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Data-drive script evaluation unit tests.

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pull/2/merge
Gavin Andresen 13 years ago
parent 6a7a42be16
commit 8449a8788a
3 changed files with 253 additions and 0 deletions
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25
src/test/data/script_invalid.json
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[
["", ""],
["", "NOP"],
["NOP", ""],
["NOP","NOP"],
["0 1","EQUAL"],
["1 1 ADD", "0 EQUAL"],
["11 1 ADD 12 SUB", "11 EQUAL"],
["2147483648 0 ADD", "NOP", "arithmetic operands must be in range [-2^31...2^31] "],
["-2147483648 0 ADD", "NOP", "arithmetic operands must be in range [-2^31...2^31] "],
["2147483647 DUP ADD", "4294967294 NUMEQUAL", "NUMEQUAL must be in numeric range"],
["0xaabbccddeeff NOT", "0 EQUAL", "NOT is an arithmetic operand"],
["2 DUP MUL", "4 EQUAL", "disabled"],
["2 DUP DIV", "1 EQUAL", "disabled"],
["2 2MUL", "4 EQUAL", "disabled"],
["2 2DIV", "1 EQUAL", "disabled"],
["7 3 MOD", "1 EQUAL", "disabled"],
["2 2 LSHIFT", "8 EQUAL", "disabled"],
["2 1 RSHIFT", "1 EQUAL", "disabled"],
["NOP1","NOP10"]
]

78
src/test/data/script_valid.json
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[
["2 -2 ADD", "0 EQUAL"],
["2147483647 -2147483647 ADD", "0 EQUAL"],
["-1 -1 ADD", "-2 EQUAL"],
["1","NOP"],
["0 0","EQUAL"],
["1 1 ADD", "2 EQUAL"],
["1 1ADD", "2 EQUAL"],
["111 1SUB", "110 EQUAL"],
["111 1 ADD 12 SUB", "100 EQUAL"],
["0 ABS", "0 EQUAL"],
["16 ABS", "16 EQUAL"],
["-16 ABS", "-16 NEGATE EQUAL"],
["0 NOT", "NOP"],
["1 NOT", "0 EQUAL"],
["11 NOT", "0 EQUAL"],
["0 0NOTEQUAL", "0 EQUAL"],
["1 0NOTEQUAL", "1 EQUAL"],
["111 0NOTEQUAL", "1 EQUAL"],
["-111 0NOTEQUAL", "1 EQUAL"],
["1 1 BOOLAND", "NOP"],
["1 0 BOOLAND", "NOT"],
["0 1 BOOLAND", "NOT"],
["0 0 BOOLAND", "NOT"],
["16 17 BOOLAND", "NOP"],
["1 1 BOOLOR", "NOP"],
["1 0 BOOLOR", "NOP"],
["0 1 BOOLOR", "NOP"],
["0 0 BOOLOR", "NOT"],
["16 17 BOOLOR", "NOP"],
["11 10 1 ADD", "NUMEQUAL"],
["11 10 1 ADD", "NUMEQUALVERIFY 1"],
["11 10 1 ADD", "NUMNOTEQUAL NOT"],
["111 10 1 ADD", "NUMNOTEQUAL"],
["11 10", "LESSTHAN NOT"],
["4 4", "LESSTHAN NOT"],
["10 11", "LESSTHAN"],
["-11 11", "LESSTHAN"],
["-11 -10", "LESSTHAN"],
["11 10", "GREATERTHAN"],
["4 4", "GREATERTHAN NOT"],
["10 11", "GREATERTHAN NOT"],
["-11 11", "GREATERTHAN NOT"],
["-11 -10", "GREATERTHAN NOT"],
["11 10", "LESSTHANOREQUAL NOT"],
["4 4", "LESSTHANOREQUAL"],
["10 11", "LESSTHANOREQUAL"],
["-11 11", "LESSTHANOREQUAL"],
["-11 -10", "LESSTHANOREQUAL"],
["11 10", "GREATERTHANOREQUAL"],
["4 4", "GREATERTHANOREQUAL"],
["10 11", "GREATERTHANOREQUAL NOT"],
["-11 11", "GREATERTHANOREQUAL NOT"],
["-11 -10", "GREATERTHANOREQUAL NOT"],
["1 0 MIN", "0 NUMEQUAL"],
["0 1 MIN", "0 NUMEQUAL"],
["-1 0 MIN", "-1 NUMEQUAL"],
["0 -2147483647 MIN", "-2147483647 NUMEQUAL"],
["2147483647 0 MAX", "2147483647 NUMEQUAL"],
["0 100 MAX", "100 NUMEQUAL"],
["-100 0 MAX", "0 NUMEQUAL"],
["0 -2147483647 MAX", "0 NUMEQUAL"],
["0 0 1", "WITHIN"],
["1 0 1", "WITHIN NOT"],
["0 -2147483647 2147483647", "WITHIN"],
["-1 -100 100", "WITHIN"],
["11 -100 100", "WITHIN"],
["-2147483647 -100 100", "WITHIN NOT"],
["2147483647 -100 100", "WITHIN NOT"],
["2147483647 2147483647 SUB", "0 EQUAL"],
["2147483647 DUP ADD", "4294967294 EQUAL", ">32 bit EQUAL is valid"],
["2147483647 NEGATE DUP ADD", "-4294967294 EQUAL"],
["NOP","1"]
]

150
src/test/script_tests.cpp
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#include <iostream>
#include <fstream>
#include <vector>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/algorithm/string/replace.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/foreach.hpp>
#include "json/json_spirit_reader_template.h"
#include "json/json_spirit_writer_template.h"
#include "json/json_spirit_utils.h"
#include "main.h"
#include "wallet.h"
using namespace std;
using namespace json_spirit;
using namespace boost::algorithm;
extern uint256 SignatureHash(CScript scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType);
extern bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn,
bool fValidatePayToScriptHash, int nHashType);
CScript
ParseScript(string s)
{
CScript result;
static map<string, opcodetype> mapOpNames;
if (mapOpNames.size() == 0)
{
for (int op = OP_NOP; op <= OP_NOP10; op++)
{
const char* name = GetOpName((opcodetype)op);
if (strcmp(name, "OP_UNKNOWN") == 0)
continue;
string strName(name);
mapOpNames[strName] = (opcodetype)op;
// Convenience: OP_ADD and just ADD are both recognized:
replace_first(strName, "OP_", "");
mapOpNames[strName] = (opcodetype)op;
}
}
vector<string> words;
split(words, s, is_any_of(" \t\n"), token_compress_on);
BOOST_FOREACH(string w, words)
{
if (all(w, is_digit()) ||
(starts_with(w, "-") && all(string(w.begin()+1, w.end()), is_digit())))
{
// Number
int64 n = atoi64(w);
result << n;
}
else if (starts_with(w, "0x") && IsHex(string(w.begin()+2, w.end())))
{
// Hex data:
result << ParseHex(string(w.begin()+2, w.end()));
}
else if (s.size() >= 2 && starts_with(w, "'") && ends_with(w, "'"))
{
// Single-quoted string, pushed as data:
std::vector<unsigned char> value(s.begin()+1, s.end()-1);
result << value;
}
else if (mapOpNames.count(w))
{
// opcode, e.g. OP_ADD or OP_1:
result << mapOpNames[w];
}
else
{
BOOST_ERROR("Parse error: " << s);
return CScript();
}
}
return result;
}
Array
read_json(const std::string& filename)
{
namespace fs = boost::filesystem;
fs::path testFile = fs::current_path() / "test" / "data" / filename;
if (!fs::exists(testFile))
{
fs::path testFile = fs::path(__FILE__).parent_path() / "data" / filename;
}
ifstream ifs(testFile.string().c_str(), ifstream::in);
Value v;
if (!read_stream(ifs, v))
{
BOOST_ERROR("Cound not find/open " << filename);
return Array();
}
if (v.type() != array_type)
{
BOOST_ERROR(filename << " does not contain a json array");
return Array();
}
return v.get_array();
}
BOOST_AUTO_TEST_SUITE(script_tests)
BOOST_AUTO_TEST_CASE(script_valid)
{
// Read tests from test/data/script_valid.json
// Format is an array of arrays
// Inner arrays are [ "scriptSig", "scriptPubKey" ]
// ... where scriptSig and scriptPubKey are stringified
// scripts.
Array tests = read_json("script_valid.json");
BOOST_FOREACH(Value& tv, tests)
{
Array test = tv.get_array();
string strTest = write_string(tv, false);
if (test.size() < 2) // Allow size > 2; extra stuff ignored (useful for comments)
{
BOOST_ERROR("Bad test: " << strTest);
continue;
}
string scriptSigString = test[0].get_str();
CScript scriptSig = ParseScript(scriptSigString);
string scriptPubKeyString = test[1].get_str();
CScript scriptPubKey = ParseScript(scriptPubKeyString);
CTransaction tx;
BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, tx, 0, true, SIGHASH_NONE), strTest);
}
}
BOOST_AUTO_TEST_CASE(script_invalid)
{
// Scripts that should evaluate as invalid
Array tests = read_json("script_invalid.json");
BOOST_FOREACH(Value& tv, tests)
{
Array test = tv.get_array();
string strTest = write_string(tv, false);
if (test.size() < 2) // Allow size > 2; extra stuff ignored (useful for comments)
{
BOOST_ERROR("Bad test: " << strTest);
continue;
}
string scriptSigString = test[0].get_str();
CScript scriptSig = ParseScript(scriptSigString);
string scriptPubKeyString = test[1].get_str();
CScript scriptPubKey = ParseScript(scriptPubKeyString);
CTransaction tx;
BOOST_CHECK_MESSAGE(!VerifyScript(scriptSig, scriptPubKey, tx, 0, true, SIGHASH_NONE), strTest);
}
}
BOOST_AUTO_TEST_CASE(script_PushData)
{
// Check that PUSHDATA1, PUSHDATA2, and PUSHDATA4 create the same value on

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