text: #include <map>
  #include <string>
  #include <boost/test/unit_test.hpp>
  #include "json/json_spirit_writer_template.h"
  
  #include "main.h"
  #include "wallet.h"
  
  using namespace std;
  using namespace json_spirit;
  
  // In script_tests.cpp
  extern Array read_json(const std::string& filename);
  extern CScript ParseScript(string s);
  
  BOOST_AUTO_TEST_SUITE(transaction_tests)
  
  BOOST_AUTO_TEST_CASE(tx_valid)
  {
      // Read tests from test/data/tx_valid.json
      // Format is an array of arrays
      // Inner arrays are either [ "comment" ]
      // or [[[prevout hash, prevout index, prevout scriptPubKey], [input 2], ...],"], serializedTransaction, enforceP2SH
      // ... where all scripts are stringified scripts.
      Array tests = read_json("tx_valid.json");
  
      BOOST_FOREACH(Value& tv, tests)
      {
          Array test = tv.get_array();
          string strTest = write_string(tv, false);
          if (test[0].type() == array_type)
          {
              if (test.size() != 3 || test[1].type() != str_type || test[2].type() != bool_type)
              {
                  BOOST_ERROR("Bad test: " << strTest);
                  continue;
              }
  
              map<COutPoint, CScript> mapprevOutScriptPubKeys;
              Array inputs = test[0].get_array();
              bool fValid = true;
              BOOST_FOREACH(Value& input, inputs)
              {
                  if (input.type() != array_type)
                  {
                      fValid = false;
                      break;
                  }
                  Array vinput = input.get_array();
                  if (vinput.size() != 3)
                  {
                      fValid = false;
                      break;
                  }
  
                  mapprevOutScriptPubKeys[COutPoint(uint256(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
              }
              if (!fValid)
              {
                  BOOST_ERROR("Bad test: " << strTest);
                  continue;
              }
  
              string transaction = test[1].get_str();
              CDataStream stream(ParseHex(transaction), SER_NETWORK, PROTOCOL_VERSION);
              CTransaction tx;
              stream >> tx;
  
              CValidationState state;
              BOOST_CHECK_MESSAGE(tx.CheckTransaction(state), strTest);
              BOOST_CHECK(state.IsValid());
  
              for (unsigned int i = 0; i < tx.vin.size(); i++)
              {
                  if (!mapprevOutScriptPubKeys.count(tx.vin[i].prevout))
                  {
                      BOOST_ERROR("Bad test: " << strTest);
                      break;
                  }
  
                  BOOST_CHECK_MESSAGE(VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout], tx, i, test[2].get_bool() ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, 0), strTest);
              }
          }
      }
  }
  
  BOOST_AUTO_TEST_CASE(tx_invalid)
  {
      // Read tests from test/data/tx_invalid.json
      // Format is an array of arrays
      // Inner arrays are either [ "comment" ]
      // or [[[prevout hash, prevout index, prevout scriptPubKey], [input 2], ...],"], serializedTransaction, enforceP2SH
      // ... where all scripts are stringified scripts.
      Array tests = read_json("tx_invalid.json");
  
      BOOST_FOREACH(Value& tv, tests)
      {
          Array test = tv.get_array();
          string strTest = write_string(tv, false);
          if (test[0].type() == array_type)
          {
              if (test.size() != 3 || test[1].type() != str_type || test[2].type() != bool_type)
              {
                  BOOST_ERROR("Bad test: " << strTest);
                  continue;
              }
  
              map<COutPoint, CScript> mapprevOutScriptPubKeys;
              Array inputs = test[0].get_array();
              bool fValid = true;
              BOOST_FOREACH(Value& input, inputs)
              {
                  if (input.type() != array_type)
                  {
                      fValid = false;
                      break;
                  }
                  Array vinput = input.get_array();
                  if (vinput.size() != 3)
                  {
                      fValid = false;
                      break;
                  }
  
                  mapprevOutScriptPubKeys[COutPoint(uint256(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
              }
              if (!fValid)
              {
                  BOOST_ERROR("Bad test: " << strTest);
                  continue;
              }
  
              string transaction = test[1].get_str();
              CDataStream stream(ParseHex(transaction), SER_NETWORK, PROTOCOL_VERSION);
              CTransaction tx;
              stream >> tx;
  
              CValidationState state;
              fValid = tx.CheckTransaction(state) && state.IsValid();
  
              for (unsigned int i = 0; i < tx.vin.size() && fValid; i++)
              {
                  if (!mapprevOutScriptPubKeys.count(tx.vin[i].prevout))
                  {
                      BOOST_ERROR("Bad test: " << strTest);
                      break;
                  }
  
                  fValid = VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout], tx, i, test[2].get_bool() ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, 0);
              }
  
              BOOST_CHECK_MESSAGE(!fValid, strTest);
          }
      }
  }
  
  BOOST_AUTO_TEST_CASE(basic_transaction_tests)
  {
      // Random real transaction (e2769b09e784f32f62ef849763d4f45b98e07ba658647343b915ff832b110436)
      unsigned char ch[] = {0x01, 0x00, 0x00, 0x00, 0x01, 0x6b, 0xff, 0x7f, 0xcd, 0x4f, 0x85, 0x65, 0xef, 0x40, 0x6d, 0xd5, 0xd6, 0x3d, 0x4f, 0xf9, 0x4f, 0x31, 0x8f, 0xe8, 0x20, 0x27, 0xfd, 0x4d, 0xc4, 0x51, 0xb0, 0x44, 0x74, 0x01, 0x9f, 0x74, 0xb4, 0x00, 0x00, 0x00, 0x00, 0x8c, 0x49, 0x30, 0x46, 0x02, 0x21, 0x00, 0xda, 0x0d, 0xc6, 0xae, 0xce, 0xfe, 0x1e, 0x06, 0xef, 0xdf, 0x05, 0x77, 0x37, 0x57, 0xde, 0xb1, 0x68, 0x82, 0x09, 0x30, 0xe3, 0xb0, 0xd0, 0x3f, 0x46, 0xf5, 0xfc, 0xf1, 0x50, 0xbf, 0x99, 0x0c, 0x02, 0x21, 0x00, 0xd2, 0x5b, 0x5c, 0x87, 0x04, 0x00, 0x76, 0xe4, 0xf2, 0x53, 0xf8, 0x26, 0x2e, 0x76, 0x3e, 0x2d, 0xd5, 0x1e, 0x7f, 0xf0, 0xbe, 0x15, 0x77, 0x27, 0xc4, 0xbc, 0x42, 0x80, 0x7f, 0x17, 0xbd, 0x39, 0x01, 0x41, 0x04, 0xe6, 0xc2, 0x6e, 0xf6, 0x7d, 0xc6, 0x10, 0xd2, 0xcd, 0x19, 0x24, 0x84, 0x78, 0x9a, 0x6c, 0xf9, 0xae, 0xa9, 0x93, 0x0b, 0x94, 0x4b, 0x7e, 0x2d, 0xb5, 0x34, 0x2b, 0x9d, 0x9e, 0x5b, 0x9f, 0xf7, 0x9a, 0xff, 0x9a, 0x2e, 0xe1, 0x97, 0x8d, 0xd7, 0xfd, 0x01, 0xdf, 0xc5, 0x22, 0xee, 0x02, 0x28, 0x3d, 0x3b, 0x06, 0xa9, 0xd0, 0x3a, 0xcf, 0x80, 0x96, 0x96, 0x8d, 0x7d, 0xbb, 0x0f, 0x91, 0x78, 0xff, 0xff, 0xff, 0xff, 0x02, 0x8b, 0xa7, 0x94, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x19, 0x76, 0xa9, 0x14, 0xba, 0xde, 0xec, 0xfd, 0xef, 0x05, 0x07, 0x24, 0x7f, 0xc8, 0xf7, 0x42, 0x41, 0xd7, 0x3b, 0xc0, 0x39, 0x97, 0x2d, 0x7b, 0x88, 0xac, 0x40, 0x94, 0xa8, 0x02, 0x00, 0x00, 0x00, 0x00, 0x19, 0x76, 0xa9, 0x14, 0xc1, 0x09, 0x32, 0x48, 0x3f, 0xec, 0x93, 0xed, 0x51, 0xf5, 0xfe, 0x95, 0xe7, 0x25, 0x59, 0xf2, 0xcc, 0x70, 0x43, 0xf9, 0x88, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00};
      vector<unsigned char> vch(ch, ch + sizeof(ch) -1);
      CDataStream stream(vch, SER_DISK, CLIENT_VERSION);
      CTransaction tx;
      stream >> tx;
      CValidationState state;
      BOOST_CHECK_MESSAGE(tx.CheckTransaction(state) && state.IsValid(), "Simple deserialized transaction should be valid.");
  
      // Check that duplicate txins fail
      tx.vin.push_back(tx.vin[0]);
      BOOST_CHECK_MESSAGE(!tx.CheckTransaction(state) || !state.IsValid(), "Transaction with duplicate txins should be invalid.");
  }
  
  //
  // Helper: create two dummy transactions, each with
  // two outputs.  The first has 11 and 50 CENT outputs
  // paid to a TX_PUBKEY, the second 21 and 22 CENT outputs
  // paid to a TX_PUBKEYHASH.
  //
  static std::vector<CTransaction>
  SetupDummyInputs(CBasicKeyStore& keystoreRet, CCoinsView & coinsRet)
  {
      std::vector<CTransaction> dummyTransactions;
      dummyTransactions.resize(2);
  
      // Add some keys to the keystore:
      CKey key[4];
      for (int i = 0; i < 4; i++)
      {
          key[i].MakeNewKey(i % 2);
          keystoreRet.AddKey(key[i]);
      }
  
      // Create some dummy input transactions
      dummyTransactions[0].vout.resize(2);
      dummyTransactions[0].vout[0].nValue = 11*CENT;
      dummyTransactions[0].vout[0].scriptPubKey << key[0].GetPubKey() << OP_CHECKSIG;
      dummyTransactions[0].vout[1].nValue = 50*CENT;
      dummyTransactions[0].vout[1].scriptPubKey << key[1].GetPubKey() << OP_CHECKSIG;
      coinsRet.SetCoins(dummyTransactions[0].GetHash(), CCoins(dummyTransactions[0], 0));
  
      dummyTransactions[1].vout.resize(2);
      dummyTransactions[1].vout[0].nValue = 21*CENT;
      dummyTransactions[1].vout[0].scriptPubKey.SetDestination(key[2].GetPubKey().GetID());
      dummyTransactions[1].vout[1].nValue = 22*CENT;
      dummyTransactions[1].vout[1].scriptPubKey.SetDestination(key[3].GetPubKey().GetID());
      coinsRet.SetCoins(dummyTransactions[1].GetHash(), CCoins(dummyTransactions[1], 0));
  
      return dummyTransactions;
  }
  
  BOOST_AUTO_TEST_CASE(test_Get)
  {
      CBasicKeyStore keystore;
      CCoinsView coinsDummy;
      CCoinsViewCache coins(coinsDummy);
      std::vector<CTransaction> dummyTransactions = SetupDummyInputs(keystore, coins);
  
      CTransaction t1;
      t1.vin.resize(3);
      t1.vin[0].prevout.hash = dummyTransactions[0].GetHash();
      t1.vin[0].prevout.n = 1;
      t1.vin[0].scriptSig << std::vector<unsigned char>(65, 0);
      t1.vin[1].prevout.hash = dummyTransactions[1].GetHash();
      t1.vin[1].prevout.n = 0;
      t1.vin[1].scriptSig << std::vector<unsigned char>(65, 0) << std::vector<unsigned char>(33, 4);
      t1.vin[2].prevout.hash = dummyTransactions[1].GetHash();
      t1.vin[2].prevout.n = 1;
      t1.vin[2].scriptSig << std::vector<unsigned char>(65, 0) << std::vector<unsigned char>(33, 4);
      t1.vout.resize(2);
      t1.vout[0].nValue = 90*CENT;
      t1.vout[0].scriptPubKey << OP_1;
  
      BOOST_CHECK(t1.AreInputsStandard(coins));
      BOOST_CHECK_EQUAL(t1.GetValueIn(coins), (50+21+22)*CENT);
  
      // Adding extra junk to the scriptSig should make it non-standard:
      t1.vin[0].scriptSig << OP_11;
      BOOST_CHECK(!t1.AreInputsStandard(coins));
  
      // ... as should not having enough:
      t1.vin[0].scriptSig = CScript();
      BOOST_CHECK(!t1.AreInputsStandard(coins));
  }
  
  BOOST_AUTO_TEST_CASE(test_IsStandard)
  {
      CBasicKeyStore keystore;
      CCoinsView coinsDummy;
      CCoinsViewCache coins(coinsDummy);
      std::vector<CTransaction> dummyTransactions = SetupDummyInputs(keystore, coins);
  
      CTransaction t;
      t.vin.resize(1);
      t.vin[0].prevout.hash = dummyTransactions[0].GetHash();
      t.vin[0].prevout.n = 1;
      t.vin[0].scriptSig << std::vector<unsigned char>(65, 0);
      t.vout.resize(1);
      t.vout[0].nValue = 90*CENT;
      CKey key;
      key.MakeNewKey(true);
      t.vout[0].scriptPubKey.SetDestination(key.GetPubKey().GetID());
  
      BOOST_CHECK(t.IsStandard());
  
      t.vout[0].nValue = 5011; // dust
      // ModuaBit does not enforce isDust().  Per dust fees are considered sufficient as deterrant.
      // BOOST_CHECK(!t.IsStandard());
  
      t.vout[0].nValue = 6011; // not dust
      BOOST_CHECK(t.IsStandard());
  
      t.vout[0].scriptPubKey = CScript() << OP_1;
      BOOST_CHECK(!t.IsStandard());
  }
  
  BOOST_AUTO_TEST_SUITE_END()
  