    @Test
    public void testRemoveOldPersistentTokens() {

        User admin = userRepository.findOneByLogin("admin").get();
        int existingCount = persistentTokenRepository.findByUser(admin).size();
        generateUserToken(admin, "1111-1111", new LocalDate());
        LocalDate now = new LocalDate();
        generateUserToken(admin, "2222-2222", now.minusDays(32));
        assertThat(persistentTokenRepository.findByUser(admin)).hasSize(existingCount + 2);
        userService.removeOldPersistentTokens();
        assertThat(persistentTokenRepository.findByUser(admin)).hasSize(existingCount + 1);
    }