Differential D1412 Diff 3883 src/test/script_commitment_tests.cpp

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src/test/script_commitment_tests.cpp

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				// Copyright (c) 2017 The Bitcoin developers
				// Distributed under the MIT software license, see the accompanying
				// file COPYING or http://www.opensource.org/licenses/mit-license.php.

				#include "script/script.h"
				#include "test/test_bitcoin.h"

				#include "chainparams.h"
				#include "config.h"
				#include "consensus/validation.h"
				#include "validation.h"

				#include <boost/test/unit_test.hpp>

				#include <string>
				#include <vector>

				BOOST_FIXTURE_TEST_SUITE(script_commitmenet_tests, BasicTestingSetup)

				BOOST_AUTO_TEST_CASE(test_is_commitment) {
				std::vector<uint8_t> data{};

				// Empty commitment.
				auto s = CScript() << OP_RETURN << data;
				BOOST_CHECK(s.IsCommitment(data));

				// Commitment to a value of the wrong size.
				data.push_back(42);
				BOOST_CHECK(!s.IsCommitment(data));

				// Not a commitment.
				s = CScript() << data;
				BOOST_CHECK(!s.IsCommitment(data));

				// Non empty commitment.
				s = CScript() << OP_RETURN << data;
				BOOST_CHECK(s.IsCommitment(data));

				// Commitment to the wrong value.
				data[0] = 0x42;
				BOOST_CHECK(!s.IsCommitment(data));

				// Commitment to a larger value.
				std::string str = "Bitcoin: A peer-to-peer Electronic Cash System";
				data = std::vector<uint8_t>(str.begin(), str.end());
				BOOST_CHECK(!s.IsCommitment(data));

				s = CScript() << OP_RETURN << data;
				BOOST_CHECK(s.IsCommitment(data));

				// 64 bytes commitment, still valid.
				data.resize(64);
				s = CScript() << OP_RETURN << data;
				BOOST_CHECK(s.IsCommitment(data));

				// Commitment is too large.
				data.push_back(23);
				s = CScript() << OP_RETURN << data;
				BOOST_CHECK(!s.IsCommitment(data));
				}

				BOOST_AUTO_TEST_SUITE_END()