Function checkDictionaryEncoding

c++/test/TestDictionaryEncoding.cc:50–73

  }

  static void checkDictionaryEncoding(StringVectorBatch* batch) {
    EXPECT_TRUE(batch->isEncoded);

    const auto* encoded_batch = dynamic_cast<EncodedStringVectorBatch*>(batch);
    EXPECT_TRUE(encoded_batch != nullptr);

    const auto& dictionary = encoded_batch->dictionary;
    EXPECT_TRUE(dictionary != nullptr);

    // Check if the dictionary is sorted
    std::string prev;
    for (size_t i = 0; i < dictionary->dictionaryOffset.size() - 1; ++i) {
      char* begin = nullptr;
      int64_t length = 0;
      dictionary->getValueByIndex(i, begin, length);

      std::string curr = std::string(begin, static_cast<size_t>(length));
      if (i) {
        EXPECT_GT(curr, prev);
      }

      prev = std::move(curr);
    }
  }

  static std::unique_ptr<RowReader> createRowReader(Reader* reader,
                                                    bool enableEncodedBlock = false) {