def METHOD_NAME(self):
    input_words = [" this is unicode Юникод"]
    correct_words = ["this is unicode юникод"]
    users_state = self._post_words(input_words)
    assert ''.join({content['status'] for (_, content) in users_state.items()}) == 'success'
    for user in self.users:
        self.assertListEqual(
            list(users_state[user.username]['student_words'].keys()),
            correct_words)