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[B1F030]

What type of PR is this?
/kind cleanup

What this PR does / why we need it:

Which issue(s) this PR fixes:
Part of #5048

Special notes for your reviewer:
See the preview here.

Does this PR introduce a user-facing change?:

NONE

[B1F030]

cc @zhzhuang-zju @RainbowMango

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.22%. Comparing base (bbf37c1) to head (a989131).

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5051      +/-   ##
==========================================
- Coverage   28.22%   28.22%   -0.01%     
==========================================
  Files         632      632              
  Lines       43434    43434              
==========================================
- Hits        12261    12258       -3     
- Misses      30278    30280       +2     
- Partials      895      896       +1     

Flag	Coverage Δ
unittests	28.22% <ø> (-0.01%)	⬇️

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[RainbowMango]

/approve
Leave LGTM to @zhzhuang-zju for another look.

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

The full list of commands accepted by this bot can be found here.

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• OWNERS [RainbowMango]

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[zhzhuang-zju]

/lgtm thanks.

[RainbowMango]

/lgtm
The command should be in a separate line. @zhzhuang-zju