Add tests for multiple filters in FilterCommandTest

[tan-zhuoyao]

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[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@c4ba727). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #45   +/-   ##
=========================================
  Coverage          ?   54.32%           
  Complexity        ?      335           
=========================================
  Files             ?       80           
  Lines             ?     1305           
  Branches          ?      123           
=========================================
  Hits              ?      709           
  Misses            ?      552           
  Partials          ?       44           

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