add additional tests

[clarkliming]

close #33

[github-actions]

Unit Tests Summary

 1 files   5 suites   0s ⏱️
16 tests 10 ✅ 6 💤 0 ❌
44 runs  37 ✅ 7 💤 0 ❌

Results for commit f598012.

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Performance Difference

Additional test case details

Test Suite	$Status$	Time on main	$±Time$	Test Case
predict_counterfactual	👶		$+0.04$	predict_counterfactual_works_if_contrast_are_non_standard

Results for commit 63305a0

♻️ This comment has been updated with latest results.

[github-actions]

Code Coverage Summary

Filename                     Stmts    Miss  Cover    Missing
-------------------------  -------  ------  -------  --------------------
R/bias.R                        11       0  100.00%
R/predict_couterfactual.R       46       0  100.00%
R/prediction_cf.R                3       0  100.00%
R/treatment_effect.R            72      11  84.72%   31, 37, 43, 61-77
R/utils.R                       21       1  95.24%   16
R/variance_anhecova.R           45      19  57.78%   30, 45-46, 59, 65-80
R/variance_hc.R                  9       0  100.00%
TOTAL                          207      31  85.02%

Diff against main

Filename      Stmts    Miss  Cover
----------  -------  ------  --------
TOTAL             0       0  +100.00%

Results for commit: f598012

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results