add tests

[clarkliming]

close #68

[github-actions]

🧪 $Test coverage: 100.00%$

Code Coverage Summary

Filename               Stmts    Miss  Cover    Missing
-------------------  -------  ------  -------  ---------
R/assertions.R            54       0  100.00%
R/co_relevels.R           17       0  100.00%
R/cut_by_group.R          15       0  100.00%
R/dm_explicit_na.R        35       0  100.00%
R/dm_unite.R              31       0  100.00%
R/join_adsub_adsl.R       67       0  100.00%
R/pivot.R                 73       0  100.00%
R/propagate.R             22       0  100.00%
R/reformat.R              72       0  100.00%
R/rules.R                 31       0  100.00%
R/utils.R                 27       0  100.00%
TOTAL                    444       0  100.00%

Results for commit: e7afc94

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[github-actions]

Unit Tests Summary

    1 files    11 suites   6s ⏱️
  65 tests   62 ✔️ 3 💤 0 ❌
198 runs  194 ✔️ 4 💤 0 ❌

Results for commit 0e4c19b.

♻️ This comment has been updated with latest results.

[BFalquet]

Looks good to me, thank you for the tests and the improvement of dm_explicit_na. I wonder if this could have an impact on chevron. Please check

[clarkliming]

Looks good to me, thank you for the tests and the improvement of dm_explicit_na. I wonder if this could have an impact on chevron. Please check

It won't affect because that condition is never entered