def test_extraLocationsWork(self):
        """
        Passed MIME type files are passed to C{mimetypes.init}.
        """
        paths = ["x", "y", "z"]
        static.loadMimeTypes(paths, init=self._fakeInit)
        self.assertIdentical(self.paths, paths)

        Passed MIME type files are passed to C{mimetypes.init}.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/test/test_static.py