Add GC accessory UI test case

[YangJiao0817]

Fix #19274

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Comprehensive Summary of your change

Issue being fixed

Fixes #(issue)

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• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed in website repository.

[codecov]

Codecov Report

Merging #19470 (2302395) into main (99b40bf) will decrease coverage by 22.64%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main   #19470       +/-   ##
===========================================
- Coverage   67.46%   44.83%   -22.64%     
===========================================
  Files         988      244      -744     
  Lines      108770    13416    -95354     
  Branches     2752     2752               
===========================================
- Hits        73383     6015    -67368     
+ Misses      31437     7096    -24341     
+ Partials     3950      305     -3645     

Flag	Coverage Δ
unittests	44.83% <ø> (-22.64%)	⬇️

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see 747 files with indirect coverage changes

[wy65701436]

lgtm

[chlins]

lgtm