add image to test_upload contents

[elewis2]

Adds an image to report contents used in test_upload tests.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.07%. Comparing base (e6e48c5) to head (964b6f7).
Report is 8 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #48      +/-   ##
===========================================
- Coverage    86.26%   86.07%   -0.20%     
===========================================
  Files           18       18              
  Lines         2388     2398      +10     
===========================================
+ Hits          2060     2064       +4     
- Misses         328      334       +6     

Flag	Coverage Δ
unittests	86.07% <ø> (-0.20%)	⬇️

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