def test_ddict_attribute(self):
d = ddict.ddict({'a':1})
self.assertEqual(d['a'], 1)
self.assertEqual(d.a, 1)
self.assertRaises(KeyError, lambda: d['b'])
self.assertRaises(KeyError, lambda: d.b)
def assign():
d.b = 4
self.assertRaises(KeyError, assign)
self.assertRaises(KeyError, lambda: d.b)
d['b'] = 3
self.assertEqual(d['b'], 3)
self.assertEqual(d.b, 3)
d.b = 4
self.assertEqual(d['b'], 4)
self.assertEqual(d.b, 4)
def test_ddict_empty(self):
d = ddict.ddict()
self.assertEqual(not d, True)
d = ddict.ddict({})
self.assertEqual(not d, True)