    it "does not remove multiple '../' at the beginning" do
      expect(File.cleanpath('../../A/B')).to eq '../../A/B'
    end
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.