Increase bandwidth coverage

[MakisChristou]

Increases bandwith.go coverage to 84%. Relevant issue.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 62.55%. Comparing base (e61c650) to head (02a187f). Report is 37 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #727      +/-   ##
==========================================
+ Coverage   61.35%   62.55%   +1.20%     
==========================================
  Files         194      199       +5     
  Lines       18221    18140      -81     
==========================================
+ Hits        11179    11348     +169     
+ Misses       5960     5708     -252     
- Partials     1082     1084       +2     

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