infoschema: supply ut to verify special attributes' correctness

[fzzf678]

What problem does this PR solve?

Issue Number: ref #50959

Problem Summary:
No logical change, only test.
Add test to verify the special attributes' correctness after bootstrap and during schema change

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[tiprow]

Hi @fzzf678. Thanks for your PR.

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[fzzf678]

/ok-to-test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.4933%. Comparing base (d37cac5) to head (569418e).
Report is 13 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #55573        +/-   ##
================================================
+ Coverage   72.9759%   75.4933%   +2.5174%     
================================================
  Files          1577       1580         +3     
  Lines        440907     449927      +9020     
================================================
+ Hits         321756     339665     +17909     
+ Misses        99391      90163      -9228     
- Partials      19760      20099       +339     

Flag	Coverage Δ
integration	50.1218% <ø> (?)
unit	72.7087% <ø> (+0.6646%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.9567% <ø> (ø)
parser	∅ <ø> (∅)
br	52.6377% <ø> (+6.6917%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CbcWestwolf, tangenta

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Needs approval from an approver in each of these files:

• pkg/infoschema/OWNERS [tangenta]
• pkg/meta/OWNERS [tangenta]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-08-22 06:26:37.091734029 +0000 UTC m=+419592.226184144: ☑️ agreed by tangenta.
• 2024-08-22 06:47:42.087407833 +0000 UTC m=+420857.221857950: ☑️ agreed by CbcWestwolf.