Add e2e for remedy

[XiShanYongYe-Chang]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Add e2e for the remedy feature.

Which issue(s) this PR fixes:
Part of #4658

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[XiShanYongYe-Chang]

Hi @Vacant2333, can you help take a look?
cc @Vacant2333

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.30%. Comparing base (a8c6723) to head (87a1938).

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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5007   +/-   ##
=======================================
  Coverage   53.30%   53.30%           
=======================================
  Files         253      253           
  Lines       20560    20560           
=======================================
  Hits        10960    10960           
  Misses       8875     8875           
  Partials      725      725           

Flag	Coverage Δ
unittests	53.30% <ø> (ø)

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[Vacant2333]

/assign

[Vacant2333]

hi
/lgtm

[XiShanYongYe-Chang]

cc @RainbowMango

[RainbowMango]

/approve

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango, Vacant2333

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