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// Copyright (c) 2011-2016 The Bitcoin Core developers
// 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 "chainparams.h"
#include "config.h"
#include "consensus/consensus.h"
#include "primitives/transaction.h"
#include "test/test_bitcoin.h"
#include "util.h"
#include "validation.h"
#include <cstdint>
#include <cstdio>
#include <vector>
#include <boost/test/unit_test.hpp>
static CBlock makeLargeDummyBlock(const size_t num_tx) {
CBlock block;
block.vtx.reserve(num_tx);
CTransaction tx;
for (size_t i = 0; i < num_tx; i++) {
block.vtx.push_back(MakeTransactionRef(tx));
}
return block;
}
BOOST_FIXTURE_TEST_SUITE(validation_tests, TestingSetup)
/** Test that LoadExternalBlockFile works with the buffer size set
below the size of a large block. Currently, LoadExternalBlockFile has the
buffer size for CBufferedFile set to 2 * MAX_TX_SIZE. Test with a value
of 10 * MAX_TX_SIZE. */
BOOST_AUTO_TEST_CASE(validation_load_external_block_file) {
fs::path tmpfile_name =
pathTemp / strprintf("vlebf_test_%lu_%i", (unsigned long)GetTime(),
(int)(InsecureRandRange(100000)));
FILE *fp = fopen(tmpfile_name.string().c_str(), "wb+");
BOOST_CHECK(fp != nullptr);
const Config &config = GetConfig();
const CChainParams &chainparams = config.GetChainParams();
// serialization format is:
// message start magic, size of block, block
size_t nwritten = fwrite(std::begin(chainparams.DiskMagic()),
CMessageHeader::MESSAGE_START_SIZE, 1, fp);
BOOST_CHECK_EQUAL(nwritten, 1UL);
CTransaction empty_tx;
size_t empty_tx_size = GetSerializeSize(empty_tx, SER_DISK, CLIENT_VERSION);
size_t num_tx = (10 * MAX_TX_SIZE) / empty_tx_size;
CBlock block = makeLargeDummyBlock(num_tx);
BOOST_CHECK(GetSerializeSize(block, SER_DISK, CLIENT_VERSION) >
2 * MAX_TX_SIZE);
unsigned int size = GetSerializeSize(block, SER_DISK, CLIENT_VERSION);
{
CAutoFile outs(fp, SER_DISK, CLIENT_VERSION);
outs << size;
outs << block;
outs.release();
}
fseek(fp, 0, SEEK_SET);
BOOST_CHECK_NO_THROW({ LoadExternalBlockFile(config, fp, 0); });
}
BOOST_AUTO_TEST_SUITE_END()

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