Reduced tolerance in some tests to pass on all operating systems

[codecov[bot]]

Codecov Report

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

Project coverage is 93.56%. Comparing base (589e548) to head (c5c834a). Report is 4 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #19 +/- ## ======================================= Coverage 93.56% 93.56% ======================================= Files 13 13 Lines 497 497 ======================================= Hits 465 465 Misses 32 32 ```

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