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script: check ScriptError values in script tests

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This commit is contained in:
Cory Fields 2014-11-13 14:27:38 -05:00
parent ab9edbd6b6
commit 219a1470c4
4 changed files with 94 additions and 38 deletions
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37
src/test/multisig_tests.cpp
View File

@ -6,6 +6,7 @@
#include "keystore.h"
#include "main.h"
#include "script/script.h"
#include "script/script_error.h"
#include "script/interpreter.h"
#include "script/sign.h"
#include "uint256.h"
@ -46,6 +47,7 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
{
unsigned int flags = SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_STRICTENC;
ScriptError err;
CKey key[4];
for (int i = 0; i < 4; i++)
key[i].MakeNewKey(true);
@ -82,19 +84,22 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
keys.clear();
keys += key[0],key[1]; // magic operator+= from boost.assign
s = sign_multisig(a_and_b, keys, txTo[0], 0);
BOOST_CHECK(VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0)));
BOOST_CHECK(VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
for (int i = 0; i < 4; i++)
{
keys.clear();
keys += key[i];
s = sign_multisig(a_and_b, keys, txTo[0], 0);
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0)), strprintf("a&b 1: %d", i));
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0), &err), strprintf("a&b 1: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err));
keys.clear();
keys += key[1],key[i];
s = sign_multisig(a_and_b, keys, txTo[0], 0);
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0)), strprintf("a&b 2: %d", i));
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0), &err), strprintf("a&b 2: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
// Test a OR b:
@ -104,16 +109,24 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
keys += key[i];
s = sign_multisig(a_or_b, keys, txTo[1], 0);
if (i == 0 || i == 1)
BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0)), strprintf("a|b: %d", i));
{
BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err), strprintf("a|b: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
else
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0)), strprintf("a|b: %d", i));
{
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err), strprintf("a|b: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
}
s.clear();
s << OP_0 << OP_0;
BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0)));
BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
s.clear();
s << OP_0 << OP_1;
BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0)));
BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
for (int i = 0; i < 4; i++)
@ -123,9 +136,15 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
keys += key[i],key[j];
s = sign_multisig(escrow, keys, txTo[2], 0);
if (i < j && i < 3 && j < 3)
BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, flags, SignatureChecker(txTo[2], 0)), strprintf("escrow 1: %d %d", i, j));
{
BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, flags, SignatureChecker(txTo[2], 0), &err), strprintf("escrow 1: %d %d", i, j));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
else
BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, flags, SignatureChecker(txTo[2], 0)), strprintf("escrow 2: %d %d", i, j));
{
BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, flags, SignatureChecker(txTo[2], 0), &err), strprintf("escrow 2: %d %d", i, j));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
}
}

19
src/test/script_P2SH_tests.cpp
View File

@ -6,6 +6,7 @@
#include "keystore.h"
#include "main.h"
#include "script/script.h"
#include "script/script_error.h"
#include "script/sign.h"
#ifdef ENABLE_WALLET
@ -27,7 +28,7 @@ Serialize(const CScript& s)
}
static bool
Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict)
Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict, ScriptError& err)
{
// Create dummy to/from transactions:
CMutableTransaction txFrom;
@ -42,7 +43,7 @@ Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict)
txTo.vin[0].scriptSig = scriptSig;
txTo.vout[0].nValue = 1;
return VerifyScript(scriptSig, scriptPubKey, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, SignatureChecker(txTo, 0));
return VerifyScript(scriptSig, scriptPubKey, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, SignatureChecker(txTo, 0), &err);
}
@ -124,6 +125,7 @@ BOOST_AUTO_TEST_CASE(sign)
BOOST_AUTO_TEST_CASE(norecurse)
{
ScriptError err;
// Make sure only the outer pay-to-script-hash does the
// extra-validation thing:
CScript invalidAsScript;
@ -135,7 +137,8 @@ BOOST_AUTO_TEST_CASE(norecurse)
scriptSig << Serialize(invalidAsScript);
// Should not verify, because it will try to execute OP_INVALIDOPCODE
BOOST_CHECK(!Verify(scriptSig, p2sh, true));
BOOST_CHECK(!Verify(scriptSig, p2sh, true, err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_BAD_OPCODE, ScriptErrorString(err));
// Try to recur, and verification should succeed because
// the inner HASH160 <> EQUAL should only check the hash:
@ -143,7 +146,8 @@ BOOST_AUTO_TEST_CASE(norecurse)
CScript scriptSig2;
scriptSig2 << Serialize(invalidAsScript) << Serialize(p2sh);
BOOST_CHECK(Verify(scriptSig2, p2sh2, true));
BOOST_CHECK(Verify(scriptSig2, p2sh2, true, err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
BOOST_AUTO_TEST_CASE(set)
@ -238,6 +242,7 @@ BOOST_AUTO_TEST_CASE(switchover)
{
// Test switch over code
CScript notValid;
ScriptError err;
notValid << OP_11 << OP_12 << OP_EQUALVERIFY;
CScript scriptSig;
scriptSig << Serialize(notValid);
@ -246,9 +251,11 @@ BOOST_AUTO_TEST_CASE(switchover)
// Validation should succeed under old rules (hash is correct):
BOOST_CHECK(Verify(scriptSig, fund, false));
BOOST_CHECK(Verify(scriptSig, fund, false, err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
// Fail under new:
BOOST_CHECK(!Verify(scriptSig, fund, true));
BOOST_CHECK(!Verify(scriptSig, fund, true, err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EQUALVERIFY, ScriptErrorString(err));
}
BOOST_AUTO_TEST_CASE(AreInputsStandard)

66
src/test/script_tests.cpp
View File

@ -10,6 +10,7 @@
#include "keystore.h"
#include "main.h"
#include "script/script.h"
#include "script/script_error.h"
#include "script/sign.h"
#include "util.h"
@ -92,7 +93,9 @@ CMutableTransaction BuildSpendingTransaction(const CScript& scriptSig, const CMu
void DoTest(const CScript& scriptPubKey, const CScript& scriptSig, int flags, bool expect, const std::string& message)
{
BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, flags, SignatureChecker(BuildSpendingTransaction(scriptSig, BuildCreditingTransaction(scriptPubKey)), 0)) == expect, message);
ScriptError err;
BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, flags, SignatureChecker(BuildSpendingTransaction(scriptSig, BuildCreditingTransaction(scriptPubKey)), 0), &err) == expect, message);
BOOST_CHECK_MESSAGE(expect == (err == SCRIPT_ERR_OK), std::string(ScriptErrorString(err)) + ": " + message);
}
void static NegateSignatureS(std::vector<unsigned char>& vchSig) {
@ -590,20 +593,25 @@ BOOST_AUTO_TEST_CASE(script_PushData)
static const unsigned char pushdata2[] = { OP_PUSHDATA2, 1, 0, 0x5a };
static const unsigned char pushdata4[] = { OP_PUSHDATA4, 1, 0, 0, 0, 0x5a };
ScriptError err;
vector<vector<unsigned char> > directStack;
BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), true, BaseSignatureChecker()));
BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), true, BaseSignatureChecker(), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
vector<vector<unsigned char> > pushdata1Stack;
BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), true, BaseSignatureChecker()));
BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), true, BaseSignatureChecker(), &err));
BOOST_CHECK(pushdata1Stack == directStack);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
vector<vector<unsigned char> > pushdata2Stack;
BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), true, BaseSignatureChecker()));
BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), true, BaseSignatureChecker(), &err));
BOOST_CHECK(pushdata2Stack == directStack);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
vector<vector<unsigned char> > pushdata4Stack;
BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), true, BaseSignatureChecker()));
BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), true, BaseSignatureChecker(), &err));
BOOST_CHECK(pushdata4Stack == directStack);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
CScript
@ -640,6 +648,7 @@ sign_multisig(CScript scriptPubKey, const CKey &key, CTransaction transaction)
BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12)
{
ScriptError err;
CKey key1, key2, key3;
key1.MakeNewKey(true);
key2.MakeNewKey(false);
@ -652,19 +661,24 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12)
CMutableTransaction txTo12 = BuildSpendingTransaction(CScript(), txFrom12);
CScript goodsig1 = sign_multisig(scriptPubKey12, key1, txTo12);
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0)));
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
txTo12.vout[0].nValue = 2;
BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0)));
BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
CScript goodsig2 = sign_multisig(scriptPubKey12, key2, txTo12);
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, flags, SignatureChecker(txTo12, 0)));
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
CScript badsig1 = sign_multisig(scriptPubKey12, key3, txTo12);
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0)));
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23)
{
ScriptError err;
CKey key1, key2, key3, key4;
key1.MakeNewKey(true);
key2.MakeNewKey(false);
@ -680,46 +694,55 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23)
std::vector<CKey> keys;
keys.push_back(key1); keys.push_back(key2);
CScript goodsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
keys.clear();
keys.push_back(key1); keys.push_back(key3);
CScript goodsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
keys.clear();
keys.push_back(key2); keys.push_back(key3);
CScript goodsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
keys.clear();
keys.push_back(key2); keys.push_back(key2); // Can't re-use sig
CScript badsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key2); keys.push_back(key1); // sigs must be in correct order
CScript badsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key3); keys.push_back(key2); // sigs must be in correct order
CScript badsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key4); keys.push_back(key2); // sigs must match pubkeys
CScript badsig4 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key1); keys.push_back(key4); // sigs must match pubkeys
CScript badsig5 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear(); // Must have signatures
CScript badsig6 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, flags, SignatureChecker(txTo23, 0)));
BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err));
}
BOOST_AUTO_TEST_CASE(script_combineSigs)
@ -833,11 +856,13 @@ BOOST_AUTO_TEST_CASE(script_combineSigs)
BOOST_AUTO_TEST_CASE(script_standard_push)
{
ScriptError err;
for (int i=0; i<67000; i++) {
CScript script;
script << i;
BOOST_CHECK_MESSAGE(script.IsPushOnly(), "Number " << i << " is not pure push.");
BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker()), "Number " << i << " push is not minimal data.");
BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker(), &err), "Number " << i << " push is not minimal data.");
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
for (unsigned int i=0; i<=MAX_SCRIPT_ELEMENT_SIZE; i++) {
@ -845,7 +870,8 @@ BOOST_AUTO_TEST_CASE(script_standard_push)
CScript script;
script << data;
BOOST_CHECK_MESSAGE(script.IsPushOnly(), "Length " << i << " is not pure push.");
BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker()), "Length " << i << " push is not minimal data.");
BOOST_CHECK_MESSAGE(VerifyScript(script, CScript() << OP_1, SCRIPT_VERIFY_MINIMALDATA, BaseSignatureChecker(), &err), "Length " << i << " push is not minimal data.");
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
}

10
src/test/transaction_tests.cpp
View File

@ -10,6 +10,7 @@
#include "keystore.h"
#include "main.h"
#include "script/script.h"
#include "script/script_error.h"
#include "core_io.h"
#include <map>
@ -86,6 +87,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
// verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
Array tests = read_json(std::string(json_tests::tx_valid, json_tests::tx_valid + sizeof(json_tests::tx_valid)));
ScriptError err;
BOOST_FOREACH(Value& tv, tests)
{
Array test = tv.get_array();
@ -142,8 +144,9 @@ BOOST_AUTO_TEST_CASE(tx_valid)
unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
BOOST_CHECK_MESSAGE(VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
verify_flags, SignatureChecker(tx, i)),
verify_flags, SignatureChecker(tx, i), &err),
strTest);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
}
}
@ -160,6 +163,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
// verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
Array tests = read_json(std::string(json_tests::tx_invalid, json_tests::tx_invalid + sizeof(json_tests::tx_invalid)));
ScriptError err;
BOOST_FOREACH(Value& tv, tests)
{
Array test = tv.get_array();
@ -215,10 +219,10 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
fValid = VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
verify_flags, SignatureChecker(tx, i));
verify_flags, SignatureChecker(tx, i), &err);
}
BOOST_CHECK_MESSAGE(!fValid, strTest);
BOOST_CHECK_MESSAGE(err != SCRIPT_ERR_OK, ScriptErrorString(err));
}
}
}