Enrich filter test case

[tydhot]

What this PR does:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov-commenter]

Codecov Report

Merging #202 (422c26d) into develop (2b4af4d) will increase coverage by 1.09%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #202      +/-   ##
===========================================
+ Coverage    36.45%   37.54%   +1.09%     
===========================================
  Files           36       39       +3     
  Lines         1934     1987      +53     
===========================================
+ Hits           705      746      +41     
- Misses        1134     1143       +9     
- Partials        95       98       +3     

Impacted Files	Coverage Δ
pkg/filter/logger/logger.go	75.00% <0.00%> (ø)
pkg/filter/authority/authority.go	80.95% <0.00%> (ø)
pkg/filter/header/header.go	75.00% <0.00%> (ø)

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[tydhot]

@AlexStocks The imports is spilted now:)