code: def test_path_isin_positive():
      child = os.path.join("path", "to", "folder")
  
      assert path_isin(child, os.path.join("path", "to", ""))
      assert path_isin(child, os.path.join("path", "to"))
      assert path_isin(child, os.path.join("path", ""))
      assert path_isin(child, os.path.join("path"))
  
imports: import os
  import pytest
  import dvc
  from dvc.fs import system
  from dvc.utils import relpath
  from dvc.utils.fs import BasePathNotInCheckedPathException, contains_symlink_up_to, path_isin, remove
label_desc: Use image node_id 10 for calling a global function with example usage: test_path_isin_positive() without return types