Method TestExtendCurrent

cpp/src/arrow/array/array_binary_test.cc:583–609

  }

  void TestExtendCurrent() {
    std::vector<std::string> strings = {"", "bbbb", "aaaaa", "", "ccc"};
    std::vector<uint8_t> is_valid = {1, 1, 1, 0, 1};

    int N = static_cast<int>(strings.size());
    int reps = 10;

    for (int j = 0; j < reps; ++j) {
      for (int i = 0; i < N; ++i) {
        if (!is_valid[i]) {
          ASSERT_OK(builder_->AppendNull());
        } else if (strings[i].length() > 3) {
          ASSERT_OK(builder_->Append(strings[i].substr(0, 3)));
          ASSERT_OK(builder_->ExtendCurrent(strings[i].substr(3)));
        } else {
          ASSERT_OK(builder_->Append(strings[i]));
        }
      }
    }
    Done();

    ASSERT_EQ(reps * N, result_->length());
    ASSERT_EQ(reps, result_->null_count());
    ASSERT_EQ(reps * 12, result_->value_data()->size());

    CheckStringArray(*result_, strings, is_valid, reps);
  }

  void TestExtendCurrentUnsafe() {
    std::vector<std::string> strings = {"", "bbbb", "aaaaa", "", "ccc"};