| 161 | self.assertEqual(list(Record(None, (42, 43)).keys()), []) |
| 162 | |
| 163 | def test_record_items(self): |
| 164 | r = Record(R_AB, (42, 43)) |
| 165 | |
| 166 | self.assertEqual(dict(r), {'a': 42, 'b': 43}) |
| 167 | self.assertEqual( |
| 168 | list(collections.OrderedDict(r).items()), |
| 169 | [('a', 42), ('b', 43)]) |
| 170 | |
| 171 | with self.checkref(r): |
| 172 | rk = r.items() |
| 173 | self.assertEqual(rk.__length_hint__(), 2) |
| 174 | self.assertEqual(next(rk), ('a', 42)) |
| 175 | self.assertEqual(rk.__length_hint__(), 1) |
| 176 | self.assertEqual(next(rk), ('b', 43)) |
| 177 | self.assertEqual(rk.__length_hint__(), 0) |
| 178 | |
| 179 | with self.assertRaises(StopIteration): |
| 180 | next(rk) |
| 181 | with self.assertRaises(StopIteration): |
| 182 | next(rk) |
| 183 | |
| 184 | self.assertEqual(rk.__length_hint__(), 0) |
| 185 | |
| 186 | self.assertEqual(list(r.items()), [('a', 42), ('b', 43)]) |
| 187 | |
| 188 | # Check invalid records just in case |
| 189 | r = Record(R_A, (42, 43)) |
| 190 | self.assertEqual(list(r.items()), [('a', 42)]) |
| 191 | r = Record(R_AB, (42,)) |
| 192 | self.assertEqual(list(r.items()), [('a', 42)]) |
| 193 | |
| 194 | # Try to iterate over exhausted items() iterator |
| 195 | r = Record(R_A, (42, 43)) |
| 196 | it = r.items() |
| 197 | list(it) |
| 198 | list(it) |
| 199 | |
| 200 | def test_record_hash(self): |
| 201 | AB = collections.namedtuple('AB', ('a', 'b')) |