TEST: add verify path exists for upload tests

[dipinknair]

Parameterized tests currently do not have option to verify the files currently.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.48%. Comparing base (cf30cd8) to head (263b7e8).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1076      +/-   ##
==========================================
+ Coverage   86.44%   86.48%   +0.03%     
==========================================
  Files          39       39              
  Lines        2537     2537              
==========================================
+ Hits         2193     2194       +1     
+ Misses        344      343       -1     

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[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.04% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (cf30cd8)	2537	2193	86.44%
Head commit (263b7e8)	2537 (+0)	2194 (+1)	86.48% (+0.04%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1076)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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