| must_return_empty_Optional_when_no_new_pair_is_put_1 | 00:00:00.009 | Mon Feb 11 04:34:35 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_2 | 00:00:00.013 | Mon Feb 11 04:34:35 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_3 | 00:00:00.003 | Mon Feb 11 04:34:35 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_1 | 00:00:00.016 | Mon Feb 11 04:34:35 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_2 | 00:00:00.002 | Mon Feb 11 04:34:35 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_3 | 00:00:00.005 | Mon Feb 11 04:34:35 UTC 2019 | PASS |