test: add unit tests

[jikkai]

close #xxx

Pull Request Checklist

• Related tickets or issues have been linked in the PR description (or missing issue).
• Naming convention is followed (do please check it especially when you created new plugins, commands and resources).
• Unit tests have been added for the changes (if applicable).
• Breaking changes have been documented (or no breaking changes introduced in this PR).

[github-actions]

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[github-actions]

Playwright test results

 27 passed

Details

 27 tests across 12 suites
 6 minutes, 60 seconds
 c8f95ad
 For more information, see full report

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.07%. Comparing base (0fda544) to head (9b8e24b).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #6769      +/-   ##
==========================================
+ Coverage   60.22%   61.07%   +0.84%     
==========================================
  Files        2566     2566              
  Lines      146562   146566       +4     
  Branches    32929    32929              
==========================================
+ Hits        88274    89511    +1237     
+ Misses      58288    57055    -1233     

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