122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
|
|
//
|
|
// 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)
|
|
//
|
|
#include "td/utils/buffer.h"
|
|
#include "td/utils/ByteFlow.h"
|
|
#include "td/utils/common.h"
|
|
#include "td/utils/Gzip.h"
|
|
#include "td/utils/GzipByteFlow.h"
|
|
#include "td/utils/logging.h"
|
|
#include "td/utils/Status.h"
|
|
#include "td/utils/tests.h"
|
|
#include "td/utils/Time.h"
|
|
|
|
static void encode_decode(td::string s) {
|
|
auto r = td::gzencode(s, 2);
|
|
ASSERT_TRUE(!r.empty());
|
|
ASSERT_EQ(s, td::gzdecode(r.as_slice()));
|
|
}
|
|
|
|
TEST(Gzip, gzencode_gzdecode) {
|
|
encode_decode(td::rand_string(0, 255, 1000));
|
|
encode_decode(td::rand_string('a', 'z', 1000000));
|
|
encode_decode(td::string(1000000, 'a'));
|
|
}
|
|
|
|
static void test_gzencode(td::string s) {
|
|
auto begin_time = td::Time::now();
|
|
auto r = td::gzencode(s, td::max(2, static_cast<int>(100 / s.size())));
|
|
ASSERT_TRUE(!r.empty());
|
|
LOG(INFO) << "Encoded string of size " << s.size() << " in " << (td::Time::now() - begin_time)
|
|
<< " with compression ratio " << r.size() * 1.0 / s.size();
|
|
}
|
|
|
|
TEST(Gzip, gzencode) {
|
|
for (size_t len = 1; len <= 10000000; len *= 10) {
|
|
test_gzencode(td::rand_string('a', 'a', len));
|
|
test_gzencode(td::rand_string('a', 'z', len));
|
|
test_gzencode(td::rand_string(0, 255, len));
|
|
}
|
|
}
|
|
|
|
TEST(Gzip, flow) {
|
|
auto str = td::rand_string('a', 'z', 1000000);
|
|
auto parts = td::rand_split(str);
|
|
|
|
td::ChainBufferWriter input_writer;
|
|
auto input = input_writer.extract_reader();
|
|
td::ByteFlowSource source(&input);
|
|
td::GzipByteFlow gzip_flow(td::Gzip::Mode::Encode);
|
|
gzip_flow = td::GzipByteFlow(td::Gzip::Mode::Encode);
|
|
td::ByteFlowSink sink;
|
|
|
|
source >> gzip_flow >> sink;
|
|
|
|
ASSERT_TRUE(!sink.is_ready());
|
|
for (auto &part : parts) {
|
|
input_writer.append(part);
|
|
source.wakeup();
|
|
}
|
|
ASSERT_TRUE(!sink.is_ready());
|
|
source.close_input(td::Status::OK());
|
|
ASSERT_TRUE(sink.is_ready());
|
|
ASSERT_TRUE(sink.status().is_ok());
|
|
auto res = sink.result()->move_as_buffer_slice().as_slice().str();
|
|
ASSERT_TRUE(!res.empty());
|
|
ASSERT_EQ(td::gzencode(str, 2).as_slice().str(), res);
|
|
}
|
|
TEST(Gzip, flow_error) {
|
|
auto str = td::rand_string('a', 'z', 1000000);
|
|
auto zip = td::gzencode(str, 0.9).as_slice().str();
|
|
ASSERT_TRUE(!zip.empty());
|
|
zip.resize(zip.size() - 1);
|
|
auto parts = td::rand_split(zip);
|
|
|
|
auto input_writer = td::ChainBufferWriter();
|
|
auto input = input_writer.extract_reader();
|
|
td::ByteFlowSource source(&input);
|
|
td::GzipByteFlow gzip_flow(td::Gzip::Mode::Decode);
|
|
td::ByteFlowSink sink;
|
|
|
|
source >> gzip_flow >> sink;
|
|
|
|
ASSERT_TRUE(!sink.is_ready());
|
|
for (auto &part : parts) {
|
|
input_writer.append(part);
|
|
source.wakeup();
|
|
}
|
|
ASSERT_TRUE(!sink.is_ready());
|
|
source.close_input(td::Status::OK());
|
|
ASSERT_TRUE(sink.is_ready());
|
|
ASSERT_TRUE(!sink.status().is_ok());
|
|
}
|
|
|
|
TEST(Gzip, encode_decode_flow) {
|
|
auto str = td::rand_string('a', 'z', 1000000);
|
|
auto parts = td::rand_split(str);
|
|
td::ChainBufferWriter input_writer;
|
|
auto input = input_writer.extract_reader();
|
|
td::ByteFlowSource source(&input);
|
|
td::GzipByteFlow gzip_encode_flow(td::Gzip::Mode::Encode);
|
|
td::GzipByteFlow gzip_decode_flow(td::Gzip::Mode::Decode);
|
|
td::GzipByteFlow gzip_encode_flow2(td::Gzip::Mode::Encode);
|
|
td::GzipByteFlow gzip_decode_flow2(td::Gzip::Mode::Decode);
|
|
td::ByteFlowSink sink;
|
|
source >> gzip_encode_flow >> gzip_decode_flow >> gzip_encode_flow2 >> gzip_decode_flow2 >> sink;
|
|
|
|
ASSERT_TRUE(!sink.is_ready());
|
|
for (auto &part : parts) {
|
|
input_writer.append(part);
|
|
source.wakeup();
|
|
}
|
|
ASSERT_TRUE(!sink.is_ready());
|
|
source.close_input(td::Status::OK());
|
|
ASSERT_TRUE(sink.is_ready());
|
|
LOG_IF(ERROR, sink.status().is_error()) << sink.status();
|
|
ASSERT_TRUE(sink.status().is_ok());
|
|
ASSERT_EQ(str, sink.result()->move_as_buffer_slice().as_slice().str());
|
|
}
|