| must_return_empty_Optional_when_no_new_pair_is_put_1 | 00:00:00.001 | Sun Feb 10 04:40:22 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_2 | 00:00:00.011 | Sun Feb 10 04:40:22 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_3 | 00:00:00.005 | Sun Feb 10 04:40:22 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_1 | 00:00:00.002 | Sun Feb 10 04:40:22 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_2 | 00:00:00.006 | Sun Feb 10 04:40:22 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_3 | 00:00:00.003 | Sun Feb 10 04:40:22 UTC 2019 | PASS |