Add UTs for DatabaseShardedMongoTemplate (insert, save)

[shashankrnr32]

Summary

@shashankrnr32

This is a Pull Request that is capable of changing the world.

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Fixes: #{issue_number}

Checklist

Checklist (Developer)

Prerequisites

• I have read the contribution guidelines

Code Analysis

• Covered by Unittests
• All Code analysis checks are passing

Project related

• Project API has modified and is backward incompatible
• I have updated the relevant documentation

Pre-Merge Checklist

• All the build jobs are passing

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Checklist (Reviewer 1 - Language Reviewer)

• Reviewed Source Code
• Reviewed Tests (If applicable)
• Reviewed Documentation (If applicable)

Checklist (Reviewer 2 - Functional Reviewer)

• Reviewed Source Code
• Reviewed Tests (If applicable)
• Reviewed Documentation (If applicable)

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +8.19 🎉

Comparison is base (6972fa0) 52.80% compared to head (8afd213) 61.00%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #37      +/-   ##
============================================
+ Coverage     52.80%   61.00%   +8.19%     
- Complexity      173      197      +24     
============================================
  Files            26       26              
  Lines           659      659              
  Branches         25       25              
============================================
+ Hits            348      402      +54     
+ Misses          309      254      -55     
- Partials          2        3       +1     

see 2 files with indirect coverage changes

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