Method TestMinMaxEncode

cpp/src/parquet/statistics_test.cc:556–583

template <>
void TestStatistics<ByteArrayType>::TestMinMaxEncode() {
  this->GenerateData(1000);
  // Test that we encode min max strings correctly
  auto statistics1 = MakeStatistics<ByteArrayType>(this->schema_.Column(0));
  statistics1->Update(this->values_ptr_, this->values_.size(), 0);
  std::string encoded_min = statistics1->EncodeMin();
  std::string encoded_max = statistics1->EncodeMax();

  // encoded is same as unencoded
  ASSERT_EQ(encoded_min,
            std::string(reinterpret_cast<const char*>(statistics1->min().ptr),
                        statistics1->min().len));
  ASSERT_EQ(encoded_max,
            std::string(reinterpret_cast<const char*>(statistics1->max().ptr),
                        statistics1->max().len));

  auto statistics2 = MakeStatistics<ByteArrayType>(
      this->schema_.Column(0), encoded_min, encoded_max, this->values_.size(),
      /*null_count=*/0,
      /*distinct_count=*/0, /*has_min_max=*/true, /*has_null_count=*/true,
      /*has_distinct_count=*/true, /*is_min_value_exact=*/true,
      /*is_max_value_exact=*/true);

  ASSERT_EQ(encoded_min, statistics2->EncodeMin());
  ASSERT_EQ(encoded_max, statistics2->EncodeMax());
  ASSERT_EQ(statistics1->min(), statistics2->min());
  ASSERT_EQ(statistics1->max(), statistics2->max());
}

using Types = ::testing::Types<Int32Type, Int64Type, FloatType, DoubleType, ByteArrayType,
                               FLBAType, BooleanType>;