code: def test_find_root_directory_no_revision_with_incomplete_cache(self):
      self.api.upload_file(
          path_or_fileobj=b"dummy text data 2",
          path_in_repo="data/sub_data/text_data2.txt",
          repo_id=self.repo_id,
          repo_type="dataset",
      )
  
      self.api.upload_file(
          path_or_fileobj=b"dummy binary data 2",
          path_in_repo="data1/binary_data2.bin",
          repo_id=self.repo_id,
          repo_type="dataset",
      )
  
      files = self.hffs.find(self.hf_path, detail=True)
  
      # some directories not in cache
      self.hffs.dircache.pop(self.hf_path + "/data/sub_data")
      # some files not expanded
      self.hffs.dircache[self.hf_path + "/data"][1][
          "last_commit"
      ] = None
      out = self.hffs.find(self.hf_path, detail=True)
      self.assertEqual(out, files)
  
imports: import datetime
  import unittest
  from typing import Optional
  from unittest.mock import patch
  import fsspec
  import pytest
  from huggingface_hub.hf_file_system import HfFileSystem
  from huggingface_hub.utils import RepositoryNotFoundError, RevisionNotFoundError
  from .testing_constants import ENDPOINT_STAGING, TOKEN
  from .testing_utils import repo_name
label_desc: Use image node_id 23 for calling the HfFileSystemTests obj's underlying member method code with example usage: obj.test_find_root_directory_no_revision_with_incomplete_cache() without return types