Fix DebugServerTests never stop issue

[Kyle-Ye]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 5.34%. Comparing base (0ca638c) to head (7a2e89f).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##            main    #162      +/-   ##
========================================
- Coverage   5.66%   5.34%   -0.33%     
========================================
  Files         25      27       +2     
  Lines        635     748     +113     
========================================
+ Hits          36      40       +4     
- Misses       599     708     +109     

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