text: // Copyright (c) 2011-2017 The Kazucoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <util.h>
  
  #include <clientversion.h>
  #include <primitives/transaction.h>
  #include <sync.h>
  #include <utilstrencodings.h>
  #include <utilmoneystr.h>
  #include <test/test_kazucoin.h>
  
  #include <stdint.h>
  #include <vector>
  #ifndef WIN32
  #include <signal.h>
  #include <sys/types.h>
  #include <sys/wait.h>
  #endif
  
  #include <boost/test/unit_test.hpp>
  
  BOOST_FIXTURE_TEST_SUITE(util_tests, BasicTestingSetup)
  
  BOOST_AUTO_TEST_CASE(util_criticalsection)
  {
      CCriticalSection cs;
  
      do {
          LOCK(cs);
          break;
  
          BOOST_ERROR("break was swallowed!");
      } while(0);
  
      do {
          TRY_LOCK(cs, lockTest);
          if (lockTest)
              break;
  
          BOOST_ERROR("break was swallowed!");
      } while(0);
  }
  
  static const unsigned char ParseHex_expected[65] = {
      0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, 0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7,
      0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6, 0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde,
      0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, 0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12,
      0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d,
      0x5f
  };
  BOOST_AUTO_TEST_CASE(util_ParseHex)
  {
      std::vector<unsigned char> result;
      std::vector<unsigned char> expected(ParseHex_expected, ParseHex_expected + sizeof(ParseHex_expected));
      // Basic test vector
      result = ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f");
      BOOST_CHECK_EQUAL_COLLECTIONS(result.begin(), result.end(), expected.begin(), expected.end());
  
      // Spaces between bytes must be supported
      result = ParseHex("12 34 56 78");
      BOOST_CHECK(result.size() == 4 && result[0] == 0x12 && result[1] == 0x34 && result[2] == 0x56 && result[3] == 0x78);
  
      // Leading space must be supported (used in BerkeleyEnvironment::Salvage)
      result = ParseHex(" 89 34 56 78");
      BOOST_CHECK(result.size() == 4 && result[0] == 0x89 && result[1] == 0x34 && result[2] == 0x56 && result[3] == 0x78);
  
      // Stop parsing at invalid value
      result = ParseHex("1234 invalid 1234");
      BOOST_CHECK(result.size() == 2 && result[0] == 0x12 && result[1] == 0x34);
  }
  
  BOOST_AUTO_TEST_CASE(util_HexStr)
  {
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_expected, ParseHex_expected + sizeof(ParseHex_expected)),
          "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f");
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_expected, ParseHex_expected + 5, true),
          "04 67 8a fd b0");
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_expected + sizeof(ParseHex_expected),
                 ParseHex_expected + sizeof(ParseHex_expected)),
          "");
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_expected + sizeof(ParseHex_expected),
                 ParseHex_expected + sizeof(ParseHex_expected), true),
          "");
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_expected, ParseHex_expected),
          "");
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_expected, ParseHex_expected, true),
          "");
  
      std::vector<unsigned char> ParseHex_vec(ParseHex_expected, ParseHex_expected + 5);
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_vec, true),
          "04 67 8a fd b0");
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_vec.rbegin(), ParseHex_vec.rend()),
          "b0fd8a6704"
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(ParseHex_vec.rbegin(), ParseHex_vec.rend(), true),
          "b0 fd 8a 67 04"
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(std::reverse_iterator<const uint8_t *>(ParseHex_expected),
                 std::reverse_iterator<const uint8_t *>(ParseHex_expected)),
          ""
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(std::reverse_iterator<const uint8_t *>(ParseHex_expected),
                 std::reverse_iterator<const uint8_t *>(ParseHex_expected), true),
          ""
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(std::reverse_iterator<const uint8_t *>(ParseHex_expected + 1),
                 std::reverse_iterator<const uint8_t *>(ParseHex_expected)),
          "04"
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(std::reverse_iterator<const uint8_t *>(ParseHex_expected + 1),
                 std::reverse_iterator<const uint8_t *>(ParseHex_expected), true),
          "04"
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(std::reverse_iterator<const uint8_t *>(ParseHex_expected + 5),
                 std::reverse_iterator<const uint8_t *>(ParseHex_expected)),
          "b0fd8a6704"
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(std::reverse_iterator<const uint8_t *>(ParseHex_expected + 5),
                 std::reverse_iterator<const uint8_t *>(ParseHex_expected), true),
          "b0 fd 8a 67 04"
      );
  
      BOOST_CHECK_EQUAL(
          HexStr(std::reverse_iterator<const uint8_t *>(ParseHex_expected + 65),
                 std::reverse_iterator<const uint8_t *>(ParseHex_expected)),
          "5f1df16b2b704c8a578d0bbaf74d385cde12c11ee50455f3c438ef4c3fbcf649b6de611feae06279a60939e028a8d65c10b73071a6f16719274855feb0fd8a6704"
      );
  }
  
  
  BOOST_AUTO_TEST_CASE(util_FormatISO8601DateTime)
  {
      BOOST_CHECK_EQUAL(FormatISO8601DateTime(1317425777), "2011-09-30T23:36:17Z");
  }
  
  BOOST_AUTO_TEST_CASE(util_FormatISO8601Date)
  {
      BOOST_CHECK_EQUAL(FormatISO8601Date(1317425777), "2011-09-30");
  }
  
  BOOST_AUTO_TEST_CASE(util_FormatISO8601Time)
  {
      BOOST_CHECK_EQUAL(FormatISO8601Time(1317425777), "23:36:17Z");
  }
  
  struct TestArgsManager : public ArgsManager
  {
      TestArgsManager() { m_network_only_args.clear(); }
      std::map<std::string, std::vector<std::string> >& GetOverrideArgs() { return m_override_args; }
      std::map<std::string, std::vector<std::string> >& GetConfigArgs() { return m_config_args; }
      void ReadConfigString(const std::string str_config)
      {
          std::istringstream streamConfig(str_config);
          {
              LOCK(cs_args);
              m_config_args.clear();
          }
          std::string error;
          ReadConfigStream(streamConfig, error);
      }
      void SetNetworkOnlyArg(const std::string arg)
      {
          LOCK(cs_args);
          m_network_only_args.insert(arg);
      }
      void SetupArgs(int argv, const char* args[])
      {
          for (int i = 0; i < argv; ++i) {
              AddArg(args[i], "", false, OptionsCategory::OPTIONS);
          }
      }
  };
  
  BOOST_AUTO_TEST_CASE(util_ParseParameters)
  {
      TestArgsManager testArgs;
      const char* avail_args[] = {"-a", "-b", "-ccc", "-d"};
      const char *argv_test[] = {"-ignored", "-a", "-b", "-ccc=argument", "-ccc=multiple", "f", "-d=e"};
  
      std::string error;
      testArgs.SetupArgs(4, avail_args);
      testArgs.ParseParameters(0, (char**)argv_test, error);
      BOOST_CHECK(testArgs.GetOverrideArgs().empty() && testArgs.GetConfigArgs().empty());
  
      testArgs.ParseParameters(1, (char**)argv_test, error);
      BOOST_CHECK(testArgs.GetOverrideArgs().empty() && testArgs.GetConfigArgs().empty());
  
      testArgs.ParseParameters(7, (char**)argv_test, error);
      // expectation: -ignored is ignored (program name argument),
      // -a, -b and -ccc end up in map, -d ignored because it is after
      // a non-option argument (non-GNU option parsing)
      BOOST_CHECK(testArgs.GetOverrideArgs().size() == 3 && testArgs.GetConfigArgs().empty());
      BOOST_CHECK(testArgs.IsArgSet("-a") && testArgs.IsArgSet("-b") && testArgs.IsArgSet("-ccc")
                  && !testArgs.IsArgSet("f") && !testArgs.IsArgSet("-d"));
      BOOST_CHECK(testArgs.GetOverrideArgs().count("-a") && testArgs.GetOverrideArgs().count("-b") && testArgs.GetOverrideArgs().count("-ccc")
                  && !testArgs.GetOverrideArgs().count("f") && !testArgs.GetOverrideArgs().count("-d"));
  
      BOOST_CHECK(testArgs.GetOverrideArgs()["-a"].size() == 1);
      BOOST_CHECK(testArgs.GetOverrideArgs()["-a"].front() == "");
      BOOST_CHECK(testArgs.GetOverrideArgs()["-ccc"].size() == 2);
      BOOST_CHECK(testArgs.GetOverrideArgs()["-ccc"].front() == "argument");
      BOOST_CHECK(testArgs.GetOverrideArgs()["-ccc"].back() == "multiple");
      BOOST_CHECK(testArgs.GetArgs("-ccc").size() == 2);
  }
  
  BOOST_AUTO_TEST_CASE(util_GetBoolArg)
  {
      TestArgsManager testArgs;
      const char* avail_args[] = {"-a", "-b", "-c", "-d", "-e", "-f"};
      const char *argv_test[] = {
          "ignored", "-a", "-nob", "-c=0", "-d=1", "-e=false", "-f=true"};
      std::string error;
      testArgs.SetupArgs(6, avail_args);
      testArgs.ParseParameters(7, (char**)argv_test, error);
  
      // Each letter should be set.
      for (char opt : "abcdef")
          BOOST_CHECK(testArgs.IsArgSet({'-', opt}) || !opt);
  
      // Nothing else should be in the map
      BOOST_CHECK(testArgs.GetOverrideArgs().size() == 6 &&
                  testArgs.GetConfigArgs().empty());
  
      // The -no prefix should get stripped on the way in.
      BOOST_CHECK(!testArgs.IsArgSet("-nob"));
  
      // The -b option is flagged as negated, and nothing else is
      BOOST_CHECK(testArgs.IsArgNegated("-b"));
      BOOST_CHECK(!testArgs.IsArgNegated("-a"));
  
      // Check expected values.
      BOOST_CHECK(testArgs.GetBoolArg("-a", false) == true);
      BOOST_CHECK(testArgs.GetBoolArg("-b", true) == false);
      BOOST_CHECK(testArgs.GetBoolArg("-c", true) == false);
      BOOST_CHECK(testArgs.GetBoolArg("-d", false) == true);
      BOOST_CHECK(testArgs.GetBoolArg("-e", true) == false);
      BOOST_CHECK(testArgs.GetBoolArg("-f", true) == false);
  }
  
  BOOST_AUTO_TEST_CASE(util_GetBoolArgEdgeCases)
  {
      // Test some awful edge cases that hopefully no user will ever exercise.
      TestArgsManager testArgs;
  
      // Params test
      const char* avail_args[] = {"-foo", "-bar"};
      const char *argv_test[] = {"ignored", "-nofoo", "-foo", "-nobar=0"};
      testArgs.SetupArgs(2, avail_args);
      std::string error;
      testArgs.ParseParameters(4, (char**)argv_test, error);
  
      // This was passed twice, second one overrides the negative setting.
      BOOST_CHECK(!testArgs.IsArgNegated("-foo"));
      BOOST_CHECK(testArgs.GetArg("-foo", "xxx") == "");
  
      // A double negative is a positive, and not marked as negated.
      BOOST_CHECK(!testArgs.IsArgNegated("-bar"));
      BOOST_CHECK(testArgs.GetArg("-bar", "xxx") == "1");
  
      // Config test
      const char *conf_test = "nofoo=1\nfoo=1\nnobar=0\n";
      testArgs.ParseParameters(1, (char**)argv_test, error);
      testArgs.ReadConfigString(conf_test);
  
      // This was passed twice, second one overrides the negative setting,
      // and the value.
      BOOST_CHECK(!testArgs.IsArgNegated("-foo"));
      BOOST_CHECK(testArgs.GetArg("-foo", "xxx") == "1");
  
      // A double negative is a positive, and does not count as negated.
      BOOST_CHECK(!testArgs.IsArgNegated("-bar"));
      BOOST_CHECK(testArgs.GetArg("-bar", "xxx") == "1");
  
      // Combined test
      const char *combo_test_args[] = {"ignored", "-nofoo", "-bar"};
      const char *combo_test_conf = "foo=1\nnobar=1\n";
      testArgs.ParseParameters(3, (char**)combo_test_args, error);
      testArgs.ReadConfigString(combo_test_conf);
  
      // Command line overrides, but doesn't erase old setting
      BOOST_CHECK(testArgs.IsArgNegated("-foo"));
      BOOST_CHECK(testArgs.GetArg("-foo", "xxx") == "0");
      BOOST_CHECK(testArgs.GetArgs("-foo").size() == 0);
  
      // Command line overrides, but doesn't erase old setting
      BOOST_CHECK(!testArgs.IsArgNegated("-bar"));
      BOOST_CHECK(testArgs.GetArg("-bar", "xxx") == "");
      BOOST_CHECK(testArgs.GetArgs("-bar").size() == 1
                  && testArgs.GetArgs("-bar").front() == "");
  }
  
  BOOST_AUTO_TEST_CASE(util_ReadConfigStream)
  {
      const char *str_config =
         "a=\n"
         "b=1\n"
         "ccc=argument\n"
         "ccc=multiple\n"
         "d=e\n"
         "nofff=1\n"
         "noggg=0\n"
         "h=1\n"
         "noh=1\n"
         "noi=1\n"
         "i=1\n"
         "sec1.ccc=extend1\n"
         "\n"
         "[sec1]\n"
         "ccc=extend2\n"
         "d=eee\n"
         "h=1\n"
         "[sec2]\n"
         "ccc=extend3\n"
         "iii=2\n";
  
      TestArgsManager test_args;
      const char* avail_args[] = {"-a", "-b", "-ccc", "-d", "-e", "-fff", "-ggg", "-h", "-i", "-iii"};
      test_args.SetupArgs(10, avail_args);
  
      test_args.ReadConfigString(str_config);
      // expectation: a, b, ccc, d, fff, ggg, h, i end up in map
      // so do sec1.ccc, sec1.d, sec1.h, sec2.ccc, sec2.iii
  
      BOOST_CHECK(test_args.GetOverrideArgs().empty());
      BOOST_CHECK(test_args.GetConfigArgs().size() == 13);
  
      BOOST_CHECK(test_args.GetConfigArgs().count("-a")
                  && test_args.GetConfigArgs().count("-b")
                  && test_args.GetConfigArgs().count("-ccc")
                  && test_args.GetConfigArgs().count("-d")
                  && test_args.GetConfigArgs().count("-fff")
                  && test_args.GetConfigArgs().count("-ggg")
                  && test_args.GetConfigArgs().count("-h")
                  && test_args.GetConfigArgs().count("-i")
                 );
      BOOST_CHECK(test_args.GetConfigArgs().count("-sec1.ccc")
                  && test_args.GetConfigArgs().count("-sec1.h")
                  && test_args.GetConfigArgs().count("-sec2.ccc")
                  && test_args.GetConfigArgs().count("-sec2.iii")
                 );
  
      BOOST_CHECK(test_args.IsArgSet("-a")
                  && test_args.IsArgSet("-b")
                  && test_args.IsArgSet("-ccc")
                  && test_args.IsArgSet("-d")
                  && test_args.IsArgSet("-fff")
                  && test_args.IsArgSet("-ggg")
                  && test_args.IsArgSet("-h")
                  && test_args.IsArgSet("-i")
                  && !test_args.IsArgSet("-zzz")
                  && !test_args.IsArgSet("-iii")
                 );
  
      BOOST_CHECK(test_args.GetArg("-a", "xxx") == ""
                  && test_args.GetArg("-b", "xxx") == "1"
                  && test_args.GetArg("-ccc", "xxx") == "argument"
                  && test_args.GetArg("-d", "xxx") == "e"
                  && test_args.GetArg("-fff", "xxx") == "0"
                  && test_args.GetArg("-ggg", "xxx") == "1"
                  && test_args.GetArg("-h", "xxx") == "0"
                  && test_args.GetArg("-i", "xxx") == "1"
                  && test_args.GetArg("-zzz", "xxx") == "xxx"
                  && test_args.GetArg("-iii", "xxx") == "xxx"
                 );
  
      for (bool def : {false, true}) {
          BOOST_CHECK(test_args.GetBoolArg("-a", def)
                       && test_args.GetBoolArg("-b", def)
                       && !test_args.GetBoolArg("-ccc", def)
                       && !test_args.GetBoolArg("-d", def)
                       && !test_args.GetBoolArg("-fff", def)
                       && test_args.GetBoolArg("-ggg", def)
                       && !test_args.GetBoolArg("-h", def)
                       && test_args.GetBoolArg("-i", def)
                       && test_args.GetBoolArg("-zzz", def) == def
                       && test_args.GetBoolArg("-iii", def) == def
                     );
      }
  
      BOOST_CHECK(test_args.GetArgs("-a").size() == 1
                  && test_args.GetArgs("-a").front() == "");
      BOOST_CHECK(test_args.GetArgs("-b").size() == 1
                  && test_args.GetArgs("-b").front() == "1");
      BOOST_CHECK(test_args.GetArgs("-ccc").size() == 2
                  && test_args.GetArgs("-ccc").front() == "argument"
                  && test_args.GetArgs("-ccc").back() == "multiple");
      BOOST_CHECK(test_args.GetArgs("-fff").size() == 0);
      BOOST_CHECK(test_args.GetArgs("-nofff").size() == 0);
      BOOST_CHECK(test_args.GetArgs("-ggg").size() == 1
                  && test_args.GetArgs("-ggg").front() == "1");
      BOOST_CHECK(test_args.GetArgs("-noggg").size() == 0);
      BOOST_CHECK(test_args.GetArgs("-h").size() == 0);
      BOOST_CHECK(test_args.GetArgs("-noh").size() == 0);
      BOOST_CHECK(test_args.GetArgs("-i").size() == 1
                  && test_args.GetArgs("-i").front() == "1");
      BOOST_CHECK(test_args.GetArgs("-noi").size() == 0);
      BOOST_CHECK(test_args.GetArgs("-zzz").size() == 0);
  
      BOOST_CHECK(!test_args.IsArgNegated("-a"));
      BOOST_CHECK(!test_args.IsArgNegated("-b"));
      BOOST_CHECK(!test_args.IsArgNegated("-ccc"));
      BOOST_CHECK(!test_args.IsArgNegated("-d"));
      BOOST_CHECK(test_args.IsArgNegated("-fff"));
      BOOST_CHECK(!test_args.IsArgNegated("-ggg"));
      BOOST_CHECK(test_args.IsArgNegated("-h")); // last setting takes precedence
      BOOST_CHECK(!test_args.IsArgNegated("-i")); // last setting takes precedence
      BOOST_CHECK(!test_args.IsArgNegated("-zzz"));
  
      // Test sections work
      test_args.SelectConfigNetwork("sec1");
  
      // same as original
      BOOST_CHECK(test_args.GetArg("-a", "xxx") == ""
                  && test_args.GetArg("-b", "xxx") == "1"
                  && test_args.GetArg("-fff", "xxx") == "0"
                  && test_args.GetArg("-ggg", "xxx") == "1"
                  && test_args.GetArg("-zzz", "xxx") == "xxx"
                  && test_args.GetArg("-iii", "xxx") == "xxx"
                 );
      // d is overridden
      BOOST_CHECK(test_args.GetArg("-d", "xxx") == "eee");
      // section-specific setting
      BOOST_CHECK(test_args.GetArg("-h", "xxx") == "1");
      // section takes priority for multiple values
      BOOST_CHECK(test_args.GetArg("-ccc", "xxx") == "extend1");
      // check multiple values works
      const std::vector<std::string> sec1_ccc_expected = {"extend1","extend2","argument","multiple"};
      const auto& sec1_ccc_res = test_args.GetArgs("-ccc");
      BOOST_CHECK_EQUAL_COLLECTIONS(sec1_ccc_res.begin(), sec1_ccc_res.end(), sec1_ccc_expected.begin(), sec1_ccc_expected.end());
  
      test_args.SelectConfigNetwork("sec2");
  
      // same as original
      BOOST_CHECK(test_args.GetArg("-a", "xxx") == ""
                  && test_args.GetArg("-b", "xxx") == "1"
                  && test_args.GetArg("-d", "xxx") == "e"
                  && test_args.GetArg("-fff", "xxx") == "0"
                  && test_args.GetArg("-ggg", "xxx") == "1"
                  && test_args.GetArg("-zzz", "xxx") == "xxx"
                  && test_args.GetArg("-h", "xxx") == "0"
                 );
      // section-specific setting
      BOOST_CHECK(test_args.GetArg("-iii", "xxx") == "2");
      // section takes priority for multiple values
      BOOST_CHECK(test_args.GetArg("-ccc", "xxx") == "extend3");
      // check multiple values works
      const std::vector<std::string> sec2_ccc_expected = {"extend3","argument","multiple"};
      const auto& sec2_ccc_res = test_args.GetArgs("-ccc");
      BOOST_CHECK_EQUAL_COLLECTIONS(sec2_ccc_res.begin(), sec2_ccc_res.end(), sec2_ccc_expected.begin(), sec2_ccc_expected.end());
  
      // Test section only options
  
      test_args.SetNetworkOnlyArg("-d");
      test_args.SetNetworkOnlyArg("-ccc");
      test_args.SetNetworkOnlyArg("-h");
  
      test_args.SelectConfigNetwork(CBaseChainParams::MAIN);
      BOOST_CHECK(test_args.GetArg("-d", "xxx") == "e");
      BOOST_CHECK(test_args.GetArgs("-ccc").size() == 2);
      BOOST_CHECK(test_args.GetArg("-h", "xxx") == "0");
  
      test_args.SelectConfigNetwork("sec1");
      BOOST_CHECK(test_args.GetArg("-d", "xxx") == "eee");
      BOOST_CHECK(test_args.GetArgs("-d").size() == 1);
      BOOST_CHECK(test_args.GetArgs("-ccc").size() == 2);
      BOOST_CHECK(test_args.GetArg("-h", "xxx") == "1");
  
      test_args.SelectConfigNetwork("sec2");
      BOOST_CHECK(test_args.GetArg("-d", "xxx") == "xxx");
      BOOST_CHECK(test_args.GetArgs("-d").size() == 0);
      BOOST_CHECK(test_args.GetArgs("-ccc").size() == 1);
      BOOST_CHECK(test_args.GetArg("-h", "xxx") == "0");
  }
  
  BOOST_AUTO_TEST_CASE(util_GetArg)
  {
      TestArgsManager testArgs;
      testArgs.GetOverrideArgs().clear();
      testArgs.GetOverrideArgs()["strtest1"] = {"string..."};
      // strtest2 undefined on purpose
      testArgs.GetOverrideArgs()["inttest1"] = {"12345"};
      testArgs.GetOverrideArgs()["inttest2"] = {"81985529216486895"};
      // inttest3 undefined on purpose
      testArgs.GetOverrideArgs()["booltest1"] = {""};
      // booltest2 undefined on purpose
      testArgs.GetOverrideArgs()["booltest3"] = {"0"};
      testArgs.GetOverrideArgs()["booltest4"] = {"1"};
  
      // priorities
      testArgs.GetOverrideArgs()["pritest1"] = {"a", "b"};
      testArgs.GetConfigArgs()["pritest2"] = {"a", "b"};
      testArgs.GetOverrideArgs()["pritest3"] = {"a"};
      testArgs.GetConfigArgs()["pritest3"] = {"b"};
      testArgs.GetOverrideArgs()["pritest4"] = {"a","b"};
      testArgs.GetConfigArgs()["pritest4"] = {"c","d"};
  
      BOOST_CHECK_EQUAL(testArgs.GetArg("strtest1", "default"), "string...");
      BOOST_CHECK_EQUAL(testArgs.GetArg("strtest2", "default"), "default");
      BOOST_CHECK_EQUAL(testArgs.GetArg("inttest1", -1), 12345);
      BOOST_CHECK_EQUAL(testArgs.GetArg("inttest2", -1), 81985529216486895LL);
      BOOST_CHECK_EQUAL(testArgs.GetArg("inttest3", -1), -1);
      BOOST_CHECK_EQUAL(testArgs.GetBoolArg("booltest1", false), true);
      BOOST_CHECK_EQUAL(testArgs.GetBoolArg("booltest2", false), false);
      BOOST_CHECK_EQUAL(testArgs.GetBoolArg("booltest3", false), false);
      BOOST_CHECK_EQUAL(testArgs.GetBoolArg("booltest4", false), true);
  
      BOOST_CHECK_EQUAL(testArgs.GetArg("pritest1", "default"), "b");
      BOOST_CHECK_EQUAL(testArgs.GetArg("pritest2", "default"), "a");
      BOOST_CHECK_EQUAL(testArgs.GetArg("pritest3", "default"), "a");
      BOOST_CHECK_EQUAL(testArgs.GetArg("pritest4", "default"), "b");
  }
  
  BOOST_AUTO_TEST_CASE(util_GetChainName)
  {
      TestArgsManager test_args;
      const char* avail_args[] = {"-testnet", "-regtest"};
      test_args.SetupArgs(2, avail_args);
  
      const char* argv_testnet[] = {"cmd", "-testnet"};
      const char* argv_regtest[] = {"cmd", "-regtest"};
      const char* argv_test_no_reg[] = {"cmd", "-testnet", "-noregtest"};
      const char* argv_both[] = {"cmd", "-testnet", "-regtest"};
  
      // equivalent to "-testnet"
      // regtest in testnet section is ignored
      const char* testnetconf = "testnet=1\nregtest=0\n[test]\nregtest=1";
      std::string error;
  
      test_args.ParseParameters(0, (char**)argv_testnet, error);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "main");
  
      test_args.ParseParameters(2, (char**)argv_testnet, error);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(2, (char**)argv_regtest, error);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "regtest");
  
      test_args.ParseParameters(3, (char**)argv_test_no_reg, error);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(3, (char**)argv_both, error);
      BOOST_CHECK_THROW(test_args.GetChainName(), std::runtime_error);
  
      test_args.ParseParameters(0, (char**)argv_testnet, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(2, (char**)argv_testnet, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(2, (char**)argv_regtest, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_THROW(test_args.GetChainName(), std::runtime_error);
  
      test_args.ParseParameters(3, (char**)argv_test_no_reg, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(3, (char**)argv_both, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_THROW(test_args.GetChainName(), std::runtime_error);
  
      // check setting the network to test (and thus making
      // [test] regtest=1 potentially relevant) doesn't break things
      test_args.SelectConfigNetwork("test");
  
      test_args.ParseParameters(0, (char**)argv_testnet, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(2, (char**)argv_testnet, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(2, (char**)argv_regtest, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_THROW(test_args.GetChainName(), std::runtime_error);
  
      test_args.ParseParameters(2, (char**)argv_test_no_reg, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_EQUAL(test_args.GetChainName(), "test");
  
      test_args.ParseParameters(3, (char**)argv_both, error);
      test_args.ReadConfigString(testnetconf);
      BOOST_CHECK_THROW(test_args.GetChainName(), std::runtime_error);
  }
  
  BOOST_AUTO_TEST_CASE(util_FormatMoney)
  {
      BOOST_CHECK_EQUAL(FormatMoney(0), "0.00");
      BOOST_CHECK_EQUAL(FormatMoney((COIN/10000)*123456789), "12345.6789");
      BOOST_CHECK_EQUAL(FormatMoney(-COIN), "-1.00");
  
      BOOST_CHECK_EQUAL(FormatMoney(COIN*100000000), "100000000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*10000000), "10000000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*1000000), "1000000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*100000), "100000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*10000), "10000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*1000), "1000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*100), "100.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*10), "10.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN), "1.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/10), "0.10");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/100), "0.01");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/1000), "0.001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/10000), "0.0001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/100000), "0.00001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/1000000), "0.000001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/10000000), "0.0000001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/100000000), "0.00000001");
  }
  
  BOOST_AUTO_TEST_CASE(util_ParseMoney)
  {
      CAmount ret = 0;
      BOOST_CHECK(ParseMoney("0.0", ret));
      BOOST_CHECK_EQUAL(ret, 0);
  
      BOOST_CHECK(ParseMoney("12345.6789", ret));
      BOOST_CHECK_EQUAL(ret, (COIN/10000)*123456789);
  
      BOOST_CHECK(ParseMoney("100000000.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*100000000);
      BOOST_CHECK(ParseMoney("10000000.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*10000000);
      BOOST_CHECK(ParseMoney("1000000.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*1000000);
      BOOST_CHECK(ParseMoney("100000.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*100000);
      BOOST_CHECK(ParseMoney("10000.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*10000);
      BOOST_CHECK(ParseMoney("1000.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*1000);
      BOOST_CHECK(ParseMoney("100.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*100);
      BOOST_CHECK(ParseMoney("10.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN*10);
      BOOST_CHECK(ParseMoney("1.00", ret));
      BOOST_CHECK_EQUAL(ret, COIN);
      BOOST_CHECK(ParseMoney("1", ret));
      BOOST_CHECK_EQUAL(ret, COIN);
      BOOST_CHECK(ParseMoney("0.1", ret));
      BOOST_CHECK_EQUAL(ret, COIN/10);
      BOOST_CHECK(ParseMoney("0.01", ret));
      BOOST_CHECK_EQUAL(ret, COIN/100);
      BOOST_CHECK(ParseMoney("0.001", ret));
      BOOST_CHECK_EQUAL(ret, COIN/1000);
      BOOST_CHECK(ParseMoney("0.0001", ret));
      BOOST_CHECK_EQUAL(ret, COIN/10000);
      BOOST_CHECK(ParseMoney("0.00001", ret));
      BOOST_CHECK_EQUAL(ret, COIN/100000);
      BOOST_CHECK(ParseMoney("0.000001", ret));
      BOOST_CHECK_EQUAL(ret, COIN/1000000);
      BOOST_CHECK(ParseMoney("0.0000001", ret));
      BOOST_CHECK_EQUAL(ret, COIN/10000000);
      BOOST_CHECK(ParseMoney("0.00000001", ret));
      BOOST_CHECK_EQUAL(ret, COIN/100000000);
  
      // Attempted 63 bit overflow should fail
      BOOST_CHECK(!ParseMoney("92233720368.54775808", ret));
  
      // Parsing negative amounts must fail
      BOOST_CHECK(!ParseMoney("-1", ret));
  }
  
  BOOST_AUTO_TEST_CASE(util_IsHex)
  {
      BOOST_CHECK(IsHex("00"));
      BOOST_CHECK(IsHex("00112233445566778899aabbccddeeffAABBCCDDEEFF"));
      BOOST_CHECK(IsHex("ff"));
      BOOST_CHECK(IsHex("FF"));
  
      BOOST_CHECK(!IsHex(""));
      BOOST_CHECK(!IsHex("0"));
      BOOST_CHECK(!IsHex("a"));
      BOOST_CHECK(!IsHex("eleven"));
      BOOST_CHECK(!IsHex("00xx00"));
      BOOST_CHECK(!IsHex("0x0000"));
  }
  
  BOOST_AUTO_TEST_CASE(util_IsHexNumber)
  {
      BOOST_CHECK(IsHexNumber("0x0"));
      BOOST_CHECK(IsHexNumber("0"));
      BOOST_CHECK(IsHexNumber("0x10"));
      BOOST_CHECK(IsHexNumber("10"));
      BOOST_CHECK(IsHexNumber("0xff"));
      BOOST_CHECK(IsHexNumber("ff"));
      BOOST_CHECK(IsHexNumber("0xFfa"));
      BOOST_CHECK(IsHexNumber("Ffa"));
      BOOST_CHECK(IsHexNumber("0x00112233445566778899aabbccddeeffAABBCCDDEEFF"));
      BOOST_CHECK(IsHexNumber("00112233445566778899aabbccddeeffAABBCCDDEEFF"));
  
      BOOST_CHECK(!IsHexNumber(""));   // empty string not allowed
      BOOST_CHECK(!IsHexNumber("0x")); // empty string after prefix not allowed
      BOOST_CHECK(!IsHexNumber("0x0 ")); // no spaces at end,
      BOOST_CHECK(!IsHexNumber(" 0x0")); // or beginning,
      BOOST_CHECK(!IsHexNumber("0x 0")); // or middle,
      BOOST_CHECK(!IsHexNumber(" "));    // etc.
      BOOST_CHECK(!IsHexNumber("0x0ga")); // invalid character
      BOOST_CHECK(!IsHexNumber("x0"));    // broken prefix
      BOOST_CHECK(!IsHexNumber("0x0x00")); // two prefixes not allowed
  
  }
  
  BOOST_AUTO_TEST_CASE(util_seed_insecure_rand)
  {
      SeedInsecureRand(true);
      for (int mod=2;mod<11;mod++)
      {
          int mask = 1;
          // Really rough binomial confidence approximation.
          int err = 30*10000./mod*sqrt((1./mod*(1-1./mod))/10000.);
          //mask is 2^ceil(log2(mod))-1
          while(mask<mod-1)mask=(mask<<1)+1;
  
          int count = 0;
          //How often does it get a zero from the uniform range [0,mod)?
          for (int i = 0; i < 10000; i++) {
              uint32_t rval;
              do{
                  rval=InsecureRand32()&mask;
              }while(rval>=(uint32_t)mod);
              count += rval==0;
          }
          BOOST_CHECK(count<=10000/mod+err);
          BOOST_CHECK(count>=10000/mod-err);
      }
  }
  
  BOOST_AUTO_TEST_CASE(util_TimingResistantEqual)
  {
      BOOST_CHECK(TimingResistantEqual(std::string(""), std::string("")));
      BOOST_CHECK(!TimingResistantEqual(std::string("abc"), std::string("")));
      BOOST_CHECK(!TimingResistantEqual(std::string(""), std::string("abc")));
      BOOST_CHECK(!TimingResistantEqual(std::string("a"), std::string("aa")));
      BOOST_CHECK(!TimingResistantEqual(std::string("aa"), std::string("a")));
      BOOST_CHECK(TimingResistantEqual(std::string("abc"), std::string("abc")));
      BOOST_CHECK(!TimingResistantEqual(std::string("abc"), std::string("aba")));
  }
  
  /* Test strprintf formatting directives.
   * Put a string before and after to ensure sanity of element sizes on stack. */
  #define B "check_prefix"
  #define E "check_postfix"
  BOOST_AUTO_TEST_CASE(strprintf_numbers)
  {
      int64_t s64t = -9223372036854775807LL; /* signed 64 bit test value */
      uint64_t u64t = 18446744073709551615ULL; /* unsigned 64 bit test value */
      BOOST_CHECK(strprintf("%s %d %s", B, s64t, E) == B" -9223372036854775807 " E);
      BOOST_CHECK(strprintf("%s %u %s", B, u64t, E) == B" 18446744073709551615 " E);
      BOOST_CHECK(strprintf("%s %x %s", B, u64t, E) == B" ffffffffffffffff " E);
  
      size_t st = 12345678; /* unsigned size_t test value */
      ssize_t sst = -12345678; /* signed size_t test value */
      BOOST_CHECK(strprintf("%s %d %s", B, sst, E) == B" -12345678 " E);
      BOOST_CHECK(strprintf("%s %u %s", B, st, E) == B" 12345678 " E);
      BOOST_CHECK(strprintf("%s %x %s", B, st, E) == B" bc614e " E);
  
      ptrdiff_t pt = 87654321; /* positive ptrdiff_t test value */
      ptrdiff_t spt = -87654321; /* negative ptrdiff_t test value */
      BOOST_CHECK(strprintf("%s %d %s", B, spt, E) == B" -87654321 " E);
      BOOST_CHECK(strprintf("%s %u %s", B, pt, E) == B" 87654321 " E);
      BOOST_CHECK(strprintf("%s %x %s", B, pt, E) == B" 5397fb1 " E);
  }
  #undef B
  #undef E
  
  /* Check for mingw/wine issue #3494
   * Remove this test before time.ctime(0xffffffff) == 'Sun Feb  7 07:28:15 2106'
   */
  BOOST_AUTO_TEST_CASE(gettime)
  {
      BOOST_CHECK((GetTime() & ~0xFFFFFFFFLL) == 0);
  }
  
  BOOST_AUTO_TEST_CASE(test_IsDigit)
  {
      BOOST_CHECK_EQUAL(IsDigit('0'), true);
      BOOST_CHECK_EQUAL(IsDigit('1'), true);
      BOOST_CHECK_EQUAL(IsDigit('8'), true);
      BOOST_CHECK_EQUAL(IsDigit('9'), true);
  
      BOOST_CHECK_EQUAL(IsDigit('0' - 1), false);
      BOOST_CHECK_EQUAL(IsDigit('9' + 1), false);
      BOOST_CHECK_EQUAL(IsDigit(0), false);
      BOOST_CHECK_EQUAL(IsDigit(1), false);
      BOOST_CHECK_EQUAL(IsDigit(8), false);
      BOOST_CHECK_EQUAL(IsDigit(9), false);
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseInt32)
  {
      int32_t n;
      // Valid values
      BOOST_CHECK(ParseInt32("1234", nullptr));
      BOOST_CHECK(ParseInt32("0", &n) && n == 0);
      BOOST_CHECK(ParseInt32("1234", &n) && n == 1234);
      BOOST_CHECK(ParseInt32("01234", &n) && n == 1234); // no octal
      BOOST_CHECK(ParseInt32("2147483647", &n) && n == 2147483647);
      BOOST_CHECK(ParseInt32("-2147483648", &n) && n == (-2147483647 - 1)); // (-2147483647 - 1) equals INT_MIN
      BOOST_CHECK(ParseInt32("-1234", &n) && n == -1234);
      // Invalid values
      BOOST_CHECK(!ParseInt32("", &n));
      BOOST_CHECK(!ParseInt32(" 1", &n)); // no padding inside
      BOOST_CHECK(!ParseInt32("1 ", &n));
      BOOST_CHECK(!ParseInt32("1a", &n));
      BOOST_CHECK(!ParseInt32("aap", &n));
      BOOST_CHECK(!ParseInt32("0x1", &n)); // no hex
      BOOST_CHECK(!ParseInt32("0x1", &n)); // no hex
      const char test_bytes[] = {'1', 0, '1'};
      std::string teststr(test_bytes, sizeof(test_bytes));
      BOOST_CHECK(!ParseInt32(teststr, &n)); // no embedded NULs
      // Overflow and underflow
      BOOST_CHECK(!ParseInt32("-2147483649", nullptr));
      BOOST_CHECK(!ParseInt32("2147483648", nullptr));
      BOOST_CHECK(!ParseInt32("-32482348723847471234", nullptr));
      BOOST_CHECK(!ParseInt32("32482348723847471234", nullptr));
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseInt64)
  {
      int64_t n;
      // Valid values
      BOOST_CHECK(ParseInt64("1234", nullptr));
      BOOST_CHECK(ParseInt64("0", &n) && n == 0LL);
      BOOST_CHECK(ParseInt64("1234", &n) && n == 1234LL);
      BOOST_CHECK(ParseInt64("01234", &n) && n == 1234LL); // no octal
      BOOST_CHECK(ParseInt64("2147483647", &n) && n == 2147483647LL);
      BOOST_CHECK(ParseInt64("-2147483648", &n) && n == -2147483648LL);
      BOOST_CHECK(ParseInt64("9223372036854775807", &n) && n == (int64_t)9223372036854775807);
      BOOST_CHECK(ParseInt64("-9223372036854775808", &n) && n == (int64_t)-9223372036854775807-1);
      BOOST_CHECK(ParseInt64("-1234", &n) && n == -1234LL);
      // Invalid values
      BOOST_CHECK(!ParseInt64("", &n));
      BOOST_CHECK(!ParseInt64(" 1", &n)); // no padding inside
      BOOST_CHECK(!ParseInt64("1 ", &n));
      BOOST_CHECK(!ParseInt64("1a", &n));
      BOOST_CHECK(!ParseInt64("aap", &n));
      BOOST_CHECK(!ParseInt64("0x1", &n)); // no hex
      const char test_bytes[] = {'1', 0, '1'};
      std::string teststr(test_bytes, sizeof(test_bytes));
      BOOST_CHECK(!ParseInt64(teststr, &n)); // no embedded NULs
      // Overflow and underflow
      BOOST_CHECK(!ParseInt64("-9223372036854775809", nullptr));
      BOOST_CHECK(!ParseInt64("9223372036854775808", nullptr));
      BOOST_CHECK(!ParseInt64("-32482348723847471234", nullptr));
      BOOST_CHECK(!ParseInt64("32482348723847471234", nullptr));
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseUInt32)
  {
      uint32_t n;
      // Valid values
      BOOST_CHECK(ParseUInt32("1234", nullptr));
      BOOST_CHECK(ParseUInt32("0", &n) && n == 0);
      BOOST_CHECK(ParseUInt32("1234", &n) && n == 1234);
      BOOST_CHECK(ParseUInt32("01234", &n) && n == 1234); // no octal
      BOOST_CHECK(ParseUInt32("2147483647", &n) && n == 2147483647);
      BOOST_CHECK(ParseUInt32("2147483648", &n) && n == (uint32_t)2147483648);
      BOOST_CHECK(ParseUInt32("4294967295", &n) && n == (uint32_t)4294967295);
      // Invalid values
      BOOST_CHECK(!ParseUInt32("", &n));
      BOOST_CHECK(!ParseUInt32(" 1", &n)); // no padding inside
      BOOST_CHECK(!ParseUInt32(" -1", &n));
      BOOST_CHECK(!ParseUInt32("1 ", &n));
      BOOST_CHECK(!ParseUInt32("1a", &n));
      BOOST_CHECK(!ParseUInt32("aap", &n));
      BOOST_CHECK(!ParseUInt32("0x1", &n)); // no hex
      BOOST_CHECK(!ParseUInt32("0x1", &n)); // no hex
      const char test_bytes[] = {'1', 0, '1'};
      std::string teststr(test_bytes, sizeof(test_bytes));
      BOOST_CHECK(!ParseUInt32(teststr, &n)); // no embedded NULs
      // Overflow and underflow
      BOOST_CHECK(!ParseUInt32("-2147483648", &n));
      BOOST_CHECK(!ParseUInt32("4294967296", &n));
      BOOST_CHECK(!ParseUInt32("-1234", &n));
      BOOST_CHECK(!ParseUInt32("-32482348723847471234", nullptr));
      BOOST_CHECK(!ParseUInt32("32482348723847471234", nullptr));
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseUInt64)
  {
      uint64_t n;
      // Valid values
      BOOST_CHECK(ParseUInt64("1234", nullptr));
      BOOST_CHECK(ParseUInt64("0", &n) && n == 0LL);
      BOOST_CHECK(ParseUInt64("1234", &n) && n == 1234LL);
      BOOST_CHECK(ParseUInt64("01234", &n) && n == 1234LL); // no octal
      BOOST_CHECK(ParseUInt64("2147483647", &n) && n == 2147483647LL);
      BOOST_CHECK(ParseUInt64("9223372036854775807", &n) && n == 9223372036854775807ULL);
      BOOST_CHECK(ParseUInt64("9223372036854775808", &n) && n == 9223372036854775808ULL);
      BOOST_CHECK(ParseUInt64("18446744073709551615", &n) && n == 18446744073709551615ULL);
      // Invalid values
      BOOST_CHECK(!ParseUInt64("", &n));
      BOOST_CHECK(!ParseUInt64(" 1", &n)); // no padding inside
      BOOST_CHECK(!ParseUInt64(" -1", &n));
      BOOST_CHECK(!ParseUInt64("1 ", &n));
      BOOST_CHECK(!ParseUInt64("1a", &n));
      BOOST_CHECK(!ParseUInt64("aap", &n));
      BOOST_CHECK(!ParseUInt64("0x1", &n)); // no hex
      const char test_bytes[] = {'1', 0, '1'};
      std::string teststr(test_bytes, sizeof(test_bytes));
      BOOST_CHECK(!ParseUInt64(teststr, &n)); // no embedded NULs
      // Overflow and underflow
      BOOST_CHECK(!ParseUInt64("-9223372036854775809", nullptr));
      BOOST_CHECK(!ParseUInt64("18446744073709551616", nullptr));
      BOOST_CHECK(!ParseUInt64("-32482348723847471234", nullptr));
      BOOST_CHECK(!ParseUInt64("-2147483648", &n));
      BOOST_CHECK(!ParseUInt64("-9223372036854775808", &n));
      BOOST_CHECK(!ParseUInt64("-1234", &n));
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseDouble)
  {
      double n;
      // Valid values
      BOOST_CHECK(ParseDouble("1234", nullptr));
      BOOST_CHECK(ParseDouble("0", &n) && n == 0.0);
      BOOST_CHECK(ParseDouble("1234", &n) && n == 1234.0);
      BOOST_CHECK(ParseDouble("01234", &n) && n == 1234.0); // no octal
      BOOST_CHECK(ParseDouble("2147483647", &n) && n == 2147483647.0);
      BOOST_CHECK(ParseDouble("-2147483648", &n) && n == -2147483648.0);
      BOOST_CHECK(ParseDouble("-1234", &n) && n == -1234.0);
      BOOST_CHECK(ParseDouble("1e6", &n) && n == 1e6);
      BOOST_CHECK(ParseDouble("-1e6", &n) && n == -1e6);
      // Invalid values
      BOOST_CHECK(!ParseDouble("", &n));
      BOOST_CHECK(!ParseDouble(" 1", &n)); // no padding inside
      BOOST_CHECK(!ParseDouble("1 ", &n));
      BOOST_CHECK(!ParseDouble("1a", &n));
      BOOST_CHECK(!ParseDouble("aap", &n));
      BOOST_CHECK(!ParseDouble("0x1", &n)); // no hex
      const char test_bytes[] = {'1', 0, '1'};
      std::string teststr(test_bytes, sizeof(test_bytes));
      BOOST_CHECK(!ParseDouble(teststr, &n)); // no embedded NULs
      // Overflow and underflow
      BOOST_CHECK(!ParseDouble("-1e10000", nullptr));
      BOOST_CHECK(!ParseDouble("1e10000", nullptr));
  }
  
  BOOST_AUTO_TEST_CASE(test_FormatParagraph)
  {
      BOOST_CHECK_EQUAL(FormatParagraph("", 79, 0), "");
      BOOST_CHECK_EQUAL(FormatParagraph("test", 79, 0), "test");
      BOOST_CHECK_EQUAL(FormatParagraph(" test", 79, 0), " test");
      BOOST_CHECK_EQUAL(FormatParagraph("test test", 79, 0), "test test");
      BOOST_CHECK_EQUAL(FormatParagraph("test test", 4, 0), "test\ntest");
      BOOST_CHECK_EQUAL(FormatParagraph("testerde test", 4, 0), "testerde\ntest");
      BOOST_CHECK_EQUAL(FormatParagraph("test test", 4, 4), "test\n    test");
  
      // Make sure we don't indent a fully-new line following a too-long line ending
      BOOST_CHECK_EQUAL(FormatParagraph("test test\nabc", 4, 4), "test\n    test\nabc");
  
      BOOST_CHECK_EQUAL(FormatParagraph("This_is_a_very_long_test_string_without_any_spaces_so_it_should_just_get_returned_as_is_despite_the_length until it gets here", 79), "This_is_a_very_long_test_string_without_any_spaces_so_it_should_just_get_returned_as_is_despite_the_length\nuntil it gets here");
  
      // Test wrap length is exact
      BOOST_CHECK_EQUAL(FormatParagraph("a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 a b c de f g h i j k l m n o p", 79), "a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 a b c de\nf g h i j k l m n o p");
      BOOST_CHECK_EQUAL(FormatParagraph("x\na b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 a b c de f g h i j k l m n o p", 79), "x\na b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 a b c de\nf g h i j k l m n o p");
      // Indent should be included in length of lines
      BOOST_CHECK_EQUAL(FormatParagraph("x\na b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 a b c de f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 a b c d e fg h i j k", 79, 4), "x\na b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 a b c de\n    f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 a b c d e fg\n    h i j k");
  
      BOOST_CHECK_EQUAL(FormatParagraph("This is a very long test string. This is a second sentence in the very long test string.", 79), "This is a very long test string. This is a second sentence in the very long\ntest string.");
      BOOST_CHECK_EQUAL(FormatParagraph("This is a very long test string.\nThis is a second sentence in the very long test string. This is a third sentence in the very long test string.", 79), "This is a very long test string.\nThis is a second sentence in the very long test string. This is a third\nsentence in the very long test string.");
      BOOST_CHECK_EQUAL(FormatParagraph("This is a very long test string.\n\nThis is a second sentence in the very long test string. This is a third sentence in the very long test string.", 79), "This is a very long test string.\n\nThis is a second sentence in the very long test string. This is a third\nsentence in the very long test string.");
      BOOST_CHECK_EQUAL(FormatParagraph("Testing that normal newlines do not get indented.\nLike here.", 79), "Testing that normal newlines do not get indented.\nLike here.");
  }
  
  BOOST_AUTO_TEST_CASE(test_FormatSubVersion)
  {
      std::vector<std::string> comments;
      comments.push_back(std::string("comment1"));
      std::vector<std::string> comments2;
      comments2.push_back(std::string("comment1"));
      comments2.push_back(SanitizeString(std::string("Comment2; .,_?@-; !\"#$%&'()*+/<=>[]\\^`{|}~"), SAFE_CHARS_UA_COMMENT)); // Semicolon is discouraged but not forbidden by BIP-0014
      BOOST_CHECK_EQUAL(FormatSubVersion("Test", 99900, std::vector<std::string>()),std::string("/Test:0.9.99/"));
      BOOST_CHECK_EQUAL(FormatSubVersion("Test", 99900, comments),std::string("/Test:0.9.99(comment1)/"));
      BOOST_CHECK_EQUAL(FormatSubVersion("Test", 99900, comments2),std::string("/Test:0.9.99(comment1; Comment2; .,_?@-; )/"));
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseFixedPoint)
  {
      int64_t amount = 0;
      BOOST_CHECK(ParseFixedPoint("0", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 0LL);
      BOOST_CHECK(ParseFixedPoint("1", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 100000000LL);
      BOOST_CHECK(ParseFixedPoint("0.0", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 0LL);
      BOOST_CHECK(ParseFixedPoint("-0.1", 8, &amount));
      BOOST_CHECK_EQUAL(amount, -10000000LL);
      BOOST_CHECK(ParseFixedPoint("1.1", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 110000000LL);
      BOOST_CHECK(ParseFixedPoint("1.10000000000000000", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 110000000LL);
      BOOST_CHECK(ParseFixedPoint("1.1e1", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 1100000000LL);
      BOOST_CHECK(ParseFixedPoint("1.1e-1", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 11000000LL);
      BOOST_CHECK(ParseFixedPoint("1000", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 100000000000LL);
      BOOST_CHECK(ParseFixedPoint("-1000", 8, &amount));
      BOOST_CHECK_EQUAL(amount, -100000000000LL);
      BOOST_CHECK(ParseFixedPoint("0.00000001", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 1LL);
      BOOST_CHECK(ParseFixedPoint("0.0000000100000000", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 1LL);
      BOOST_CHECK(ParseFixedPoint("-0.00000001", 8, &amount));
      BOOST_CHECK_EQUAL(amount, -1LL);
      BOOST_CHECK(ParseFixedPoint("1000000000.00000001", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 100000000000000001LL);
      BOOST_CHECK(ParseFixedPoint("9999999999.99999999", 8, &amount));
      BOOST_CHECK_EQUAL(amount, 999999999999999999LL);
      BOOST_CHECK(ParseFixedPoint("-9999999999.99999999", 8, &amount));
      BOOST_CHECK_EQUAL(amount, -999999999999999999LL);
  
      BOOST_CHECK(!ParseFixedPoint("", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("a-1000", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-a1000", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-1000a", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-01000", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("00.1", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint(".1", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("--0.1", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("0.000000001", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-0.000000001", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("0.00000001000000001", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-10000000000.00000000", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("10000000000.00000000", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-10000000000.00000001", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("10000000000.00000001", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-10000000000.00000009", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("10000000000.00000009", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-99999999999.99999999", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("99999909999.09999999", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("92233720368.54775807", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("92233720368.54775808", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-92233720368.54775808", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("-92233720368.54775809", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("1.1e", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("1.1e-", 8, &amount));
      BOOST_CHECK(!ParseFixedPoint("1.", 8, &amount));
  }
  
  static void TestOtherThread(fs::path dirname, std::string lockname, bool *result)
  {
      *result = LockDirectory(dirname, lockname);
  }
  
  #ifndef WIN32 // Cannot do this test on WIN32 due to lack of fork()
  static constexpr char LockCommand = 'L';
  static constexpr char UnlockCommand = 'U';
  static constexpr char ExitCommand = 'X';
  
  static void TestOtherProcess(fs::path dirname, std::string lockname, int fd)
  {
      char ch;
      while (true) {
          int rv = read(fd, &ch, 1); // Wait for command
          assert(rv == 1);
          switch(ch) {
          case LockCommand:
              ch = LockDirectory(dirname, lockname);
              rv = write(fd, &ch, 1);
              assert(rv == 1);
              break;
          case UnlockCommand:
              ReleaseDirectoryLocks();
              ch = true; // Always succeeds
              rv = write(fd, &ch, 1);
              assert(rv == 1);
              break;
          case ExitCommand:
              close(fd);
              exit(0);
          default:
              assert(0);
          }
      }
  }
  #endif
  
  BOOST_AUTO_TEST_CASE(test_LockDirectory)
  {
      fs::path dirname = SetDataDir("test_LockDirectory") / fs::unique_path();
      const std::string lockname = ".lock";
  #ifndef WIN32
      // Revert SIGCHLD to default, otherwise boost.test will catch and fail on
      // it: there is BOOST_TEST_IGNORE_SIGCHLD but that only works when defined
      // at build-time of the boost library
      void (*old_handler)(int) = signal(SIGCHLD, SIG_DFL);
  
      // Fork another process for testing before creating the lock, so that we
      // won't fork while holding the lock (which might be undefined, and is not
      // relevant as test case as that is avoided with -daemonize).
      int fd[2];
      BOOST_CHECK_EQUAL(socketpair(AF_UNIX, SOCK_STREAM, 0, fd), 0);
      pid_t pid = fork();
      if (!pid) {
          BOOST_CHECK_EQUAL(close(fd[1]), 0); // Child: close parent end
          TestOtherProcess(dirname, lockname, fd[0]);
      }
      BOOST_CHECK_EQUAL(close(fd[0]), 0); // Parent: close child end
  #endif
      // Lock on non-existent directory should fail
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname), false);
  
      fs::create_directories(dirname);
  
      // Probing lock on new directory should succeed
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname, true), true);
  
      // Persistent lock on new directory should succeed
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname), true);
  
      // Another lock on the directory from the same thread should succeed
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname), true);
  
      // Another lock on the directory from a different thread within the same process should succeed
      bool threadresult;
      std::thread thr(TestOtherThread, dirname, lockname, &threadresult);
      thr.join();
      BOOST_CHECK_EQUAL(threadresult, true);
  #ifndef WIN32
      // Try to acquire lock in child process while we're holding it, this should fail.
      char ch;
      BOOST_CHECK_EQUAL(write(fd[1], &LockCommand, 1), 1);
      BOOST_CHECK_EQUAL(read(fd[1], &ch, 1), 1);
      BOOST_CHECK_EQUAL((bool)ch, false);
  
      // Give up our lock
      ReleaseDirectoryLocks();
      // Probing lock from our side now should succeed, but not hold on to the lock.
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname, true), true);
  
      // Try to acquire the lock in the child process, this should be successful.
      BOOST_CHECK_EQUAL(write(fd[1], &LockCommand, 1), 1);
      BOOST_CHECK_EQUAL(read(fd[1], &ch, 1), 1);
      BOOST_CHECK_EQUAL((bool)ch, true);
  
      // When we try to probe the lock now, it should fail.
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname, true), false);
  
      // Unlock the lock in the child process
      BOOST_CHECK_EQUAL(write(fd[1], &UnlockCommand, 1), 1);
      BOOST_CHECK_EQUAL(read(fd[1], &ch, 1), 1);
      BOOST_CHECK_EQUAL((bool)ch, true);
  
      // When we try to probe the lock now, it should succeed.
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname, true), true);
  
      // Re-lock the lock in the child process, then wait for it to exit, check
      // successful return. After that, we check that exiting the process
      // has released the lock as we would expect by probing it.
      int processstatus;
      BOOST_CHECK_EQUAL(write(fd[1], &LockCommand, 1), 1);
      BOOST_CHECK_EQUAL(write(fd[1], &ExitCommand, 1), 1);
      BOOST_CHECK_EQUAL(waitpid(pid, &processstatus, 0), pid);
      BOOST_CHECK_EQUAL(processstatus, 0);
      BOOST_CHECK_EQUAL(LockDirectory(dirname, lockname, true), true);
  
      // Restore SIGCHLD
      signal(SIGCHLD, old_handler);
      BOOST_CHECK_EQUAL(close(fd[1]), 0); // Close our side of the socketpair
  #endif
      // Clean up
      ReleaseDirectoryLocks();
      fs::remove_all(dirname);
  }
  
  BOOST_AUTO_TEST_CASE(test_DirIsWritable)
  {
      // Should be able to write to the data dir.
      fs::path tmpdirname = SetDataDir("test_DirIsWritable");
      BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), true);
  
      // Should not be able to write to a non-existent dir.
      tmpdirname = tmpdirname / fs::unique_path();
      BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), false);
  
      fs::create_directory(tmpdirname);
      // Should be able to write to it now.
      BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), true);
      fs::remove(tmpdirname);
  }
  
  BOOST_AUTO_TEST_SUITE_END()
  