diff options
| -rw-r--r-- | src/test/util/setup_common.cpp | 49 | ||||
| -rw-r--r-- | src/test/util/setup_common.h | 17 |
2 files changed, 66 insertions, 0 deletions
diff --git a/src/test/util/setup_common.cpp b/src/test/util/setup_common.cpp index 790329004c..03ab3f523d 100644 --- a/src/test/util/setup_common.cpp +++ b/src/test/util/setup_common.cpp @@ -260,6 +260,55 @@ CBlock TestChain100Setup::CreateAndProcessBlock(const std::vector<CMutableTransa return block; } + +CMutableTransaction TestChain100Setup::CreateValidMempoolTransaction(CTransactionRef input_transaction, + int input_vout, + int input_height, + CKey input_signing_key, + CScript output_destination, + CAmount output_amount) +{ + // Transaction we will submit to the mempool + CMutableTransaction mempool_txn; + + // Create an input + COutPoint outpoint_to_spend(input_transaction->GetHash(), input_vout); + CTxIn input(outpoint_to_spend); + mempool_txn.vin.push_back(input); + + // Create an output + CTxOut output(output_amount, output_destination); + mempool_txn.vout.push_back(output); + + // Sign the transaction + // - Add the signing key to a keystore + FillableSigningProvider keystore; + keystore.AddKey(input_signing_key); + // - Populate a CoinsViewCache with the unspent output + CCoinsView coins_view; + CCoinsViewCache coins_cache(&coins_view); + AddCoins(coins_cache, *input_transaction.get(), input_height); + // - Use GetCoin to properly populate utxo_to_spend, + Coin utxo_to_spend; + assert(coins_cache.GetCoin(outpoint_to_spend, utxo_to_spend)); + // - Then add it to a map to pass in to SignTransaction + std::map<COutPoint, Coin> input_coins; + input_coins.insert({outpoint_to_spend, utxo_to_spend}); + // - Default signature hashing type + int nHashType = SIGHASH_ALL; + std::map<int, std::string> input_errors; + assert(SignTransaction(mempool_txn, &keystore, input_coins, nHashType, input_errors)); + + // Add transaction to the mempool + { + LOCK(cs_main); + const MempoolAcceptResult result = AcceptToMemoryPool(*m_node.mempool.get(), MakeTransactionRef(mempool_txn), /* bypass_limits */ false); + assert(result.m_result_type == MempoolAcceptResult::ResultType::VALID); + } + + return mempool_txn; +} + TestChain100Setup::~TestChain100Setup() { gArgs.ForceSetArg("-segwitheight", "0"); diff --git a/src/test/util/setup_common.h b/src/test/util/setup_common.h index 4be4763f35..33f24e7c44 100644 --- a/src/test/util/setup_common.h +++ b/src/test/util/setup_common.h @@ -123,6 +123,23 @@ struct TestChain100Setup : public RegTestingSetup { //! Mine a series of new blocks on the active chain. void mineBlocks(int num_blocks); + /** + * Create a transaction and submit to the mempool. + * + * @param input_transaction The transaction to spend + * @param input_vout The vout to spend from the input_transaction + * @param input_height The height of the block that included the input_transaction + * @param input_signing_key The key to spend the input_transaction + * @param output_destination Where to send the output + * @param output_amount How much to send + */ + CMutableTransaction CreateValidMempoolTransaction(CTransactionRef input_transaction, + int input_vout, + int input_height, + CKey input_signing_key, + CScript output_destination, + CAmount output_amount = CAmount(1 * COIN)); + ~TestChain100Setup(); bool m_deterministic; |