Function MakeLotsOfCsvColumns

cpp/src/arrow/csv/parser_test.cc:827–843

Generate test data with the given number of columns.

// Generate test data with the given number of columns.
std::string MakeLotsOfCsvColumns(int32_t num_columns) {
  std::string values, header;
  header.reserve(num_columns * 10);
  values.reserve(num_columns * 10);
  for (int x = 0; x < num_columns; x++) {
    if (x != 0) {
      header += ",";
      values += ",";
    }
    header += "c" + std::to_string(x);
    values += std::to_string(x);
  }

  header += "\n";
  values += "\n";
  return MakeCSVData({header, values});
}

TEST(BlockParser, LotsOfColumns) {
  auto options = ParseOptions::Defaults();