//------------------------------------------------------------------------------
/*
    This file is part of rippled: https://github.com/ripple/rippled
    Copyright (c) 2012-2015 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 <ripple/basics/contract.h>
#include <ripple/core/Config.h>
#include <ripple/core/ConfigSections.h>
#include <ripple/basics/TestSuite.h>
#include <boost/filesystem.hpp>
#include <boost/format.hpp>
#include <fstream>
#include <iostream>

namespace ripple {
namespace detail {
std::string configContents (std::string const& dbPath,
    std::string const& validatorsFile)
{
    static boost::format configContentsTemplate (R"rippleConfig(
[server]
port_rpc
port_peer
port_wss_admin

[port_rpc]
port = 5005
ip = 127.0.0.1
admin = 127.0.0.1
protocol = https

[port_peer]
port = 51235
ip = 0.0.0.0
protocol = peer

[port_wss_admin]
port = 6006
ip = 127.0.0.1
admin = 127.0.0.1
protocol = wss

#[port_ws_public]
#port = 5005
#ip = 127.0.0.1
#protocol = wss

#-------------------------------------------------------------------------------

[node_size]
medium

# This is primary persistent datastore for rippled.  This includes transaction
# metadata, account states, and ledger headers.  Helpful information can be
# found here: https://ripple.com/wiki/NodeBackEnd
# delete old ledgers while maintaining at least 2000. Do not require an
# external administrative command to initiate deletion.
[node_db]
type=memory
path=/Users/dummy/ripple/config/db/rocksdb
open_files=2000
filter_bits=12
cache_mb=256
file_size_mb=8
file_size_mult=2

%1%

%2%

# This needs to be an absolute directory reference, not a relative one.
# Modify this value as required.
[debug_logfile]
/Users/dummy/ripple/config/log/debug.log

[sntp_servers]
time.windows.com
time.apple.com
time.nist.gov
pool.ntp.org

# Where to find some other servers speaking the Ripple protocol.
#
[ips]
r.ripple.com 51235

# Turn down default logging to save disk space in the long run.
# Valid values here are trace, debug, info, warning, error, and fatal
[rpc_startup]
{ "command": "log_level", "severity": "warning" }

# Defaults to 1 ("yes") so that certificates will be validated. To allow the use
# of self-signed certificates for development or internal use, set to 0 ("no").
[ssl_verify]
0

[sqdb]
backend=sqlite
)rippleConfig");

    std::string dbPathSection =
        dbPath.empty () ? "" : "[database_path]\n" + dbPath;
    std::string valFileSection =
        validatorsFile.empty () ? "" : "[validators_file]\n" + validatorsFile;
    return boost::str (
        configContentsTemplate % dbPathSection % valFileSection);
}

/**
   Write a config file and remove when done.
 */
class ConfigGuard
{
private:
    bool rmSubDir_{false};

protected:
    using path = boost::filesystem::path;
    path subDir_;
    beast::unit_test::suite& test_;

    auto rmDir (path const& toRm)
    {
        if (is_directory (toRm) && is_empty (toRm))
            remove (toRm);
        else
            test_.log << "Expected " << toRm.string ()
                      << " to be an empty existing directory." << std::endl;
    };

public:
    ConfigGuard (beast::unit_test::suite& test, std::string subDir)
        : subDir_ (std::move (subDir))
        , test_ (test)
    {
        using namespace boost::filesystem;
        {
            if (!exists (subDir_))
            {
                create_directory (subDir_);
                rmSubDir_ = true;
            }
            else if (is_directory (subDir_))
                rmSubDir_ = false;
            else
            {
                // Cannot run the test. Someone created a file where we want to
                // put our directory
                Throw<std::runtime_error> (
                    "Cannot create directory: " + subDir_.string ());
            }
        }
    }
    ~ConfigGuard ()
    {
        try
        {
            using namespace boost::filesystem;

            if (rmSubDir_)
                rmDir (subDir_);
            else
                test_.log << "Skipping rm dir: "
                          << subDir_.string () << std::endl;
        }
        catch (std::exception& e)
        {
            // if we throw here, just let it die.
            test_.log << "Error in ~ConfigGuard: " << e.what () << std::endl;
        };
    }
};

/**
   Write a rippled config file and remove when done.
 */
class RippledCfgGuard : ConfigGuard
{
private:
    path configFile_;
    path dataDir_;

    bool rmDataDir_{false};

    Config config_;

public:
    RippledCfgGuard (beast::unit_test::suite& test,
        std::string subDir, std::string const& dbPath,
            std::string const& validatorsFile)
        : ConfigGuard (test, std::move (subDir)), dataDir_ (dbPath)
    {
        if (dbPath.empty ())
            dataDir_ = subDir_ / path (Config::databaseDirName);

        configFile_ = subDir_ / path (Config::configFileName);

        if (!exists (configFile_))
        {
            std::ofstream o (configFile_.string ());
            o << configContents (dbPath, validatorsFile);
        }
        else
        {
            Throw<std::runtime_error> (
                "Refusing to overwrite existing config file: " +
                    configFile_.string ());
        }

        rmDataDir_ = !exists (dataDir_);
        config_.setup (configFile_.string (), /*bQuiet*/ false,
            /* bSilent */ false, /* bStandalone */ false);
    }
    Config& config ()
    {
        return config_;
    }
    std::string configFile() const
    {
        return configFile_.string();
    }
    bool dataDirExists () const
    {
        return boost::filesystem::is_directory (dataDir_);
    }
    bool configFileExists () const
    {
        return boost::filesystem::exists (configFile_);
    }
    ~RippledCfgGuard ()
    {
        try
        {
            using namespace boost::filesystem;
            if (!boost::filesystem::exists (configFile_))
                test_.log << "Expected " << configFile_.string ()
                          << " to be an existing file." << std::endl;
            else
                remove (configFile_.string ());

            if (rmDataDir_)
                rmDir (dataDir_);
            else
                test_.log << "Skipping rm dir: "
                          << dataDir_.string () << std::endl;
        }
        catch (std::exception& e)
        {
            // if we throw here, just let it die.
            test_.log << "Error in ~RippledCfgGuard: "
                      << e.what () << std::endl;
        };
    }
};

std::string valFileContents (boost::optional<int> const& quorum)
{
    static boost::format configContentsTemplate (R"rippleConfig(
[validators]
n949f75evCHwgyP4fPVgaHqNHxUVN15PsJEZ3B3HnXPcPjcZAoy7
n9MD5h24qrQqiyBC8aeqqCWvpiBiYQ3jxSr91uiDvmrkyHRdYLUj
n9L81uNCaPgtUJfaHh89gmdvXKAmSt5Gdsw2g1iPWaPkAHW5Nm4C
n9KiYM9CgngLvtRCQHZwgC2gjpdaZcCcbt3VboxiNFcKuwFVujzS
n9LdgEtkmGB9E2h3K4Vp7iGUaKuq23Zr32ehxiU8FWY7xoxbWTSA

[validator_keys]
nHUhG1PgAG8H8myUENypM35JgfqXAKNQvRVVAFDRzJrny5eZN8d5
nHBu9PTL9dn2GuZtdW4U2WzBwffyX9qsQCd9CNU4Z5YG3PQfViM8
nHUPDdcdb2Y5DZAJne4c2iabFuAP3F34xZUgYQT2NH7qfkdapgnz

%1%

)rippleConfig");

    std::string quorumSection =
        quorum ? "[validation_quorum]\n" + to_string(*quorum) : "";
    return boost::str (
        configContentsTemplate % quorumSection);
}

/**
   Write a validators.txt file and remove when done.
 */
class ValidatorsTxtGuard : ConfigGuard
{
private:
    path validatorsFile_;

public:
    ValidatorsTxtGuard (beast::unit_test::suite& test,
        std::string subDir, std::string const& validatorsFileName,
            boost::optional<int> const& quorum)
        : ConfigGuard (test, std::move (subDir))
    {
        using namespace boost::filesystem;
        validatorsFile_ = current_path () / subDir_ / path (
            validatorsFileName.empty () ? Config::validatorsFileName :
            validatorsFileName);

        if (!exists (validatorsFile_))
        {
            std::ofstream o (validatorsFile_.string ());
            o << valFileContents (quorum);
        }
        else
        {
            Throw<std::runtime_error> (
                "Refusing to overwrite existing config file: " +
                    validatorsFile_.string ());
        }
    }
    bool validatorsFileExists () const
    {
        return boost::filesystem::exists (validatorsFile_);
    }
    std::string validatorsFile () const
    {
        return validatorsFile_.string ();
    }
    ~ValidatorsTxtGuard ()
    {
        try
        {
            using namespace boost::filesystem;
            if (!boost::filesystem::exists (validatorsFile_))
                test_.log << "Expected " << validatorsFile_.string ()
                          << " to be an existing file." << std::endl;
            else
                remove (validatorsFile_.string ());
        }
        catch (std::exception& e)
        {
            // if we throw here, just let it die.
            test_.log << "Error in ~ValidatorsTxtGuard: "
                      << e.what () << std::endl;
        };
    }
};
}  // detail
class Config_test final : public TestSuite
{
private:
    using path = boost::filesystem::path;

public:
    void testLegacy ()
    {
        testcase ("legacy");

        Config c;

        std::string toLoad(R"rippleConfig(
[server]
port_rpc
port_peer
port_wss_admin

[ssl_verify]
0

[validation_quorum]
3
)rippleConfig");

        c.loadFromString (toLoad);

        BEAST_EXPECT(c.legacy ("ssl_verify") == "0");
        expectException ([&c] {c.legacy ("server");});  // not a single line

        // set a legacy value
        BEAST_EXPECT(c.legacy ("not_in_file") == "");
        c.legacy ("not_in_file", "new_value");
        BEAST_EXPECT(c.legacy ("not_in_file") == "new_value");
    }
    void testDbPath ()
    {
        testcase ("database_path");

        using namespace boost::filesystem;
        {
            boost::format cc ("[database_path]\n%1%\n");

            auto const cwd = current_path ();
            path const dataDirRel ("test_data_dir");
            path const dataDirAbs (cwd / dataDirRel);
            {
                // Dummy test - do we get back what we put in
                Config c;
                c.loadFromString (boost::str (cc % dataDirAbs.string ()));
                BEAST_EXPECT(c.legacy ("database_path") == dataDirAbs.string ());
            }
            {
                // Rel paths should convert to abs paths
                Config c;
                c.loadFromString (boost::str (cc % dataDirRel.string ()));
                BEAST_EXPECT(c.legacy ("database_path") == dataDirAbs.string ());
            }
            {
                // No db section.
                // N.B. Config::setup will give database_path a default,
                // load will not.
                Config c;
                c.loadFromString ("");
                BEAST_EXPECT(c.legacy ("database_path") == "");
            }
        }
        {
            // read from file absolute path
            auto const cwd = current_path ();
            path const dataDirRel ("test_data_dir");
            path const dataDirAbs (cwd / path ("test_db") / dataDirRel);
            detail::RippledCfgGuard g (*this, "test_db", dataDirAbs.string (), "");
            auto& c (g.config ());
            BEAST_EXPECT(g.dataDirExists ());
            BEAST_EXPECT(g.configFileExists ());
            BEAST_EXPECT(c.legacy ("database_path") == dataDirAbs.string ());
        }
        {
            // read from file relative path
            std::string const dbPath ("my_db");
            detail::RippledCfgGuard g (*this, "test_db", dbPath, "");
            auto& c (g.config ());
            std::string const nativeDbPath = absolute (path (dbPath)).string ();
            BEAST_EXPECT(g.dataDirExists ());
            BEAST_EXPECT(g.configFileExists ());
            BEAST_EXPECT(c.legacy ("database_path") == nativeDbPath);
        }
        {
            // read from file no path
            detail::RippledCfgGuard g (*this, "test_db", "", "");
            auto& c (g.config ());
            std::string const nativeDbPath =
                absolute (path ("test_db") /
                          path (Config::databaseDirName))
                    .string ();
            BEAST_EXPECT(g.dataDirExists ());
            BEAST_EXPECT(g.configFileExists ());
            BEAST_EXPECT(c.legacy ("database_path") == nativeDbPath);
        }
    }

    void testValidatorsFile ()
    {
        testcase ("validators_file");

        using namespace boost::filesystem;
        {
            // load should throw for missing specified validators file
            Config c;
            boost::format cc ("[validators_file]\n%1%\n");
            std::string error;
            std::string const missingPath = "/no/way/this/path/exists";
            auto const expectedError =
                "The file specified in [validators_file] does not exist: " +
                missingPath;
            try {
                c.loadFromString (boost::str (cc % missingPath));
            } catch (std::runtime_error& e) {
                error = e.what();
            }
            BEAST_EXPECT(error == expectedError);
        }
        {
            // load should throw for invalid [validators_file]
            int const quorum = 3;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.cfg", quorum);
            Config c;
            path const invalidFile = current_path () / "test_cfg";
            boost::format cc ("[validators_file]\n%1%\n");
            std::string error;
            auto const expectedError =
                "Invalid file specified in [validators_file]: " +
                invalidFile.string ();
            try {
                c.loadFromString (boost::str (cc % invalidFile.string ()));
            } catch (std::runtime_error& e) {
                error = e.what();
            }
            BEAST_EXPECT(error == expectedError);
        }
        {
            // load validators and quorum from config
            Config c;
            std::string toLoad(R"rippleConfig(
[validators]
n949f75evCHwgyP4fPVgaHqNHxUVN15PsJEZ3B3HnXPcPjcZAoy7
n9MD5h24qrQqiyBC8aeqqCWvpiBiYQ3jxSr91uiDvmrkyHRdYLUj
n9L81uNCaPgtUJfaHh89gmdvXKAmSt5Gdsw2g1iPWaPkAHW5Nm4C

[validator_keys]
nHUhG1PgAG8H8myUENypM35JgfqXAKNQvRVVAFDRzJrny5eZN8d5
nHBu9PTL9dn2GuZtdW4U2WzBwffyX9qsQCd9CNU4Z5YG3PQfViM8

[validation_quorum]
4
)rippleConfig");
            c.loadFromString (toLoad);
            BEAST_EXPECT(c.legacy ("validators_file").empty ());
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 3);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 2);
            BEAST_EXPECT(c.VALIDATION_QUORUM == 4);
        }
        {
            // load from specified [validators_file] absolute path
            int const quorum = 3;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.cfg", quorum);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            Config c;
            boost::format cc ("[validators_file]\n%1%\n");
            c.loadFromString (boost::str (cc % vtg.validatorsFile ()));
            BEAST_EXPECT(c.legacy ("validators_file") == vtg.validatorsFile ());
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 5);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 3);
            BEAST_EXPECT(c.VALIDATION_QUORUM == quorum);
        }
        {
            // load from specified [validators_file] file name
            // in config directory
            int const quorum = 3;
            std::string const valFileName = "validators.txt";
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", valFileName, quorum);
            detail::RippledCfgGuard rcg (
                *this, "test_cfg", "", valFileName);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            BEAST_EXPECT(rcg.configFileExists ());
            auto& c (rcg.config ());
            BEAST_EXPECT(c.legacy ("validators_file") == valFileName);
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 5);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 3);
            BEAST_EXPECT(c.VALIDATION_QUORUM == quorum);
        }
        {
            // load from specified [validators_file] relative path
            // to config directory
            int const quorum = 3;
            std::string const valFilePath = "../test_cfg/validators.txt";
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.txt", quorum);
            detail::RippledCfgGuard rcg (
                *this, "test_cfg", "", valFilePath);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            BEAST_EXPECT(rcg.configFileExists ());
            auto& c (rcg.config ());
            BEAST_EXPECT(c.legacy ("validators_file") == valFilePath);
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 5);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 3);
            BEAST_EXPECT(c.VALIDATION_QUORUM == quorum);
        }
        {
            // load from validators file in default location
            int const quorum = 3;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.txt", quorum);
            detail::RippledCfgGuard rcg (*this, "test_cfg", "", "");
            BEAST_EXPECT(vtg.validatorsFileExists ());
            BEAST_EXPECT(rcg.configFileExists ());
            auto& c (rcg.config ());
            BEAST_EXPECT(c.legacy ("validators_file").empty ());
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 5);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 3);
            BEAST_EXPECT(c.VALIDATION_QUORUM == quorum);
        }
        {
            // load from specified [validators_file] instead
            // of default location
            int const quorum = 3;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.cfg", quorum);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            detail::ValidatorsTxtGuard vtgDefault (
                *this, "test_cfg", "validators.txt", 4);
            BEAST_EXPECT(vtgDefault.validatorsFileExists ());
            detail::RippledCfgGuard rcg (
                *this, "test_cfg", "", vtg.validatorsFile ());
            BEAST_EXPECT(rcg.configFileExists ());
            auto& c (rcg.config ());
            BEAST_EXPECT(c.legacy ("validators_file") == vtg.validatorsFile ());
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 5);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 3);
            BEAST_EXPECT(c.VALIDATION_QUORUM == quorum);
        }
        {
            // do not load quorum from validators file if in config
            boost::format cc (R"rippleConfig(
[validators_file]
%1%

[validation_quorum]
4
)rippleConfig");
            int const quorum = 3;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.cfg", quorum);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            Config c;
            c.loadFromString (boost::str (cc % vtg.validatorsFile ()));
            BEAST_EXPECT(c.legacy ("validators_file") == vtg.validatorsFile ());
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 5);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 3);
            BEAST_EXPECT(c.VALIDATION_QUORUM == 4);
        }
        {
            // load validators from both config and validators file
            boost::format cc (R"rippleConfig(
[validators_file]
%1%

[validators]
n949f75evCHwgyP4fPVgaHqNHxUVN15PsJEZ3B3HnXPcPjcZAoy7
n9MD5h24qrQqiyBC8aeqqCWvpiBiYQ3jxSr91uiDvmrkyHRdYLUj
n9L81uNCaPgtUJfaHh89gmdvXKAmSt5Gdsw2g1iPWaPkAHW5Nm4C
n9KiYM9CgngLvtRCQHZwgC2gjpdaZcCcbt3VboxiNFcKuwFVujzS
n9LdgEtkmGB9E2h3K4Vp7iGUaKuq23Zr32ehxiU8FWY7xoxbWTSA

[validator_keys]
nHB1X37qrniVugfQcuBTAjswphC1drx7QjFFojJPZwKHHnt8kU7v
nHUkAWDR4cB8AgPg7VXMX6et8xRTQb2KJfgv1aBEXozwrawRKgMB

)rippleConfig");
            int const quorum = 3;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.cfg", quorum);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            Config c;
            c.loadFromString (boost::str (cc % vtg.validatorsFile ()));
            BEAST_EXPECT(c.legacy ("validators_file") == vtg.validatorsFile ());
            BEAST_EXPECT(c.section (SECTION_VALIDATORS).values ().size () == 10);
            BEAST_EXPECT(c.section (SECTION_VALIDATOR_KEYS).values ().size () == 5);
            BEAST_EXPECT(c.VALIDATION_QUORUM == quorum);
        }
        {
            // load should throw if [validators] and [validator_keys] are
            // missing from rippled cfg and validators file
            Config c;
            boost::format cc ("[validators_file]\n%1%\n");
            std::string error;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.cfg", boost::none);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            auto const expectedError =
                "The file specified in [validators_file] does not contain a "
                "[validators] or [validator_keys] section: " +
                vtg.validatorsFile ();
            std::ofstream o (vtg.validatorsFile ());
            o << "[validation_quorum]\n3\n";
            try {
                c.loadFromString (boost::str (cc % vtg.validatorsFile ()));
            } catch (std::runtime_error& e) {
                error = e.what();
            }
            BEAST_EXPECT(error == expectedError);
        }
        {
            // load should throw if [validation_quorum] is
            // missing from rippled cfg and validators file
            Config c;
            boost::format cc ("[validators_file]\n%1%\n");
            std::string error;
            detail::ValidatorsTxtGuard vtg (
                *this, "test_cfg", "validators.cfg", boost::none);
            BEAST_EXPECT(vtg.validatorsFileExists ());
            auto const expectedError =
                "The file specified in [validators_file] does not contain a "
                "[validation_quorum] section: " + vtg.validatorsFile ();
            try {
                c.loadFromString (boost::str (cc % vtg.validatorsFile ()));
            } catch (std::runtime_error& e) {
                error = e.what();
            }
            BEAST_EXPECT(error == expectedError);
        }
    }

    void testSetup(bool explicitPath)
    {
        detail::RippledCfgGuard cfg(*this, "testSetup",
            explicitPath ? "test_db" : "", "");
        /* ConfigGuard has a Config object that gets loaded on construction,
            but Config::setup is not reentrant, so we need a fresh config
            for every test case, so ignore it.
        */
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ false,
                /* bSilent */ false, /* bStandalone */ false);
            BEAST_EXPECT(!config.quiet());
            BEAST_EXPECT(!config.silent());
            BEAST_EXPECT(!config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 256);
            BEAST_EXPECT(!config.legacy("database_path").empty());
        }
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ true,
                /* bSilent */ false, /* bStandalone */ false);
            BEAST_EXPECT(config.quiet());
            BEAST_EXPECT(!config.silent());
            BEAST_EXPECT(!config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 256);
            BEAST_EXPECT(!config.legacy("database_path").empty());
        }
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ false,
                /* bSilent */ true, /* bStandalone */ false);
            BEAST_EXPECT(config.quiet());
            BEAST_EXPECT(config.silent());
            BEAST_EXPECT(!config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 256);
            BEAST_EXPECT(!config.legacy("database_path").empty());
        }
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ true,
                /* bSilent */ true, /* bStandalone */ false);
            BEAST_EXPECT(config.quiet());
            BEAST_EXPECT(config.silent());
            BEAST_EXPECT(!config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 256);
            BEAST_EXPECT(!config.legacy("database_path").empty());
        }
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ false,
                /* bSilent */ false, /* bStandalone */ true);
            BEAST_EXPECT(!config.quiet());
            BEAST_EXPECT(!config.silent());
            BEAST_EXPECT(config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 0);
            BEAST_EXPECT(config.legacy("database_path").empty() == !explicitPath);
        }
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ true,
                /* bSilent */ false, /* bStandalone */ true);
            BEAST_EXPECT(config.quiet());
            BEAST_EXPECT(!config.silent());
            BEAST_EXPECT(config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 0);
            BEAST_EXPECT(config.legacy("database_path").empty() == !explicitPath);
        }
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ false,
                /* bSilent */ true, /* bStandalone */ true);
            BEAST_EXPECT(config.quiet());
            BEAST_EXPECT(config.silent());
            BEAST_EXPECT(config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 0);
            BEAST_EXPECT(config.legacy("database_path").empty() == !explicitPath);
        }
        {
            Config config;
            config.setup(cfg.configFile(), /*bQuiet*/ true,
                /* bSilent */ true, /* bStandalone */ true);
            BEAST_EXPECT(config.quiet());
            BEAST_EXPECT(config.silent());
            BEAST_EXPECT(config.standalone());
            BEAST_EXPECT(config.LEDGER_HISTORY == 0);
            BEAST_EXPECT(config.legacy("database_path").empty() == !explicitPath);
        }
    }

    void run ()
    {
        testLegacy ();
        testDbPath ();
        testValidatorsFile ();
        testSetup (false);
        testSetup (true);
    }
};

BEAST_DEFINE_TESTSUITE (Config, core, ripple);

}  // ripple