Function MakeForest

cpp/src/arrow/dataset/subtree_test.cc:119–125

}

Forest MakeForest(std::vector<FileInfo>* infos) {
  std::sort(infos->begin(), infos->end(), FileInfo::ByPath);

  return Forest(static_cast<int>(infos->size()), [&](int i, int j) {
    return IsAncestorOf(infos->at(i).path, infos->at(j).path);
  });
}

void ExpectForestIs(std::vector<FileInfo> infos, std::vector<PT> expected_roots) {
  auto forest = MakeForest(&infos);