Add muxdb test to increase coverage

[MakisChristou]

Description

I had to add new functions in node.go to get the desired coverage. @libotony Please let me know what you think.

Fixes # (issue)

Type of change

Testing

How Has This Been Tested?

make test-coverage

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] New and existing E2E tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules
• [x] I have not added any vulnerable dependencies to my code

[qianbin]

It'll be better to delay this PR, since the maindb-v4 brings a lot of changes to package trie and muxdb.

[nwbrettski]

@qianbin we can mark the trie and muxdb code coverage tasks as blocked until the maindb-v4 is merged into main.

[qianbin]

@qianbin we can mark the trie and muxdb code coverage tasks as blocked until the maindb-v4 is merged into main.

OK, thanks.

[github-actions[bot]]

This pull request has been marked as stale due to inactivity. It will be closed if no further activity occurs. Thank you for your contributions.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 55.52%. Comparing base (dbe9923) to head (9720fd9). Report is 18 commits behind head on master.

Files	Patch %	Lines
trie/node.go	0.00%	15 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #654      +/-   ##
==========================================
+ Coverage   55.09%   55.52%   +0.42%     
==========================================
  Files         179      179              
  Lines       20665    20680      +15     
==========================================
+ Hits        11386    11483      +97     
+ Misses       8442     8353      -89     
- Partials      837      844       +7     

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[otherview]

@nwbrettski @libotony @qianbin

I understand that there will be changes in maindb-v4 that will change this PR. It does seem that this PRs goal (outside adding tests) is to improve code coverage, which it does.

Since the maindb-v4 is still under dev/test we should make a call to either merge this PR or remove it to avoid have stale PR's.

[otherview]

Decision made to close this PR while the work continues on the maindb-v4.