Add Unit testcases

[zzxwill]

Added uts

Signed-off-by: Zheng Xi Zhou zzxwill@gmail.com

[codecov]

Codecov Report

Merging #264 (0abf57b) into master (97b3f99) will increase coverage by 2.86%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #264      +/-   ##
==========================================
+ Coverage   74.91%   77.77%   +2.86%     
==========================================
  Files          19       19              
  Lines        1188     1188              
==========================================
+ Hits          890      924      +34     
+ Misses        226      193      -33     
+ Partials       72       71       -1     

Flag	Coverage Δ
unit	77.77% <ø> (+2.86%)	⬆️

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Impacted Files	Coverage Δ
controllers/configuration_controller.go	69.52% <0.00%> (+3.98%)	⬆️
controllers/provider_controller.go	87.09% <0.00%> (+25.80%)	⬆️

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