Method CheckDirectPut

cpp/src/parquet/encoding_test.cc:2476–2500

template <>
void TestDeltaByteArrayEncodingDirectPut<ByteArrayType>::CheckDirectPut(
    std::shared_ptr<::arrow::Array> array) {
  MakeEncoderDecoder(*array->type());

  ASSERT_NO_THROW(encoder->Put(*array));
  auto buf = encoder->FlushValues();

  int num_values = static_cast<int>(array->length() - array->null_count());
  decoder->SetData(num_values, buf->data(), static_cast<int>(buf->size()));

  Accumulator acc;
  ASSERT_OK_AND_ASSIGN(acc.builder, ::arrow::MakeBuilder(array->type()));

  ASSERT_EQ(num_values,
            decoder->DecodeArrow(static_cast<int>(array->length()),
                                 static_cast<int>(array->null_count()),
                                 array->null_bitmap_data(), array->offset(), &acc));

  ASSERT_EQ(acc.chunks.size(), 0) << "Accumulator shouldn't have overflowed chunks";
  ASSERT_OK_AND_ASSIGN(auto result, acc.builder->Finish());
  ASSERT_EQ(array->length(), result->length());
  ASSERT_OK(result->ValidateFull());

  ::arrow::AssertArraysEqual(*array, *result);
}

template <>
void TestDeltaByteArrayEncodingDirectPut<FLBAType>::CheckDirectPut(