def test_meta(self):
c = ConfDict()
c.meta_set('bool', 'filter', bool)
c.meta_set('int', 'filter', int)
c['bool'] = 'I am so true!'
c['int'] = '6'
self.assertTrue(c['bool'] is True)
self.assertEquals(c['int'], 6)
self.assertRaises(ValueError, lambda: c.update(int='not an int'))
