claw(alice, bob["USD"](5)), ticket::use(aliceTicketSeq++));
|
|
env.close();
|
|
|
|
ticketCnt--;
|
|
BEAST_EXPECT(ticketCount(env, alice) == ticketCnt);
|
|
BEAST_EXPECT(ownerCount(env, alice) == ticketCnt);
|
|
}
|
|
|
|
// alice clawed back 50 USD total, trustline has 50 USD remaining
|
|
env.require(balance(bob, alice["USD"](50)));
|
|
env.require(balance(alice, bob["USD"](-50)));
|
|
|
|
// Verify that the account sequence numbers did not advance.
|
|
BEAST_EXPECT(env.seq(alice) == aliceSeq);
|
|
}
|
|
|
|
void
|
|
testWithFeats(FeatureBitset features)
|
|
{
|
|
testAllowTrustLineClawbackFlag(features);
|
|
testValidation(features);
|
|
testPermission(features);
|
|
testEnabled(features);
|
|
testMultiLine(features);
|
|
testBidirectionalLine(features);
|
|
testDeleteDefaultLine(features);
|
|
testFrozenLine(features);
|
|
testAmountExceedsAvailable(features);
|
|
testTickets(features);
|
|
}
|
|
|
|
public:
|
|
void
|
|
run() override
|
|
{
|
|
using namespace test::jtx;
|
|
FeatureBitset const all{testable_amendments()};
|
|
|
|
testWithFeats(all - featureMPTokensV1);
|
|
testWithFeats(all);
|
|
}
|
|
};
|
|
|
|
BEAST_DEFINE_TESTSUITE(Clawback, app, xrpl);
|
|
} // namespace xrpl
|