Method MakeExample

cpp/src/arrow/io/buffered_test.cc:761–776

  }

  void MakeExample(int64_t buffer_size,
                   std::optional<int64_t> read_bound = std::nullopt) {
    test_data_ = kExample1;
    MemoryPool* pool = default_memory_pool();

    ASSERT_OK_AND_ASSIGN(auto file_out, FileOutputStream::Open(path_));
    ASSERT_OK(file_out->Write(test_data_));
    ASSERT_OK(file_out->Close());

    ASSERT_OK_AND_ASSIGN(auto file_in, ReadableFile::Open(path_));
    raw_ = file_in;
    tracked_ = TrackedRandomAccessFile::Make(dynamic_cast<RandomAccessFile*>(raw_.get()));
    ASSERT_OK_AND_ASSIGN(buffered_,
                         BufferedInputStream::Create(buffer_size, pool, tracked_,
                                                     read_bound.value_or(-1)));
  }

 protected:
  std::shared_ptr<TrackedRandomAccessFile> tracked_;