def test_verifyHashedEntry(self):
        """
        Loading a L{KnownHostsFile} from a path containing a single valid
        L{HashedEntry} entry will result in a L{KnownHostsFile} object
        with one L{IKnownHostEntry} provider.
        """
        hostsFile = self.loadSampleHostsFile((sampleHashedLine))
        entries = list(hostsFile.iterentries())
        self.assertIsInstance(entries[0], HashedEntry)
        self.assertTrue(entries[0].matchesHost(b"www.twistedmatrix.com"))
        self.assertEqual(1, len(entries))

        Loading a L{KnownHostsFile} from a path containing a single valid
        L{HashedEntry} entry will result in a L{KnownHostsFile} object
        with one L{IKnownHostEntry} provider.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/test/test_knownhosts.py