[3.0] 优化 ttl 相关测试

[NHZEX]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.46%. Comparing base (d12d7d4) to head (3d8096b).
⚠️ Report is 38 commits behind head on 3.0.

Additional details and impacted files

@@             Coverage Diff              @@
##                3.0     #638      +/-   ##
============================================
+ Coverage     63.00%   66.46%   +3.45%     
  Complexity    10913    10913              
============================================
  Files           868      868              
  Lines         29598    29603       +5     
============================================
+ Hits          18649    19675    +1026     
+ Misses        10949     9928    -1021     

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