Test for none type in command function

[mkmer]

Description:

Add test for None type when aiohttp returns None type addressing

Related issue (if applicable): fixes #891

Checklist:

• Local tests with tox run successfully PR cannot be meged unless tests pass
• Changes tested locally to ensure platform still works as intended
• Tests added to verify new code works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.79%. Comparing base (0ec0346) to head (d704a01).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #892   +/-   ##
=======================================
  Coverage   99.79%   99.79%           
=======================================
  Files           8        8           
  Lines        1486     1487    +1     
=======================================
+ Hits         1483     1484    +1     
  Misses          3        3           

Flag	Coverage Δ
unittests	99.79% <100.00%> (+<0.01%)	⬆️

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