test: add test for classpath

[maxday]

Description of changes:

Add test coverage for classpath

Target (OCI, Managed Runtime, both):
both

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.65%. Comparing base (5e072e4) to head (0f2249d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #524      +/-   ##
============================================
+ Coverage     51.39%   53.65%   +2.26%     
- Complexity      188      198      +10     
============================================
  Files            47       47              
  Lines          1150     1150              
  Branches        149      149              
============================================
+ Hits            591      617      +26     
+ Misses          502      474      -28     
- Partials         57       59       +2     

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