[P2P] Module-level background router peer discovery coverage

[bryanchriswhite]

Description

Adding module-level test coverage over the kademlia-backed peer discovery mechanism which the background router encapsulates.

Issue

Addresses most (if not all) deliverables in #712

Type of change

Please mark the relevant option(s):

• New feature, functionality or library
• Bug fix
• Code health or cleanup
• Major breaking change
• Documentation
• Other

List of changes

• ...

Testing

• make develop_test; if any code changes were made
• make test_e2e on k8s LocalNet; if any code changes were made
• e2e-devnet-test passes tests on DevNet; if any code was changed
• Docker Compose LocalNet; if any major functionality was changed or introduced
• k8s LocalNet; if any infrastructure or configuration changes were made

Required Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added, or updated, godoc format comments on touched members (see: tip.golang.org/doc/comment)
• I have tested my changes using the available tooling
• I have updated the corresponding CHANGELOG

If Applicable Checklist

• I have updated the corresponding README(s); local and/or global
• I have added tests that prove my fix is effective or that my feature works
• I have added, or updated, mermaid.js diagrams in the corresponding README(s)
• I have added, or updated, documentation and mermaid.js diagrams in shared/docs/* if I updated shared/*README(s)

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (a8206ec) 29.79% compared to head (a00b9d1) 29.79%.

Additional details and impacted files

@@                    Coverage Diff                    @@
##           feat/integrate-bg-router     #793   +/-   ##
=========================================================
  Coverage                     29.79%   29.79%           
=========================================================
  Files                           108      108           
  Lines                          8867     8867           
=========================================================
  Hits                           2642     2642           
  Misses                         5915     5915           
  Partials                        310      310           

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