Function GetTestTimezoneDatabaseRoot

cpp/src/arrow/testing/util.cc:126–132

TODO(GH-48593): Remove when libc++ supports std::chrono timezones.

// TODO(GH-48593): Remove when libc++ supports std::chrono timezones.
std::optional<std::string> GetTestTimezoneDatabaseRoot() {
  const char* c_root = std::getenv("ARROW_TIMEZONE_DATABASE");
  if (!c_root) {
    return std::optional<std::string>();
  }
  return std::make_optional(std::string(c_root));
}

// TODO(GH-48593): Remove when libc++ supports std::chrono timezones.
ARROW_SUPPRESS_DEPRECATION_WARNING