[metadata manager m8s] Adding unit testcase for ListMetadata Rest API

[josephjacobmorris]

What type of PR is this?

/kind test

What this PR does / why we need it:

• Adding unit test case for paginator, validator, utils

Test Report Added?:

/kind TESTED

Test Report:

• utils.go
  

• paginator.go
  

• validator.go
  

• translator.go
  

• service.go in metadata
  

• service.go in api
  

Special notes for your reviewer:

[josephjacobmorris]

Self Review Done

[codecov]

Codecov Report

Merging #1397 (ddb53ce) into metadata-management (12db78e) will not change coverage.
The diff coverage is n/a.

❗ Current head ddb53ce differs from pull request most recent head 51b9276. Consider uploading reports for the commit 51b9276 to get more accurate results

Additional details and impacted files

@@                 Coverage Diff                  @@
##           metadata-management    #1397   +/-   ##
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  Coverage                48.12%   48.12%           
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  Files                       10       10           
  Lines                     1571     1571           
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  Hits                       756      756           
  Misses                     756      756           
  Partials                    59       59