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crate::ix!();
//-------------------------------------------[.cpp/bitcoin/src/test/sigopcount_tests.cpp]
/* ------------------- Helpers: ------------------- */
pub fn serialize(s: &Script) -> Vec<u8> {
todo!();
/*
std::vector<unsigned char> sSerialized(s.begin(), s.end());
return sSerialized;
*/
}
#[cfg(test)]
#[fixture(BasicTestingSetup)]
pub mod sigopcount_tests {
#[test] fn get_sig_op_count() {
todo!();
/*
// Test CScript::GetSigOpCount()
CScript s1;
BOOST_CHECK_EQUAL(s1.GetSigOpCount(false), 0U);
BOOST_CHECK_EQUAL(s1.GetSigOpCount(true), 0U);
u160 dummy;
s1 << OP_1 << ToByteVector(dummy) << ToByteVector(dummy) << OP_2 << OP_CHECKMULTISIG;
BOOST_CHECK_EQUAL(s1.GetSigOpCount(true), 2U);
s1 << OP_IF << OP_CHECKSIG << OP_ENDIF;
BOOST_CHECK_EQUAL(s1.GetSigOpCount(true), 3U);
BOOST_CHECK_EQUAL(s1.GetSigOpCount(false), 21U);
CScript p2sh = GetScriptForDestination(ScriptHash(s1));
CScript scriptSig;
scriptSig << OP_0 << Serialize(s1);
BOOST_CHECK_EQUAL(p2sh.GetSigOpCount(scriptSig), 3U);
std::vector<CPubKey> keys;
for (int i = 0; i < 3; i++)
{
CKey k;
k.MakeNewKey(true);
keys.push_back(k.GetPubKey());
}
CScript s2 = GetScriptForMultisig(1, keys);
BOOST_CHECK_EQUAL(s2.GetSigOpCount(true), 3U);
BOOST_CHECK_EQUAL(s2.GetSigOpCount(false), 20U);
p2sh = GetScriptForDestination(ScriptHash(s2));
BOOST_CHECK_EQUAL(p2sh.GetSigOpCount(true), 0U);
BOOST_CHECK_EQUAL(p2sh.GetSigOpCount(false), 0U);
CScript scriptSig2;
scriptSig2 << OP_1 << ToByteVector(dummy) << ToByteVector(dummy) << Serialize(s2);
BOOST_CHECK_EQUAL(p2sh.GetSigOpCount(scriptSig2), 3U);
*/
}
/**
| Verifies script execution of the zeroth
| scriptPubKey of tx output and zeroth
| scriptSig and witness of tx input.
|
*/
pub fn verify_with_flag(
output: &Transaction,
input: &MutableTransaction,
flags: u32) -> ScriptError {
todo!();
/*
ScriptError error;
CTransaction inputi(input);
bool ret = VerifyScript(inputi.vin[0].scriptSig, output.vout[0].scriptPubKey, &inputi.vin[0].scriptWitness, flags, TransactionSignatureChecker(&inputi, 0, output.vout[0].nValue, MissingDataBehavior::ASSERT_FAIL), &error);
BOOST_CHECK((ret == true) == (error == SCRIPT_ERR_OK));
return error;
*/
}
/**
| Builds a creationTx from scriptPubKey
| and a spendingTx from scriptSig and
| witness such that spendingTx spends
| output zero of creationTx.
|
| Also inserts creationTx's output into
| the coins view.
|
*/
pub fn build_txs(
spending_tx: &mut MutableTransaction,
coins: &mut CoinsViewCache,
creation_tx: &mut MutableTransaction,
script_pub_key: &Script,
script_sig: &Script,
witness: &ScriptWitness) {
todo!();
/*
creationTx.nVersion = 1;
creationTx.vin.resize(1);
creationTx.vin[0].prevout.SetNull();
creationTx.vin[0].scriptSig = CScript();
creationTx.vout.resize(1);
creationTx.vout[0].nValue = 1;
creationTx.vout[0].scriptPubKey = scriptPubKey;
spendingTx.nVersion = 1;
spendingTx.vin.resize(1);
spendingTx.vin[0].prevout.hash = creationTx.GetHash();
spendingTx.vin[0].prevout.n = 0;
spendingTx.vin[0].scriptSig = scriptSig;
spendingTx.vin[0].scriptWitness = witness;
spendingTx.vout.resize(1);
spendingTx.vout[0].nValue = 1;
spendingTx.vout[0].scriptPubKey = CScript();
AddCoins(coins, CTransaction(creationTx), 0);
*/
}
#[test] fn get_tx_sig_op_cost() {
todo!();
/*
// Transaction creates outputs
CMutableTransaction creationTx;
// Transaction that spends outputs and whose
// sig op cost is going to be tested
CMutableTransaction spendingTx;
// Create utxo set
CCoinsView coinsDummy;
CCoinsViewCache coins(&coinsDummy);
// Create key
CKey key;
key.MakeNewKey(true);
CPubKey pubkey = key.GetPubKey();
// Default flags
const uint32_t flags{SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH};
// Multisig script (legacy counting)
{
CScript scriptPubKey = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY;
// Do not use a valid signature to avoid using wallet operations.
CScript scriptSig = CScript() << OP_0 << OP_0;
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, CScriptWitness());
// Legacy counting only includes signature operations in scriptSigs and scriptPubKeys
// of a transaction and does not take the actual executed sig operations into account.
// spendingTx in itself does not contain a signature operation.
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 0);
// creationTx contains two signature operations in its scriptPubKey, but legacy counting
// is not accurate.
assert(GetTransactionSigOpCost(CTransaction(creationTx), coins, flags) == MAX_PUBKEYS_PER_MULTISIG * WITNESS_SCALE_FACTOR);
// Sanity check: script verification fails because of an invalid signature.
assert(VerifyWithFlag(CTransaction(creationTx), spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY);
}
// Multisig nested in P2SH
{
CScript redeemScript = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY;
CScript scriptPubKey = GetScriptForDestination(ScriptHash(redeemScript));
CScript scriptSig = CScript() << OP_0 << OP_0 << ToByteVector(redeemScript);
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, CScriptWitness());
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 2 * WITNESS_SCALE_FACTOR);
assert(VerifyWithFlag(CTransaction(creationTx), spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY);
}
// P2WPKH witness program
{
CScript scriptPubKey = GetScriptForDestination(WitnessV0KeyHash(pubkey));
CScript scriptSig = CScript();
CScriptWitness scriptWitness;
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, scriptWitness);
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 1);
// No signature operations if we don't verify the witness.
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags & ~SCRIPT_VERIFY_WITNESS) == 0);
assert(VerifyWithFlag(CTransaction(creationTx), spendingTx, flags) == SCRIPT_ERR_EQUALVERIFY);
// The sig op cost for witness version != 0 is zero.
assert(scriptPubKey[0] == 0x00);
scriptPubKey[0] = 0x51;
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, scriptWitness);
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 0);
scriptPubKey[0] = 0x00;
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, scriptWitness);
// The witness of a coinbase transaction is not taken into account.
spendingTx.vin[0].prevout.SetNull();
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 0);
}
// P2WPKH nested in P2SH
{
CScript scriptSig = GetScriptForDestination(WitnessV0KeyHash(pubkey));
CScript scriptPubKey = GetScriptForDestination(ScriptHash(scriptSig));
scriptSig = CScript() << ToByteVector(scriptSig);
CScriptWitness scriptWitness;
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, scriptWitness);
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 1);
assert(VerifyWithFlag(CTransaction(creationTx), spendingTx, flags) == SCRIPT_ERR_EQUALVERIFY);
}
// P2WSH witness program
{
CScript witnessScript = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY;
CScript scriptPubKey = GetScriptForDestination(WitnessV0ScriptHash(witnessScript));
CScript scriptSig = CScript();
CScriptWitness scriptWitness;
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
scriptWitness.stack.push_back(std::vector<unsigned char>(witnessScript.begin(), witnessScript.end()));
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, scriptWitness);
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 2);
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags & ~SCRIPT_VERIFY_WITNESS) == 0);
assert(VerifyWithFlag(CTransaction(creationTx), spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY);
}
// P2WSH nested in P2SH
{
CScript witnessScript = CScript() << 1 << ToByteVector(pubkey) << ToByteVector(pubkey) << 2 << OP_CHECKMULTISIGVERIFY;
CScript redeemScript = GetScriptForDestination(WitnessV0ScriptHash(witnessScript));
CScript scriptPubKey = GetScriptForDestination(ScriptHash(redeemScript));
CScript scriptSig = CScript() << ToByteVector(redeemScript);
CScriptWitness scriptWitness;
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
scriptWitness.stack.push_back(std::vector<unsigned char>(0));
scriptWitness.stack.push_back(std::vector<unsigned char>(witnessScript.begin(), witnessScript.end()));
BuildTxs(spendingTx, coins, creationTx, scriptPubKey, scriptSig, scriptWitness);
assert(GetTransactionSigOpCost(CTransaction(spendingTx), coins, flags) == 2);
assert(VerifyWithFlag(CTransaction(creationTx), spendingTx, flags) == SCRIPT_ERR_CHECKMULTISIGVERIFY);
}
*/
}
}