NETOBSERV-1498 add testing to table displays

[jpinsonneau]

Description

Add testing to table displays

• Flows
• Packets

Dependencies

n/a

Checklist

If you are not familiar with our processes or don't know what to answer in the list below, let us know in a comment: the maintainers will take care of that.

• Is this PR backed with a JIRA ticket? If so, make sure it is written as a title prefix (in general, PRs affecting the NetObserv/Network Observability product should be backed with a JIRA ticket - especially if they bring user facing changes).
• Does this PR require product documentation?
  • If so, make sure the JIRA epic is labelled with "documentation" and provides a description relevant for doc writers, such as use cases or scenarios. Any required step to activate or configure the feature should be documented there, such as new CRD knobs.
• Does this PR require a product release notes entry?
  • If so, fill in "Release Note Text" in the JIRA.
• Is there anything else the QE team should know before testing? E.g: configuration changes, environment setup, etc.
  • If so, make sure it is described in the JIRA ticket.
• QE requirements (check 1 from the list):
  • Standard QE validation, with pre-merge tests unless stated otherwise.
  • Regression tests only (e.g. refactoring with no user-facing change).
  • No QE (e.g. trivial change with high reviewer's confidence, or per agreement with the QE team).

[codecov]

Codecov Report

Attention: Patch coverage is 55.55556% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 31.25%. Comparing base (f58b119) to head (8a7ca5f).
Report is 13 commits behind head on main.

Files	Patch %	Lines
cmd/flow_capture.go	31.57%	11 Missing and 2 partials ⚠️
cmd/packet_capture.go	71.42%	3 Missing and 1 partial ⚠️
cmd/root.go	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            main      #24       +/-   ##
==========================================
+ Coverage   0.00%   31.25%   +31.25%     
==========================================
  Files          5        5               
  Lines        898      944       +46     
==========================================
+ Hits           0      295      +295     
+ Misses       898      629      -269     
- Partials       0       20       +20     

Flag	Coverage Δ
unittests	31.25% <55.55%> (+31.25%)	⬆️

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[msherif1234]

/lgtm

[openshift-ci]

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