Function get_data_dir

cpp/src/parquet/test_util.cc:37–45

namespace test {

const char* get_data_dir() {
  const auto result = std::getenv("PARQUET_TEST_DATA");
  if (!result || !result[0]) {
    throw ParquetTestException(
        "Please point the PARQUET_TEST_DATA environment "
        "variable to the test data directory");
  }
  return result;
}

std::string get_bad_data_dir() {
  // PARQUET_TEST_DATA should point to ARROW_HOME/cpp/submodules/parquet-testing/data