| // 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 <gtest/gtest.h> |
| #include <string> |
| #include <vector> |
| |
| #include "parquet/compression.h" |
| #include "parquet/util/test-common.h" |
| |
| using std::string; |
| using std::vector; |
| |
| namespace parquet { |
| |
| template <typename T> |
| void CheckCodecRoundtrip(const vector<uint8_t>& data) { |
| // create multiple compressors to try to break them |
| T c1; |
| T c2; |
| |
| int max_compressed_len = c1.MaxCompressedLen(data.size(), &data[0]); |
| std::vector<uint8_t> compressed(max_compressed_len); |
| std::vector<uint8_t> decompressed(data.size()); |
| |
| // compress with c1 |
| int actual_size = |
| c1.Compress(data.size(), &data[0], max_compressed_len, &compressed[0]); |
| compressed.resize(actual_size); |
| |
| // decompress with c2 |
| c2.Decompress(compressed.size(), &compressed[0], decompressed.size(), &decompressed[0]); |
| |
| ASSERT_TRUE(test::vector_equal(data, decompressed)); |
| |
| // compress with c2 |
| int actual_size2 = |
| c2.Compress(data.size(), &data[0], max_compressed_len, &compressed[0]); |
| ASSERT_EQ(actual_size2, actual_size); |
| |
| // decompress with c1 |
| c1.Decompress(compressed.size(), &compressed[0], decompressed.size(), &decompressed[0]); |
| |
| ASSERT_TRUE(test::vector_equal(data, decompressed)); |
| } |
| |
| template <typename T> |
| void CheckCodec() { |
| int sizes[] = {10000, 100000}; |
| for (int data_size : sizes) { |
| vector<uint8_t> data; |
| test::random_bytes(data_size, 1234, &data); |
| CheckCodecRoundtrip<T>(data); |
| } |
| } |
| |
| TEST(TestCompressors, Snappy) { |
| CheckCodec<SnappyCodec>(); |
| } |
| |
| TEST(TestCompressors, Brotli) { |
| CheckCodec<BrotliCodec>(); |
| } |
| |
| TEST(TestCompressors, GZip) { |
| CheckCodec<GZipCodec>(); |
| } |
| |
| } // namespace parquet |