[ISSUE #8392] add tests for QueryMessageProcessor

[TanXiang7o]

fix #8392
before:

after:

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 44.37%. Comparing base (259efdb) to head (d711a58).
Report is 162 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #8393      +/-   ##
=============================================
+ Coverage      44.34%   44.37%   +0.03%     
  Complexity     10777    10777              
=============================================
  Files           1274     1274              
  Lines          88951    88951              
  Branches       11434    11434              
=============================================
+ Hits           39447    39476      +29     
+ Misses         44540    44507      -33     
- Partials        4964     4968       +4     

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[ShannonDing]

link #8262