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90 lines (69 loc) · 2.83 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include <cstdint>
#include <memory>
#include <string>
#include <vector>
#include <gtest/gtest.h>
#include "arrow/test-util.h"
#include "arrow/util/compression.h"
using std::string;
using std::vector;
namespace arrow {
template <Compression::type CODEC>
void CheckCodecRoundtrip(const vector<uint8_t>& data) {
// create multiple compressors to try to break them
std::unique_ptr<Codec> c1, c2;
ASSERT_OK(Codec::Create(CODEC, &c1));
ASSERT_OK(Codec::Create(CODEC, &c2));
int max_compressed_len = static_cast<int>(c1->MaxCompressedLen(data.size(), &data[0]));
std::vector<uint8_t> compressed(max_compressed_len);
std::vector<uint8_t> decompressed(data.size());
// compress with c1
int64_t actual_size;
ASSERT_OK(c1->Compress(data.size(), &data[0], max_compressed_len, &compressed[0],
&actual_size));
compressed.resize(actual_size);
// decompress with c2
ASSERT_OK(c2->Decompress(compressed.size(), &compressed[0], decompressed.size(),
&decompressed[0]));
ASSERT_EQ(data, decompressed);
// compress with c2
int64_t actual_size2;
ASSERT_OK(c2->Compress(data.size(), &data[0], max_compressed_len, &compressed[0],
&actual_size2));
ASSERT_EQ(actual_size2, actual_size);
// decompress with c1
ASSERT_OK(c1->Decompress(compressed.size(), &compressed[0], decompressed.size(),
&decompressed[0]));
ASSERT_EQ(data, decompressed);
}
template <Compression::type CODEC>
void CheckCodec() {
int sizes[] = {10000, 100000};
for (int data_size : sizes) {
vector<uint8_t> data(data_size);
test::random_bytes(data_size, 1234, data.data());
CheckCodecRoundtrip<CODEC>(data);
}
}
TEST(TestCompressors, Snappy) { CheckCodec<Compression::SNAPPY>(); }
TEST(TestCompressors, Brotli) { CheckCodec<Compression::BROTLI>(); }
TEST(TestCompressors, GZip) { CheckCodec<Compression::GZIP>(); }
TEST(TestCompressors, ZSTD) { CheckCodec<Compression::ZSTD>(); }
TEST(TestCompressors, Lz4) { CheckCodec<Compression::LZ4>(); }
} // namespace arrow