text: // Copyright (c) 2012-2020 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <rpc/client.h>
  #include <rpc/server.h>
  #include <rpc/util.h>
  
  #include <core_io.h>
  #include <interfaces/chain.h>
  #include <node/context.h>
  #include <test/util/setup_common.h>
  #include <util/time.h>
  
  #include <any>
  
  #include <boost/algorithm/string.hpp>
  #include <boost/test/unit_test.hpp>
  
  #include <univalue.h>
  
  #include <rpc/blockchain.h>
  
  class RPCTestingSetup : public TestingSetup
  {
  public:
      UniValue CallRPC(std::string args);
  };
  
  UniValue RPCTestingSetup::CallRPC(std::string args)
  {
      std::vector<std::string> vArgs;
      boost::split(vArgs, args, boost::is_any_of(" \t"));
      std::string strMethod = vArgs[0];
      vArgs.erase(vArgs.begin());
      JSONRPCRequest request;
      request.context = &m_node;
      request.strMethod = strMethod;
      request.params = RPCConvertValues(strMethod, vArgs);
      if (RPCIsInWarmup(nullptr)) SetRPCWarmupFinished();
      try {
          UniValue result = tableRPC.execute(request);
          return result;
      }
      catch (const UniValue& objError) {
          throw std::runtime_error(find_value(objError, "message").get_str());
      }
  }
  
  
  BOOST_FIXTURE_TEST_SUITE(rpc_tests, RPCTestingSetup)
  
  BOOST_AUTO_TEST_CASE(rpc_rawparams)
  {
      // Test raw transaction API argument handling
      UniValue r;
  
      BOOST_CHECK_THROW(CallRPC("getrawtransaction"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("getrawtransaction not_hex"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("getrawtransaction a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed not_int"), std::runtime_error);
  
      BOOST_CHECK_THROW(CallRPC("createrawtransaction"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("createrawtransaction null null"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("createrawtransaction not_array"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("createrawtransaction {} {}"), std::runtime_error);
      BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [] {}"));
      BOOST_CHECK_THROW(CallRPC("createrawtransaction [] {} extra"), std::runtime_error);
  
      BOOST_CHECK_THROW(CallRPC("decoderawtransaction"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("decoderawtransaction null"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("decoderawtransaction DEADBEEF"), std::runtime_error);
      std::string rawtx = "0100000001a15d57094aa7a21a28cb20b59aab8fc7d1149a3bdbcddba9c622e4f5f6a99ece010000006c493046022100f93bb0e7d8db7bd46e40132d1f8242026e045f03a0efe71bbb8e3f475e970d790221009337cd7f1f929f00cc6ff01f03729b069a7c21b59b1736ddfee5db5946c5da8c0121033b9b137ee87d5a812d6f506efdd37f0affa7ffc310711c06c7f3e097c9447c52ffffffff0100e1f505000000001976a9140389035a9225b3839e2bbf32d826a1e222031fd888ac00000000";
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("decoderawtransaction ")+rawtx));
      BOOST_CHECK_EQUAL(find_value(r.get_obj(), "size").get_int(), 193);
      BOOST_CHECK_EQUAL(find_value(r.get_obj(), "version").get_int(), 1);
      BOOST_CHECK_EQUAL(find_value(r.get_obj(), "locktime").get_int(), 0);
      BOOST_CHECK_THROW(CallRPC(std::string("decoderawtransaction ")+rawtx+" extra"), std::runtime_error);
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("decoderawtransaction ")+rawtx+" false"));
      BOOST_CHECK_THROW(r = CallRPC(std::string("decoderawtransaction ")+rawtx+" false extra"), std::runtime_error);
  
      // Only check failure cases for sendrawtransaction, there's no network to send to...
      BOOST_CHECK_THROW(CallRPC("sendrawtransaction"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("sendrawtransaction null"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("sendrawtransaction DEADBEEF"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC(std::string("sendrawtransaction ")+rawtx+" extra"), std::runtime_error);
  }
  
  BOOST_AUTO_TEST_CASE(rpc_togglenetwork)
  {
      UniValue r;
  
      r = CallRPC("getnetworkinfo");
      bool netState = find_value(r.get_obj(), "networkactive").get_bool();
      BOOST_CHECK_EQUAL(netState, true);
  
      BOOST_CHECK_NO_THROW(CallRPC("setnetworkactive false"));
      r = CallRPC("getnetworkinfo");
      int numConnection = find_value(r.get_obj(), "connections").get_int();
      BOOST_CHECK_EQUAL(numConnection, 0);
  
      netState = find_value(r.get_obj(), "networkactive").get_bool();
      BOOST_CHECK_EQUAL(netState, false);
  
      BOOST_CHECK_NO_THROW(CallRPC("setnetworkactive true"));
      r = CallRPC("getnetworkinfo");
      netState = find_value(r.get_obj(), "networkactive").get_bool();
      BOOST_CHECK_EQUAL(netState, true);
  }
  
  BOOST_AUTO_TEST_CASE(rpc_createraw_op_return)
  {
      BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"68656c6c6f776f726c64\"}"));
  
      // Key not "data" (bad address)
      BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"somedata\":\"68656c6c6f776f726c64\"}"), std::runtime_error);
  
      // Bad hex encoding of data output
      BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"12345\"}"), std::runtime_error);
      BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"12345g\"}"), std::runtime_error);
  
      // Data 81 bytes long
      BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"010203040506070809101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081\"}"));
  }
  
  BOOST_AUTO_TEST_CASE(rpc_format_monetary_values)
  {
      BOOST_CHECK(ValueFromAmount(0LL).write() == "0.00000000");
      BOOST_CHECK(ValueFromAmount(1LL).write() == "0.00000001");
      BOOST_CHECK(ValueFromAmount(17622195LL).write() == "0.17622195");
      BOOST_CHECK(ValueFromAmount(50000000LL).write() == "0.50000000");
      BOOST_CHECK(ValueFromAmount(89898989LL).write() == "0.89898989");
      BOOST_CHECK(ValueFromAmount(100000000LL).write() == "1.00000000");
      BOOST_CHECK(ValueFromAmount(2099999999999990LL).write() == "20999999.99999990");
      BOOST_CHECK(ValueFromAmount(2099999999999999LL).write() == "20999999.99999999");
  
      BOOST_CHECK_EQUAL(ValueFromAmount(0).write(), "0.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount((COIN/10000)*123456789).write(), "12345.67890000");
      BOOST_CHECK_EQUAL(ValueFromAmount(-COIN).write(), "-1.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(-COIN/10).write(), "-0.10000000");
  
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*100000000).write(), "100000000.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*10000000).write(), "10000000.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*1000000).write(), "1000000.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*100000).write(), "100000.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*10000).write(), "10000.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*1000).write(), "1000.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*100).write(), "100.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN*10).write(), "10.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN).write(), "1.00000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/10).write(), "0.10000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/100).write(), "0.01000000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/1000).write(), "0.00100000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/10000).write(), "0.00010000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/100000).write(), "0.00001000");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/1000000).write(), "0.00000100");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/10000000).write(), "0.00000010");
      BOOST_CHECK_EQUAL(ValueFromAmount(COIN/100000000).write(), "0.00000001");
  
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::max()).write(), "92233720368.54775807");
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::max() - 1).write(), "92233720368.54775806");
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::max() - 2).write(), "92233720368.54775805");
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::max() - 3).write(), "92233720368.54775804");
      // ...
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::min() + 3).write(), "-92233720368.54775805");
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::min() + 2).write(), "-92233720368.54775806");
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::min() + 1).write(), "-92233720368.54775807");
      BOOST_CHECK_EQUAL(ValueFromAmount(std::numeric_limits<CAmount>::min()).write(), "-92233720368.54775808");
  }
  
  static UniValue ValueFromString(const std::string &str)
  {
      UniValue value;
      BOOST_CHECK(value.setNumStr(str));
      return value;
  }
  
  BOOST_AUTO_TEST_CASE(rpc_parse_monetary_values)
  {
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("-0.00000001")), UniValue);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0")), 0LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.00000000")), 0LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.00000001")), 1LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.17622195")), 17622195LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.5")), 50000000LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.50000000")), 50000000LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.89898989")), 89898989LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("1.00000000")), 100000000LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("20999999.9999999")), 2099999999999990LL);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("20999999.99999999")), 2099999999999999LL);
  
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("1e-8")), COIN/100000000);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.1e-7")), COIN/100000000);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.01e-6")), COIN/100000000);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.0000000000000000000000000000000000000000000000000000000000000000000000000001e+68")), COIN/100000000);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("10000000000000000000000000000000000000000000000000000000000000000e-64")), COIN);
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000e64")), COIN);
  
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("1e-9")), UniValue); //should fail
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("0.000000019")), UniValue); //should fail
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.00000001000000")), 1LL); //should pass, cut trailing 0
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("19e-9")), UniValue); //should fail
      BOOST_CHECK_EQUAL(AmountFromValue(ValueFromString("0.19e-6")), 19); //should pass, leading 0 is present
  
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("92233720368.54775808")), UniValue); //overflow error
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("1e+11")), UniValue); //overflow error
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("1e11")), UniValue); //overflow error signless
      BOOST_CHECK_THROW(AmountFromValue(ValueFromString("93e+9")), UniValue); //overflow error
  }
  
  BOOST_AUTO_TEST_CASE(json_parse_errors)
  {
      // Valid
      BOOST_CHECK_EQUAL(ParseNonRFCJSONValue("1.0").get_real(), 1.0);
      // Valid, with leading or trailing whitespace
      BOOST_CHECK_EQUAL(ParseNonRFCJSONValue(" 1.0").get_real(), 1.0);
      BOOST_CHECK_EQUAL(ParseNonRFCJSONValue("1.0 ").get_real(), 1.0);
  
      BOOST_CHECK_THROW(AmountFromValue(ParseNonRFCJSONValue(".19e-6")), std::runtime_error); //should fail, missing leading 0, therefore invalid JSON
      BOOST_CHECK_EQUAL(AmountFromValue(ParseNonRFCJSONValue("0.00000000000000000000000000000000000001e+30 ")), 1);
      // Invalid, initial garbage
      BOOST_CHECK_THROW(ParseNonRFCJSONValue("[1.0"), std::runtime_error);
      BOOST_CHECK_THROW(ParseNonRFCJSONValue("a1.0"), std::runtime_error);
      // Invalid, trailing garbage
      BOOST_CHECK_THROW(ParseNonRFCJSONValue("1.0sds"), std::runtime_error);
      BOOST_CHECK_THROW(ParseNonRFCJSONValue("1.0]"), std::runtime_error);
      // BLKH addresses should fail parsing
      BOOST_CHECK_THROW(ParseNonRFCJSONValue("175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W"), std::runtime_error);
      BOOST_CHECK_THROW(ParseNonRFCJSONValue("3J98t1WpEZ73CNmQviecrnyiWrnqRhWNL"), std::runtime_error);
  }
  
  BOOST_AUTO_TEST_CASE(rpc_ban)
  {
      BOOST_CHECK_NO_THROW(CallRPC(std::string("clearbanned")));
  
      UniValue r;
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban 127.0.0.0 add")));
      BOOST_CHECK_THROW(r = CallRPC(std::string("setban 127.0.0.0:9853")), std::runtime_error); //portnumber for setban not allowed
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      UniValue ar = r.get_array();
      UniValue o1 = ar[0].get_obj();
      UniValue adr = find_value(o1, "address");
      BOOST_CHECK_EQUAL(adr.get_str(), "127.0.0.0/32");
      BOOST_CHECK_NO_THROW(CallRPC(std::string("setban 127.0.0.0 remove")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      BOOST_CHECK_EQUAL(ar.size(), 0U);
  
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban 127.0.0.0/24 add 9907731200 true")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      o1 = ar[0].get_obj();
      adr = find_value(o1, "address");
      int64_t banned_until{find_value(o1, "banned_until").get_int64()};
      BOOST_CHECK_EQUAL(adr.get_str(), "127.0.0.0/24");
      BOOST_CHECK_EQUAL(banned_until, 9907731200); // absolute time check
  
      BOOST_CHECK_NO_THROW(CallRPC(std::string("clearbanned")));
  
      auto now = 10'000s;
      SetMockTime(now);
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban 127.0.0.0/24 add 200")));
      SetMockTime(now += 2s);
      const int64_t time_remaining_expected{198};
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      o1 = ar[0].get_obj();
      adr = find_value(o1, "address");
      banned_until = find_value(o1, "banned_until").get_int64();
      const int64_t ban_created{find_value(o1, "ban_created").get_int64()};
      const int64_t ban_duration{find_value(o1, "ban_duration").get_int64()};
      const int64_t time_remaining{find_value(o1, "time_remaining").get_int64()};
      BOOST_CHECK_EQUAL(adr.get_str(), "127.0.0.0/24");
      BOOST_CHECK_EQUAL(banned_until, time_remaining_expected + now.count());
      BOOST_CHECK_EQUAL(ban_duration, banned_until - ban_created);
      BOOST_CHECK_EQUAL(time_remaining, time_remaining_expected);
  
      // must throw an exception because 127.0.0.1 is in already banned subnet range
      BOOST_CHECK_THROW(r = CallRPC(std::string("setban 127.0.0.1 add")), std::runtime_error);
  
      BOOST_CHECK_NO_THROW(CallRPC(std::string("setban 127.0.0.0/24 remove")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      BOOST_CHECK_EQUAL(ar.size(), 0U);
  
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban 127.0.0.0/255.255.0.0 add")));
      BOOST_CHECK_THROW(r = CallRPC(std::string("setban 127.0.1.1 add")), std::runtime_error);
  
      BOOST_CHECK_NO_THROW(CallRPC(std::string("clearbanned")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      BOOST_CHECK_EQUAL(ar.size(), 0U);
  
  
      BOOST_CHECK_THROW(r = CallRPC(std::string("setban test add")), std::runtime_error); //invalid IP
  
      //IPv6 tests
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban FE80:0000:0000:0000:0202:B3FF:FE1E:8329 add")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      o1 = ar[0].get_obj();
      adr = find_value(o1, "address");
      BOOST_CHECK_EQUAL(adr.get_str(), "fe80::202:b3ff:fe1e:8329/128");
  
      BOOST_CHECK_NO_THROW(CallRPC(std::string("clearbanned")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban 2001:db8::/ffff:fffc:0:0:0:0:0:0 add")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      o1 = ar[0].get_obj();
      adr = find_value(o1, "address");
      BOOST_CHECK_EQUAL(adr.get_str(), "2001:db8::/30");
  
      BOOST_CHECK_NO_THROW(CallRPC(std::string("clearbanned")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban 2001:4d48:ac57:400:cacf:e9ff:fe1d:9c63/128 add")));
      BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
      ar = r.get_array();
      o1 = ar[0].get_obj();
      adr = find_value(o1, "address");
      BOOST_CHECK_EQUAL(adr.get_str(), "2001:4d48:ac57:400:cacf:e9ff:fe1d:9c63/128");
  }
  
  BOOST_AUTO_TEST_CASE(rpc_convert_values_generatetoaddress)
  {
      UniValue result;
  
      BOOST_CHECK_NO_THROW(result = RPCConvertValues("generatetoaddress", {"101", "mkESjLZW66TmHhiFX8MCaBjrhZ543PPh9a"}));
      BOOST_CHECK_EQUAL(result[0].get_int(), 101);
      BOOST_CHECK_EQUAL(result[1].get_str(), "mkESjLZW66TmHhiFX8MCaBjrhZ543PPh9a");
  
      BOOST_CHECK_NO_THROW(result = RPCConvertValues("generatetoaddress", {"101", "mhMbmE2tE9xzJYCV9aNC8jKWN31vtGrguU"}));
      BOOST_CHECK_EQUAL(result[0].get_int(), 101);
      BOOST_CHECK_EQUAL(result[1].get_str(), "mhMbmE2tE9xzJYCV9aNC8jKWN31vtGrguU");
  
      BOOST_CHECK_NO_THROW(result = RPCConvertValues("generatetoaddress", {"1", "mkESjLZW66TmHhiFX8MCaBjrhZ543PPh9a", "9"}));
      BOOST_CHECK_EQUAL(result[0].get_int(), 1);
      BOOST_CHECK_EQUAL(result[1].get_str(), "mkESjLZW66TmHhiFX8MCaBjrhZ543PPh9a");
      BOOST_CHECK_EQUAL(result[2].get_int(), 9);
  
      BOOST_CHECK_NO_THROW(result = RPCConvertValues("generatetoaddress", {"1", "mhMbmE2tE9xzJYCV9aNC8jKWN31vtGrguU", "9"}));
      BOOST_CHECK_EQUAL(result[0].get_int(), 1);
      BOOST_CHECK_EQUAL(result[1].get_str(), "mhMbmE2tE9xzJYCV9aNC8jKWN31vtGrguU");
      BOOST_CHECK_EQUAL(result[2].get_int(), 9);
  }
  
  BOOST_AUTO_TEST_CASE(rpc_getblockstats_calculate_percentiles_by_weight)
  {
      int64_t total_weight = 200;
      std::vector<std::pair<CAmount, int64_t>> feerates;
      CAmount result[NUM_GETBLOCKSTATS_PERCENTILES] = { 0 };
  
      for (int64_t i = 0; i < 100; i++) {
          feerates.emplace_back(std::make_pair(1 ,1));
      }
  
      for (int64_t i = 0; i < 100; i++) {
          feerates.emplace_back(std::make_pair(2 ,1));
      }
  
      CalculatePercentilesByWeight(result, feerates, total_weight);
      BOOST_CHECK_EQUAL(result[0], 1);
      BOOST_CHECK_EQUAL(result[1], 1);
      BOOST_CHECK_EQUAL(result[2], 1);
      BOOST_CHECK_EQUAL(result[3], 2);
      BOOST_CHECK_EQUAL(result[4], 2);
  
      // Test with more pairs, and two pairs overlapping 2 percentiles.
      total_weight = 100;
      CAmount result2[NUM_GETBLOCKSTATS_PERCENTILES] = { 0 };
      feerates.clear();
  
      feerates.emplace_back(std::make_pair(1, 9));
      feerates.emplace_back(std::make_pair(2 , 16)); //10th + 25th percentile
      feerates.emplace_back(std::make_pair(4 ,50)); //50th + 75th percentile
      feerates.emplace_back(std::make_pair(5 ,10));
      feerates.emplace_back(std::make_pair(9 ,15));  // 90th percentile
  
      CalculatePercentilesByWeight(result2, feerates, total_weight);
  
      BOOST_CHECK_EQUAL(result2[0], 2);
      BOOST_CHECK_EQUAL(result2[1], 2);
      BOOST_CHECK_EQUAL(result2[2], 4);
      BOOST_CHECK_EQUAL(result2[3], 4);
      BOOST_CHECK_EQUAL(result2[4], 9);
  
      // Same test as above, but one of the percentile-overlapping pairs is split in 2.
      total_weight = 100;
      CAmount result3[NUM_GETBLOCKSTATS_PERCENTILES] = { 0 };
      feerates.clear();
  
      feerates.emplace_back(std::make_pair(1, 9));
      feerates.emplace_back(std::make_pair(2 , 11)); // 10th percentile
      feerates.emplace_back(std::make_pair(2 , 5)); // 25th percentile
      feerates.emplace_back(std::make_pair(4 ,50)); //50th + 75th percentile
      feerates.emplace_back(std::make_pair(5 ,10));
      feerates.emplace_back(std::make_pair(9 ,15)); // 90th percentile
  
      CalculatePercentilesByWeight(result3, feerates, total_weight);
  
      BOOST_CHECK_EQUAL(result3[0], 2);
      BOOST_CHECK_EQUAL(result3[1], 2);
      BOOST_CHECK_EQUAL(result3[2], 4);
      BOOST_CHECK_EQUAL(result3[3], 4);
      BOOST_CHECK_EQUAL(result3[4], 9);
  
      // Test with one transaction spanning all percentiles.
      total_weight = 104;
      CAmount result4[NUM_GETBLOCKSTATS_PERCENTILES] = { 0 };
      feerates.clear();
  
      feerates.emplace_back(std::make_pair(1, 100));
      feerates.emplace_back(std::make_pair(2, 1));
      feerates.emplace_back(std::make_pair(3, 1));
      feerates.emplace_back(std::make_pair(3, 1));
      feerates.emplace_back(std::make_pair(999999, 1));
  
      CalculatePercentilesByWeight(result4, feerates, total_weight);
  
      for (int64_t i = 0; i < NUM_GETBLOCKSTATS_PERCENTILES; i++) {
          BOOST_CHECK_EQUAL(result4[i], 1);
      }
  }
  
  BOOST_AUTO_TEST_CASE(help_example)
  {
      // test different argument types
      const RPCArgList& args = {{"foo", "bar"}, {"b", true}, {"n", 1}};
      BOOST_CHECK_EQUAL(HelpExampleCliNamed("test", args), "> blinkhash-cli -named test foo=bar b=true n=1\n");
      BOOST_CHECK_EQUAL(HelpExampleRpcNamed("test", args), "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", \"id\": \"curltest\", \"method\": \"test\", \"params\": {\"foo\":\"bar\",\"b\":true,\"n\":1}}' -H 'content-type: text/plain;' http://127.0.0.1:9854/\n");
  
      // test shell escape
      BOOST_CHECK_EQUAL(HelpExampleCliNamed("test", {{"foo", "b'ar"}}), "> blinkhash-cli -named test foo='b'''ar'\n");
      BOOST_CHECK_EQUAL(HelpExampleCliNamed("test", {{"foo", "b\"ar"}}), "> blinkhash-cli -named test foo='b\"ar'\n");
      BOOST_CHECK_EQUAL(HelpExampleCliNamed("test", {{"foo", "b ar"}}), "> blinkhash-cli -named test foo='b ar'\n");
  
      // test object params
      UniValue obj_value(UniValue::VOBJ);
      obj_value.pushKV("foo", "bar");
      obj_value.pushKV("b", false);
      obj_value.pushKV("n", 1);
      BOOST_CHECK_EQUAL(HelpExampleCliNamed("test", {{"name", obj_value}}), "> blinkhash-cli -named test name='{\"foo\":\"bar\",\"b\":false,\"n\":1}'\n");
      BOOST_CHECK_EQUAL(HelpExampleRpcNamed("test", {{"name", obj_value}}), "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", \"id\": \"curltest\", \"method\": \"test\", \"params\": {\"name\":{\"foo\":\"bar\",\"b\":false,\"n\":1}}}' -H 'content-type: text/plain;' http://127.0.0.1:9854/\n");
  
      // test array params
      UniValue arr_value(UniValue::VARR);
      arr_value.push_back("bar");
      arr_value.push_back(false);
      arr_value.push_back(1);
      BOOST_CHECK_EQUAL(HelpExampleCliNamed("test", {{"name", arr_value}}), "> blinkhash-cli -named test name='[\"bar\",false,1]'\n");
      BOOST_CHECK_EQUAL(HelpExampleRpcNamed("test", {{"name", arr_value}}), "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", \"id\": \"curltest\", \"method\": \"test\", \"params\": {\"name\":[\"bar\",false,1]}}' -H 'content-type: text/plain;' http://127.0.0.1:9854/\n");
  
      // test types don't matter for shell
      BOOST_CHECK_EQUAL(HelpExampleCliNamed("foo", {{"arg", true}}), HelpExampleCliNamed("foo", {{"arg", "true"}}));
  
      // test types matter for Rpc
      BOOST_CHECK_NE(HelpExampleRpcNamed("foo", {{"arg", true}}), HelpExampleRpcNamed("foo", {{"arg", "true"}}));
  }
  
  BOOST_AUTO_TEST_SUITE_END()
  