| must_return_empty_Optional_when_no_new_pair_is_put_1 | 00:00:00.002 | Sun Mar 10 04:36:35 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_2 | 00:00:00.010 | Sun Mar 10 04:36:35 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_3 | 00:00:00.005 | Sun Mar 10 04:36:35 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_1 | 00:00:00.010 | Sun Mar 10 04:36:35 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_2 | 00:00:00.014 | Sun Mar 10 04:36:35 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_3 | 00:00:00.007 | Sun Mar 10 04:36:35 UTC 2019 | PASS |