assertNull(user.getDescription());

        user.setDescription("Test user description");
        assertEquals("Test user description", user.getDescription());
    }

    @Test
    public void test_user_displayName() {
        final User user = new User();
        assertNull(user.getDisplayName());

        user.setDisplayName("John Doe");
        assertEquals("John Doe", user.getDisplayName());
    }