//   Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed 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 "paddle/fluid/recordio/chunk.h"

#include <sstream>

#include "gtest/gtest.h"

using namespace paddle::recordio;

TEST(Chunk, SaveLoad) {
  Chunk ch;
  ch.Add("12345", 6);
  ch.Add("123", 4);
  {
    Stream* fs = Stream::Open("/tmp/record_11", "w");
    ch.Dump(fs, Compressor::kNoCompress);
    EXPECT_EQ(ch.NumBytes(), 0);
  }
  {
    Stream* fs = Stream::Open("/tmp/record_11", "r");
    ch.Parse(fs, 0);
    EXPECT_EQ(ch.NumBytes(), 10);
  }
}

TEST(Chunk, Compressor) {
  Chunk ch;
  ch.Add("12345", 6);
  ch.Add("123", 4);
  ch.Add("123", 4);
  ch.Add("123", 4);
  {
    Stream* fs = Stream::Open("/tmp/record_12", "w");
    ch.Dump(fs, Compressor::kSnappy);
    EXPECT_EQ(ch.NumBytes(), 0);
  }
  {
    Stream* fs = Stream::Open("/tmp/record_12", "r");
    ch.Parse(fs, 0);
    EXPECT_EQ(ch.NumBytes(), 10);
  }
}