anchor.diff:      [{group, tmpdir},
        {group, reset_dir},
        {group, mv},
  +     {group, cp},
        path_from_ancestor,
        canonical_path,
        absolute_path,
  
positive.code:     Path = filename:join(BasePath, atom_to_list(Name) ++ Index),
      ec_file:mkdir_p(Path),
      Path.
  
negative.code:          mv_file_diff/1,
           mv_file_dir_same/1,
           mv_file_dir_diff/1,
           mv_no_clobber/1,
           cp_r_copies_files/1,
           cp_r_dereferences_symbolic_links/1]).
  
  -include_lib("common_test/include/ct.hrl").
  -include_lib("eunit/include/eunit.hrl").
  