sc_map: add test

[codecov[bot]]

Codecov Report

Merging #118 (ff75882) into master (5f921ba) will increase coverage by 0.18%. The diff coverage is n/a.

Additional details and impacted files

[](https://codecov.io/gh/tezc/sc/pull/118?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ozan+Tezcan) ```diff @@ Coverage Diff @@ ## master #118 +/- ## ========================================== + Coverage 99.45% 99.63% +0.18% ========================================== Files 21 21 Lines 2183 2183 Branches 386 386 ========================================== + Hits 2171 2175 +4 Misses 3 3 + Partials 9 5 -4 ``` [see 1 file with indirect coverage changes](https://codecov.io/gh/tezc/sc/pull/118/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ozan+Tezcan) ------ [Continue to review full report in Codecov by Sentry](https://codecov.io/gh/tezc/sc/pull/118?src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ozan+Tezcan). > **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ozan+Tezcan) > `Δ = absolute (impact)`, `ø = not affected`, `? = missing data` > Powered by [Codecov](https://codecov.io/gh/tezc/sc/pull/118?src=pr&el=footer&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ozan+Tezcan). Last update [5f921ba...ff75882](https://codecov.io/gh/tezc/sc/pull/118?src=pr&el=lastupdated&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ozan+Tezcan). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ozan+Tezcan).