qa: analytics unit tests

[aarnphm]

What does this PR address?

Add some more unit test for metrics.

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• Does the code follow BentoML's code style, both make format and make lint script have passed (instructions)?
• Did you read through contribution guidelines and follow development guidelines?
• Did your changes require updates to the documentation? Have you updated
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• Did you write tests to cover your changes?

[codecov]

Codecov Report

Merging #2878 (2d69438) into main (fdbdc14) will increase coverage by 0.19%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2878      +/-   ##
==========================================
+ Coverage   70.70%   70.89%   +0.19%     
==========================================
  Files         103      103              
  Lines        9302     9319      +17     
==========================================
+ Hits         6577     6607      +30     
+ Misses       2725     2712      -13     

Impacted Files	Coverage Δ
bentoml/_internal/utils/analytics/schemas.py	96.45% <100.00%> (ø)
bentoml/_internal/utils/analytics/usage_stats.py	96.42% <100.00%> (+18.81%)	⬆️
bentoml/_internal/runner/runnable.py	93.75% <0.00%> (+1.56%)	⬆️

[pep8speaks]

Hello @aarnphm, Thanks for updating this PR.

There are currently no PEP 8 issues detected in this PR. Cheers! 🍻

Comment last updated at 2022-08-10 07:44:58 UTC