Tests

[senwu]

Description of the problems or issues

More python version support and format update.

Test plan

Pass all existing tests.

Checklist

• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.
• [ ] I have updated the CHANGELOG.rst accordingly.

[codecov[bot]]

Codecov Report

Merging #111 (3a866ed) into master (2618b1a) will increase coverage by 0.22%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #111      +/-   ##
==========================================
+ Coverage   90.22%   90.45%   +0.22%     
==========================================
  Files          41       40       -1     
  Lines        2005     2000       -5     
  Branches      425      424       -1     
==========================================
  Hits         1809     1809              
+ Misses        117      112       -5     
  Partials       79       79              

Flag	Coverage Δ
unittests	90.45% <ø> (+0.22%)	:arrow_up:

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