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initial commit 2019-09-07 14:03:22 +04:00 • committed by vvaltman
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tdutils/test/gzip.cpp Normal file
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/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#include "td/utils/buffer.h"
#include "td/utils/ByteFlow.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"
static void encode_decode(td::string s) {
auto r = td::gzencode(s, 2);
ASSERT_TRUE(!r.empty());
if (r.empty()) {
return;
}
auto new_s = td::gzdecode(r.as_slice());
ASSERT_TRUE(!new_s.empty());
if (new_s.empty()) {
return;
}
ASSERT_EQ(s, new_s.as_slice().str());
}
TEST(Gzip, gzencode_gzdecode) {
auto str = td::rand_string(0, 127, 1000);
encode_decode(str);
str = td::rand_string('a', 'z', 1000000);
encode_decode(str);
str = td::string(1000000, 'a');
encode_decode(str);
}
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::Encode);
gzip_flow = td::GzipByteFlow(td::Gzip::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).as_slice().str();
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::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::Encode);
td::GzipByteFlow gzip_decode_flow(td::Gzip::Decode);
td::GzipByteFlow gzip_encode_flow2(td::Gzip::Encode);
td::GzipByteFlow gzip_decode_flow2(td::Gzip::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());
}