Env.h

//------------------------------------------------------------------------------
/*
    This file is part of rippled: https://github.com/ripple/rippled
    Copyright (c) 2012, 2013 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.
*/
//==============================================================================
 
#ifndef RIPPLE_TEST_JTX_ENV_H_INCLUDED
#define RIPPLE_TEST_JTX_ENV_H_INCLUDED
 
#include <test/jtx/Account.h>
#include <test/jtx/amount.h>
#include <test/jtx/envconfig.h>
#include <test/jtx/JTx.h>
#include <test/jtx/require.h>
#include <test/jtx/tags.h>
#include <test/jtx/AbstractClient.h>
#include <test/jtx/ManualTimeKeeper.h>
#include <test/unit_test/SuiteJournal.h>
#include <ripple/app/main/Application.h>
#include <ripple/app/ledger/Ledger.h>
#include <ripple/app/ledger/OpenLedger.h>
#include <ripple/app/paths/Pathfinder.h>
#include <ripple/basics/chrono.h>
#include <ripple/basics/Log.h>
#include <ripple/core/Config.h>
#include <ripple/json/json_value.h>
#include <ripple/json/to_string.h>
#include <ripple/ledger/CachedSLEs.h>
#include <ripple/protocol/Feature.h>
#include <ripple/protocol/Indexes.h>
#include <ripple/protocol/Issue.h>
#include <ripple/protocol/STAmount.h>
#include <ripple/protocol/STObject.h>
#include <ripple/protocol/STTx.h>
#include <functional>
#include <string>
#include <tuple>
#include <ripple/beast/cxx17/type_traits.h> // <type_traits>
#include <utility>
#include <unordered_map>
#include <vector>
 
 
namespace ripple {
namespace test {
namespace jtx {
 
template <class... Args>
std::array<Account, 1 + sizeof...(Args)>
noripple (Account const& account, Args const&... args)
{
    return {{account, args...}};
}
 
inline
FeatureBitset
supported_amendments()
{
    static const FeatureBitset ids = []{
        auto const& sa = ripple::detail::supportedAmendments();
        std::vector<uint256> feats;
        feats.reserve(sa.size());
        for (auto const& s : sa)
        {
            if (auto const f = getRegisteredFeature(s))
                feats.push_back(*f);
            else
                Throw<std::runtime_error> ("Unknown feature: " + s + "  in supportedAmendments.");
        }
        return FeatureBitset(feats);
    }();
    return ids;
}
 
//------------------------------------------------------------------------------
 
class SuiteLogs : public Logs
{
    beast::unit_test::suite& suite_;
 
public:
    explicit
    SuiteLogs(beast::unit_test::suite& suite)
        : Logs (beast::severities::kError)
        , suite_(suite)
    {
    }
 
    ~SuiteLogs() override = default;
 
    std::unique_ptr<beast::Journal::Sink>
    makeSink(std::string const& partition,
        beast::severities::Severity threshold) override
    {
        return std::make_unique<SuiteJournalSink>(
            partition, threshold, suite_);
    }
};
 
//------------------------------------------------------------------------------
 
class Env
{
public:
    beast::unit_test::suite& test;
 
    Account const& master = Account::master;
 
private:
    struct AppBundle
    {
        Application* app = nullptr;
        std::unique_ptr<Application> owned;
        ManualTimeKeeper* timeKeeper = nullptr;
        std::thread thread;
        std::unique_ptr<AbstractClient> client;
 
        AppBundle() = default;
        AppBundle (beast::unit_test::suite& suite,
            std::unique_ptr<Config> config,
            std::unique_ptr<Logs> logs);
        ~AppBundle();
    };
 
    AppBundle bundle_;
 
public:
    beast::Journal const journal;
 
    Env() = delete;
    Env& operator= (Env const&) = delete;
    Env (Env const&) = delete;
 
    // VFALCO Could wrap the suite::log in a Journal here
    Env (beast::unit_test::suite& suite_,
            std::unique_ptr<Config> config,
            FeatureBitset features,
            std::unique_ptr<Logs> logs = nullptr)
        : test (suite_)
        , bundle_ (
            suite_,
            std::move(config),
            logs ? std::move(logs) : std::make_unique<SuiteLogs>(suite_))
        , journal {bundle_.app->journal ("Env")}
    {
        memoize(Account::master);
        Pathfinder::initPathTable();
        foreachFeature(
            features, [& appFeats = app().config().features](uint256 const& f) {
                appFeats.insert(f);
            });
    }
 
    Env (beast::unit_test::suite& suite_,
            FeatureBitset features)
        : Env(suite_, envconfig(), features)
    {
    }
 
    Env (beast::unit_test::suite& suite_,
        std::unique_ptr<Config> config,
        std::unique_ptr<Logs> logs = nullptr)
        : Env(suite_, std::move(config),
            supported_amendments(), std::move(logs))
    {
    }
 
    Env (beast::unit_test::suite& suite_)
        : Env(suite_, envconfig())
    {
    }
 
    virtual ~Env() = default;
 
    Application&
    app()
    {
        return *bundle_.app;
    }
 
    Application const&
    app() const
    {
        return *bundle_.app;
    }
 
    ManualTimeKeeper&
    timeKeeper()
    {
        return *bundle_.timeKeeper;
    }
 
    NetClock::time_point
    now()
    {
        return timeKeeper().now();
    }
 
    AbstractClient&
    client()
    {
        return *bundle_.client;
    }
 
    template<class... Args>
    Json::Value
    rpc(std::unordered_map<std::string, std::string> const& headers,
        std::string const& cmd,
        Args&&... args);
 
    template<class... Args>
    Json::Value
    rpc(std::string const& cmd, Args&&... args);
 
    std::shared_ptr<OpenView const>
    current() const
    {
        return app().openLedger().current();
    }
 
    std::shared_ptr<ReadView const>
    closed();
 
    void
    close (NetClock::time_point closeTime,
        boost::optional<std::chrono::milliseconds> consensusDelay = boost::none);
 
    template <class Rep, class Period>
    void
    close (std::chrono::duration<
        Rep, Period> const& elapsed)
    {
        // VFALCO Is this the correct time?
        close (now() + elapsed);
    }
 
    void
    close()
    {
        // VFALCO Is this the correct time?
        close (std::chrono::seconds(5));
    }
 
    void
    trace (int howMany = -1)
    {
        trace_ = howMany;
    }
 
    void
    notrace ()
    {
        trace_ = 0;
    }
 
    void
    disable_sigs()
    {
        app().checkSigs(false);
    }
 
    void
    memoize (Account const& account);
 
    Account const&
    lookup (AccountID const& id) const;
 
    Account const&
    lookup (std::string const& base58ID) const;
    PrettyAmount
    balance (Account const& account) const;
 
    std::uint32_t
    seq (Account const& account) const;
 
    // VFALCO NOTE This should return a unit-less amount
    PrettyAmount
    balance (Account const& account,
        Issue const& issue) const;
 
    std::shared_ptr<SLE const>
    le (Account const& account) const;
 
    std::shared_ptr<SLE const>
    le (Keylet const& k) const;
 
    template <class JsonValue,
        class... FN>
    JTx
    jt (JsonValue&& jv, FN const&... fN)
    {
        JTx jt(std::forward<JsonValue>(jv));
        invoke(jt, fN...);
        autofill(jt);
        jt.stx = st(jt);
        return jt;
    }
 
    template <class JsonValue,
        class... FN>
    Json::Value
    json (JsonValue&&jv, FN const&... fN)
    {
        auto tj = jt(
            std::forward<JsonValue>(jv),
                fN...);
        return std::move(tj.jv);
    }
 
    template <class... Args>
    void
    require (Args const&... args)
    {
        jtx::required(args...)(*this);
    }
 
    static
    std::pair<TER, bool>
    parseResult(Json::Value const& jr);
 
    virtual
    void
    submit (JTx const& jt);
 
    void
    sign_and_submit(JTx const& jt, Json::Value params = Json::nullValue);
 
    void
    postconditions(JTx const& jt, TER ter, bool didApply);
 
    template <class JsonValue, class... FN>
    void
    apply (JsonValue&& jv, FN const&... fN)
    {
        submit(jt(std::forward<
            JsonValue>(jv), fN...));
    }
 
    template <class JsonValue,
        class... FN>
    void
    operator()(JsonValue&& jv, FN const&... fN)
    {
        apply(std::forward<
            JsonValue>(jv), fN...);
    }
    TER
    ter() const
    {
        return ter_;
    }
 
    std::shared_ptr<STObject const>
    meta();
 
    std::shared_ptr<STTx const>
    tx() const;
 
    void
    enableFeature(uint256 const feature);
 
private:
    void
    fund (bool setDefaultRipple,
        STAmount const& amount,
            Account const& account);
 
    void
    fund_arg (STAmount const& amount,
        Account const& account)
    {
        fund (true, amount, account);
    }
 
    template <std::size_t N>
    void
    fund_arg (STAmount const& amount,
        std::array<Account, N> const& list)
    {
        for (auto const& account : list)
            fund (false, amount, account);
    }
public:
 
    template<class Arg, class... Args>
    void
    fund (STAmount const& amount,
        Arg const& arg, Args const&... args)
    {
        fund_arg (amount, arg);
        if constexpr (sizeof...(args) > 0)
            fund(amount, args...);
    }
 
    void
    trust (STAmount const& amount,
        Account const& account);
 
    template<class... Accounts>
    void
    trust (STAmount const& amount, Account const& to0,
        Account const& to1, Accounts const&... toN)
    {
        trust(amount, to0);
        trust(amount, to1, toN...);
    }
protected:
    int trace_ = 0;
    TestStopwatch stopwatch_;
    uint256 txid_;
    TER ter_ = tesSUCCESS;
 
    Json::Value
    do_rpc(std::vector<std::string> const& args,
        std::unordered_map<std::string, std::string> const& headers = {});
 
    void
    autofill_sig (JTx& jt);
 
    virtual
    void
    autofill (JTx& jt);
 
    std::shared_ptr<STTx const>
    st (JTx const& jt);
 
    // Invoke funclets on stx
    // Note: The STTx may not be modified
    template <class... FN>
    void
    invoke (STTx& stx, FN const&... fN)
    {
        (fN(*this, stx),...);
    }
 
    // Invoke funclets on jt
    template <class... FN>
    void
    invoke (JTx& jt, FN const&... fN)
    {
        (fN(*this, jt),...);
    }
 
    // Map of account IDs to Account
    std::unordered_map<
        AccountID, Account> map_;
};
 
template<class... Args>
Json::Value
Env::rpc(std::unordered_map<std::string, std::string> const& headers,
    std::string const& cmd,
    Args&&... args)
{
    return do_rpc(std::vector<std::string>{cmd, std::forward<Args>(args)...},
        headers);
}
 
template<class... Args>
Json::Value
Env::rpc(std::string const& cmd, Args&&... args)
{
    return rpc(std::unordered_map<std::string, std::string>(), cmd,
        std::forward<Args>(args)...);
}
 
} // jtx
} // test
} // ripple
 
#endif