text: // Copyright (c) 2011-2014 The Bitcoin Core developers
  // Copyright (c) 2017 The PIVX developers
  // Copyright (c) 2019 The BitCoin ONE developers
  // Distributed under the MIT/X11 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 "random.h"
  #include "sync.h"
  #include "utilstrencodings.h"
  #include "utilmoneystr.h"
  
  #include <stdint.h>
  #include <vector>
  
  #include <boost/test/unit_test.hpp>
  
  using namespace std;
  
  BOOST_AUTO_TEST_SUITE(util_tests)
  
  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);
  
      // 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, 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_AUTO_TEST_CASE(util_DateTimeStrFormat)
  {
      BOOST_CHECK_EQUAL(DateTimeStrFormat("%Y-%m-%d %H:%M:%S", 0), "1970-01-01 00:00:00");
      BOOST_CHECK_EQUAL(DateTimeStrFormat("%Y-%m-%d %H:%M:%S", 0x7FFFFFFF), "2038-01-19 03:14:07");
      BOOST_CHECK_EQUAL(DateTimeStrFormat("%Y-%m-%d %H:%M:%S", 1317425777), "2011-09-30 23:36:17");
      BOOST_CHECK_EQUAL(DateTimeStrFormat("%Y-%m-%d %H:%M", 1317425777), "2011-09-30 23:36");
      BOOST_CHECK_EQUAL(DateTimeStrFormat("%a, %d %b %Y %H:%M:%S +0000", 1317425777), "Fri, 30 Sep 2011 23:36:17 +0000");
  }
  
  BOOST_AUTO_TEST_CASE(util_ParseParameters)
  {
      const char *argv_test[] = {"-ignored", "-a", "-b", "-ccc=argument", "-ccc=multiple", "f", "-d=e"};
  
      ParseParameters(0, (char**)argv_test);
      BOOST_CHECK(mapArgs.empty() && mapMultiArgs.empty());
  
      ParseParameters(1, (char**)argv_test);
      BOOST_CHECK(mapArgs.empty() && mapMultiArgs.empty());
  
      ParseParameters(5, (char**)argv_test);
      // 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(mapArgs.size() == 3 && mapMultiArgs.size() == 3);
      BOOST_CHECK(mapArgs.count("-a") && mapArgs.count("-b") && mapArgs.count("-ccc")
                  && !mapArgs.count("f") && !mapArgs.count("-d"));
      BOOST_CHECK(mapMultiArgs.count("-a") && mapMultiArgs.count("-b") && mapMultiArgs.count("-ccc")
                  && !mapMultiArgs.count("f") && !mapMultiArgs.count("-d"));
  
      BOOST_CHECK(mapArgs["-a"] == "" && mapArgs["-ccc"] == "multiple");
      BOOST_CHECK(mapMultiArgs["-ccc"].size() == 2);
  }
  
  BOOST_AUTO_TEST_CASE(util_GetArg)
  {
      mapArgs.clear();
      mapArgs["strtest1"] = "string...";
      // strtest2 undefined on purpose
      mapArgs["inttest1"] = "12345";
      mapArgs["inttest2"] = "81985529216486895";
      // inttest3 undefined on purpose
      mapArgs["booltest1"] = "";
      // booltest2 undefined on purpose
      mapArgs["booltest3"] = "0";
      mapArgs["booltest4"] = "1";
  
      BOOST_CHECK_EQUAL(GetArg("strtest1", "default"), "string...");
      BOOST_CHECK_EQUAL(GetArg("strtest2", "default"), "default");
      BOOST_CHECK_EQUAL(GetArg("inttest1", -1), 12345);
      BOOST_CHECK_EQUAL(GetArg("inttest2", -1), 81985529216486895LL);
      BOOST_CHECK_EQUAL(GetArg("inttest3", -1), -1);
      BOOST_CHECK_EQUAL(GetBoolArg("booltest1", false), true);
      BOOST_CHECK_EQUAL(GetBoolArg("booltest2", false), false);
      BOOST_CHECK_EQUAL(GetBoolArg("booltest3", false), false);
      BOOST_CHECK_EQUAL(GetBoolArg("booltest4", false), true);
  }
  
  BOOST_AUTO_TEST_CASE(util_FormatMoney)
  {
      BOOST_CHECK_EQUAL(FormatMoney(0, false), "0.00");
      BOOST_CHECK_EQUAL(FormatMoney((COIN/10000)*123456789, false), "12345.6789");
      BOOST_CHECK_EQUAL(FormatMoney(COIN, true), "+1.00");
      BOOST_CHECK_EQUAL(FormatMoney(-COIN, false), "-1.00");
      BOOST_CHECK_EQUAL(FormatMoney(-COIN, true), "-1.00");
  
      BOOST_CHECK_EQUAL(FormatMoney(COIN*100000000, false), "100000000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*10000000, false), "10000000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*1000000, false), "1000000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*100000, false), "100000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*10000, false), "10000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*1000, false), "1000.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*100, false), "100.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN*10, false), "10.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN, false), "1.00");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/10, false), "0.10");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/100, false), "0.01");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/1000, false), "0.001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/10000, false), "0.0001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/100000, false), "0.00001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/1000000, false), "0.000001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/10000000, false), "0.0000001");
      BOOST_CHECK_EQUAL(FormatMoney(COIN/100000000, false), "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_seed_insecure_rand)
  {
      int i;
      int count=0;
  
      seed_insecure_rand(true);
  
      for (int mod=2;mod<11;mod++)
      {
          int mask = 1;
          // Really rough binomal 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;
  
          count = 0;
          //How often does it get a zero from the uniform range [0,mod)?
          for (i=0;i<10000;i++)
          {
              uint32_t rval;
              do{
                  rval=insecure_rand()&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_ParseInt32)
  {
      int32_t n;
      // Valid values
      BOOST_CHECK(ParseInt32("1234", NULL));
      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 == -2147483648);
      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", NULL));
      BOOST_CHECK(!ParseInt32("2147483648", NULL));
      BOOST_CHECK(!ParseInt32("-32482348723847471234", NULL));
      BOOST_CHECK(!ParseInt32("32482348723847471234", NULL));
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseInt64)
  {
      int64_t n;
      // Valid values
      BOOST_CHECK(ParseInt64("1234", NULL));
      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", NULL));
      BOOST_CHECK(!ParseInt64("9223372036854775808", NULL));
      BOOST_CHECK(!ParseInt64("-32482348723847471234", NULL));
      BOOST_CHECK(!ParseInt64("32482348723847471234", NULL));
  }
  
  BOOST_AUTO_TEST_CASE(test_ParseDouble)
  {
      double n;
      // Valid values
      BOOST_CHECK(ParseDouble("1234", NULL));
      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", NULL));
      BOOST_CHECK(!ParseDouble("1e10000", NULL));
  }
  
  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");
      BOOST_CHECK_EQUAL(FormatParagraph("This is a very long test string. This is a second sentence in the very long test string."), "This is a very long test string. This is a second sentence in the very long\ntest string.");
  }
  
  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(std::string("comment2"));
      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_SUITE_END()
  