Line data    Source code

       1             : // Copyright (c) 2019-2020 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <coins.h>
       6             : #include <script/signingprovider.h>
       7             : #include <test/util/transaction_utils.h>
       8             : 
       9           0 : CMutableTransaction BuildCreditingTransaction(const CScript& scriptPubKey, int nValue)
      10             : {
      11           0 :     CMutableTransaction txCredit;
      12           0 :     txCredit.nVersion = 1;
      13           0 :     txCredit.nLockTime = 0;
      14           0 :     txCredit.vin.resize(1);
      15           0 :     txCredit.vout.resize(1);
      16           0 :     txCredit.vin[0].prevout.SetNull();
      17           0 :     txCredit.vin[0].scriptSig = CScript() << CScriptNum(0) << CScriptNum(0);
      18           0 :     txCredit.vin[0].nSequence = CTxIn::SEQUENCE_FINAL;
      19           0 :     txCredit.vout[0].scriptPubKey = scriptPubKey;
      20           0 :     txCredit.vout[0].nValue = nValue;
      21             : 
      22           0 :     return txCredit;
      23           0 : }
      24             : 
      25           0 : CMutableTransaction BuildSpendingTransaction(const CScript& scriptSig, const CScriptWitness& scriptWitness, const CTransaction& txCredit)
      26             : {
      27           0 :     CMutableTransaction txSpend;
      28           0 :     txSpend.nVersion = 1;
      29           0 :     txSpend.nLockTime = 0;
      30           0 :     txSpend.vin.resize(1);
      31           0 :     txSpend.vout.resize(1);
      32           0 :     txSpend.vin[0].scriptWitness = scriptWitness;
      33           0 :     txSpend.vin[0].prevout.hash = txCredit.GetHash();
      34           0 :     txSpend.vin[0].prevout.n = 0;
      35           0 :     txSpend.vin[0].scriptSig = scriptSig;
      36           0 :     txSpend.vin[0].nSequence = CTxIn::SEQUENCE_FINAL;
      37           0 :     txSpend.vout[0].scriptPubKey = CScript();
      38           0 :     txSpend.vout[0].nValue = txCredit.vout[0].nValue;
      39             : 
      40           0 :     return txSpend;
      41           0 : }
      42             : 
      43           0 : std::vector<CMutableTransaction> SetupDummyInputs(FillableSigningProvider& keystoreRet, CCoinsViewCache& coinsRet, const std::array<CAmount,4>& nValues)
      44             : {
      45           0 :     std::vector<CMutableTransaction> dummyTransactions;
      46           0 :     dummyTransactions.resize(2);
      47             : 
      48             :     // Add some keys to the keystore:
      49           0 :     CKey key[4];
      50           0 :     for (int i = 0; i < 4; i++) {
      51           0 :         key[i].MakeNewKey(i % 2);
      52           0 :         keystoreRet.AddKey(key[i]);
      53           0 :     }
      54             : 
      55             :     // Create some dummy input transactions
      56           0 :     dummyTransactions[0].vout.resize(2);
      57           0 :     dummyTransactions[0].vout[0].nValue = nValues[0];
      58           0 :     dummyTransactions[0].vout[0].scriptPubKey << ToByteVector(key[0].GetPubKey()) << OP_CHECKSIG;
      59           0 :     dummyTransactions[0].vout[1].nValue = nValues[1];
      60           0 :     dummyTransactions[0].vout[1].scriptPubKey << ToByteVector(key[1].GetPubKey()) << OP_CHECKSIG;
      61           0 :     AddCoins(coinsRet, CTransaction(dummyTransactions[0]), 0);
      62             : 
      63           0 :     dummyTransactions[1].vout.resize(2);
      64           0 :     dummyTransactions[1].vout[0].nValue = nValues[2];
      65           0 :     dummyTransactions[1].vout[0].scriptPubKey = GetScriptForDestination(PKHash(key[2].GetPubKey()));
      66           0 :     dummyTransactions[1].vout[1].nValue = nValues[3];
      67           0 :     dummyTransactions[1].vout[1].scriptPubKey = GetScriptForDestination(PKHash(key[3].GetPubKey()));
      68           0 :     AddCoins(coinsRet, CTransaction(dummyTransactions[1]), 0);
      69             : 
      70           0 :     return dummyTransactions;
      71           0 : }