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// (C) COPYRIGHT 2018 Reimar Döffinger
// Based on zstd_test.cpp by:
// (C) COPYRIGHT 2017 ARM Limited
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
// (C) Copyright 2004-2007 Jonathan Turkanis
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
// See http://www.boost.org/libs/iostreams for documentation.
// Note: basically a copy-paste of the gzip test
#include <cstddef>
#include <string>
#include <boost/iostreams/copy.hpp>
#include <boost/iostreams/device/array.hpp>
#include <boost/iostreams/device/back_inserter.hpp>
#include <boost/iostreams/filter/zstd.hpp>
#include <boost/iostreams/filter/test.hpp>
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/ref.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include "detail/sequence.hpp"
#include "detail/verification.hpp"
using namespace boost;
using namespace boost::iostreams;
using namespace boost::iostreams::test;
namespace io = boost::iostreams;
using boost::unit_test::test_suite;
template<class T> struct basic_test_alloc: std::allocator<T>
{
basic_test_alloc()
{
}
basic_test_alloc( basic_test_alloc const& /*other*/ )
{
}
template<class U>
basic_test_alloc( basic_test_alloc<U> const & /*other*/ )
{
}
template<class U> struct rebind
{
typedef basic_test_alloc<U> other;
};
};
typedef basic_test_alloc<char> zstd_alloc;
void compression_test()
{
text_sequence data;
// Test compression and decompression with custom allocator
BOOST_CHECK(
test_filter_pair( basic_zstd_compressor<zstd_alloc>(),
basic_zstd_decompressor<zstd_alloc>(),
std::string(data.begin(), data.end()) )
);
}
void multiple_member_test()
{
text_sequence data;
std::vector<char> temp, dest;
// Write compressed data to temp, twice in succession
filtering_ostream out;
out.push(zstd_compressor());
out.push(io::back_inserter(temp));
io::copy(make_iterator_range(data), out);
out.push(io::back_inserter(temp));
io::copy(make_iterator_range(data), out);
BOOST_CHECK(std::equal(temp.begin(), temp.begin() + temp.size()/2, temp.begin() + temp.size()/2));
// Read compressed data from temp into dest
filtering_istream in;
in.push(zstd_decompressor());
in.push(array_source(&temp[0], temp.size()));
io::copy(in, io::back_inserter(dest));
// Check that dest consists of two copies of data
BOOST_REQUIRE_EQUAL(data.size() * 2, dest.size());
BOOST_CHECK(std::equal(data.begin(), data.end(), dest.begin()));
BOOST_CHECK(std::equal(data.begin(), data.end(), dest.begin() + dest.size() / 2));
dest.clear();
io::copy(
array_source(&temp[0], temp.size()),
io::compose(zstd_decompressor(), io::back_inserter(dest)));
// Check that dest consists of two copies of data
BOOST_REQUIRE_EQUAL(data.size() * 2, dest.size());
BOOST_CHECK(std::equal(data.begin(), data.end(), dest.begin()));
BOOST_CHECK(std::equal(data.begin(), data.end(), dest.begin() + dest.size() / 2));
}
void array_source_test()
{
std::string data = "simple test string.";
std::string encoded;
filtering_ostream out;
out.push(zstd_compressor());
out.push(io::back_inserter(encoded));
io::copy(make_iterator_range(data), out);
std::string res;
io::array_source src(encoded.data(),encoded.length());
io::copy(io::compose(io::zstd_decompressor(), src), io::back_inserter(res));
BOOST_CHECK_EQUAL(data, res);
}
void empty_file_test()
{
// This test is in response to https://svn.boost.org/trac/boost/ticket/5237
// The previous implementation of gzip_compressor only wrote the gzip file
// header when the first bytes of uncompressed input were processed, causing
// incorrect behavior for empty files
BOOST_CHECK(
test_filter_pair( zstd_compressor(),
zstd_decompressor(),
std::string() )
);
}
void multipart_test()
{
// This test verifies that the zstd_decompressor properly handles a file
// that consists of multiple concatenated files (matches unzstd behaviour)
static const char multipart_file[] = {
'\x28', '\xb5', '\x2f', '\xfd', '\x24', '\x15', '\x95', '\x00', '\x00', '\x50', '\x4c', '\x69',
'\x6e', '\x65', '\x20', '\x31', '\x0a', '\x32', '\x33', '\x0a', '\x02', '\x00', '\x60', '\x84',
'\xae', '\x62', '\x04', '\x19', '\xf8', '\xe1', '\x2d', '\x28', '\xb5', '\x2f', '\xfd', '\x24',
'\x15', '\x95', '\x00', '\x00', '\x50', '\x4c', '\x69', '\x6e', '\x65', '\x20', '\x34', '\x0a',
'\x35', '\x36', '\x0a', '\x02', '\x00', '\x60', '\x84', '\xae', '\x62', '\x04', '\x5f', '\xcf',
'\xd5', '\xb8', '\x28', '\xb5', '\x2f', '\xfd', '\x24', '\x00', '\x01', '\x00', '\x00', '\x99',
'\xe9', '\xd8', '\x51', '\x28', '\xb5', '\x2f', '\xfd', '\x24', '\x15', '\x95', '\x00', '\x00',
'\x50', '\x4c', '\x69', '\x6e', '\x65', '\x20', '\x37', '\x0a', '\x38', '\x39', '\x0a', '\x02',
'\x00', '\x60', '\x84', '\xae', '\x62', '\x04', '\x94', '\x13', '\xdb', '\xae'
};
filtering_istream in;
std::string line;
in.push(zstd_decompressor());
in.push(io::array_source(multipart_file, sizeof(multipart_file)));
// First part
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 1", line);
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 2", line);
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 3", line);
// Second part immediately follows
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 4", line);
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 5", line);
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 6", line);
// Then an empty part, followed by one last 3-line part.
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 7", line);
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 8", line);
std::getline(in, line);
BOOST_CHECK_EQUAL("Line 9", line);
// Check for zstd errors too.
BOOST_CHECK(!in.bad());
}
test_suite* init_unit_test_suite(int, char* [])
{
test_suite* test = BOOST_TEST_SUITE("zstd test");
test->add(BOOST_TEST_CASE(&compression_test));
test->add(BOOST_TEST_CASE(&multiple_member_test));
test->add(BOOST_TEST_CASE(&array_source_test));
test->add(BOOST_TEST_CASE(&empty_file_test));
test->add(BOOST_TEST_CASE(&multipart_test));
return test;
}
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