| must_return_empty_Optional_when_no_new_pair_is_put_1 | 00:00:00.009 | Sun Mar 31 04:51:26 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_2 | 00:00:00.018 | Sun Mar 31 04:51:26 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_3 | 00:00:00.012 | Sun Mar 31 04:51:26 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_1 | 00:00:00.006 | Sun Mar 31 04:51:26 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_2 | 00:00:00.004 | Sun Mar 31 04:51:26 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_3 | 00:00:00.015 | Sun Mar 31 04:51:26 UTC 2019 | PASS |