| must_return_empty_Optional_when_no_new_pair_is_put_1 | 00:00:00.005 | Sat Mar 16 04:44:20 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_2 | 00:00:00.014 | Sat Mar 16 04:44:20 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_3 | 00:00:00.005 | Sat Mar 16 04:44:20 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_1 | 00:00:00.018 | Sat Mar 16 04:44:20 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_2 | 00:00:00.018 | Sat Mar 16 04:44:20 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_3 | 00:00:00.003 | Sat Mar 16 04:44:20 UTC 2019 | PASS |