/*
 * 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 <gtest/gtest.h>

#include "celeborn/client/compress/Lz4Compressor.h"
#include "celeborn/client/compress/Lz4Decompressor.h"

using namespace celeborn;
using namespace celeborn::client;
using namespace celeborn::protocol;

TEST(Lz4CompressorTest, CompressWithLz4) {
  compress::Lz4Compressor compressor;
  const std::string toCompressData = "Helloooooooo Celeborn!!!!!!!!!!";

  const auto maxLength = compressor.getDstCapacity(toCompressData.size());
  std::vector<uint8_t> compressedData(maxLength);
  compressor.compress(
      reinterpret_cast<const uint8_t*>(toCompressData.data()),
      0,
      toCompressData.size(),
      compressedData.data(),
      0);

  compress::Lz4Decompressor decompressor;

  const int originalLen = decompressor.getOriginalLen(compressedData.data());

  std::vector<uint8_t> decompressedData(originalLen + 1);
  decompressedData[originalLen] = '\0';

  const bool success = decompressor.decompress(
      compressedData.data(), decompressedData.data(), 0);

  EXPECT_TRUE(success);
  EXPECT_EQ(reinterpret_cast<char*>(decompressedData.data()), toCompressData);
}

TEST(Lz4CompressorTest, CompressWithRaw) {
  compress::Lz4Compressor compressor;
  const std::string toCompressData = "Hello Celeborn!";

  const auto maxLength = compressor.getDstCapacity(toCompressData.size());
  std::vector<uint8_t> compressedData(maxLength);
  compressor.compress(
      reinterpret_cast<const uint8_t*>(toCompressData.data()),
      0,
      toCompressData.size(),
      compressedData.data(),
      0);

  compress::Lz4Decompressor decompressor;

  const int originalLen = decompressor.getOriginalLen(compressedData.data());

  std::vector<uint8_t> decompressedData(originalLen + 1);
  decompressedData[originalLen] = '\0';

  const bool success = decompressor.decompress(
      compressedData.data(), decompressedData.data(), 0);

  EXPECT_TRUE(success);
  EXPECT_EQ(reinterpret_cast<char*>(decompressedData.data()), toCompressData);
}
