(self)
| 500 | self.assertRaises(Exc, d.setdefault, x, []) |
| 501 | |
| 502 | def test_setdefault_atomic(self): |
| 503 | # Issue #13521: setdefault() calls __hash__ and __eq__ only once. |
| 504 | class Hashed(object): |
| 505 | def __init__(self): |
| 506 | self.hash_count = 0 |
| 507 | self.eq_count = 0 |
| 508 | def __hash__(self): |
| 509 | self.hash_count += 1 |
| 510 | return 42 |
| 511 | def __eq__(self, other): |
| 512 | self.eq_count += 1 |
| 513 | return id(self) == id(other) |
| 514 | hashed1 = Hashed() |
| 515 | y = {hashed1: 5} |
| 516 | hashed2 = Hashed() |
| 517 | y.setdefault(hashed2, []) |
| 518 | self.assertEqual(hashed1.hash_count, 1) |
| 519 | self.assertEqual(hashed2.hash_count, 1) |
| 520 | self.assertEqual(hashed1.eq_count + hashed2.eq_count, 1) |
| 521 | |
| 522 | def test_setitem_atomic_at_resize(self): |
| 523 | class Hashed(object): |
nothing calls this directly
no test coverage detected