new test added to check docstring non reproducibility

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (5624bdd) 82.59% compared to head (98c3c30) 82.63%. Report is 14 commits behind head on dev.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #111 +/- ## ========================================== + Coverage 82.59% 82.63% +0.03% ========================================== Files 20 20 Lines 2700 2706 +6 Branches 338 340 +2 ========================================== + Hits 2230 2236 +6 Misses 390 390 Partials 80 80 ``` | [Files](https://app.codecov.io/gh/Quantmetry/qolmat/pull/111?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Quantmetry) | Coverage Δ | | |---|---|---| | [qolmat/imputations/em\_sampler.py](https://app.codecov.io/gh/Quantmetry/qolmat/pull/111?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Quantmetry#diff-cW9sbWF0L2ltcHV0YXRpb25zL2VtX3NhbXBsZXIucHk=) | `87.61% <100.00%> (+0.24%)` | :arrow_up: | | [qolmat/imputations/imputers.py](https://app.codecov.io/gh/Quantmetry/qolmat/pull/111?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Quantmetry#diff-cW9sbWF0L2ltcHV0YXRpb25zL2ltcHV0ZXJzLnB5) | `93.24% <ø> (ø)` | | | [qolmat/imputations/softimpute.py](https://app.codecov.io/gh/Quantmetry/qolmat/pull/111?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Quantmetry#diff-cW9sbWF0L2ltcHV0YXRpb25zL3NvZnRpbXB1dGUucHk=) | `88.88% <ø> (ø)` | |

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.