'Show that a user can fork another user\'s gist.'

def test_fork(self):

    self.basic_login()
    cassette_name = self.cassette_name('fork')
    with self.recorder.use_cassette(cassette_name):
        gist = self.gh.gist('8de9b9b0ae2e45383d85')
        assert (gist is not None)
        forked = gist.fork()
        assert isinstance(forked, github3.gists.Gist)
        assert (str(forked.owner) == 'sigmavirus24')
