Add logging and tests for chdir

[abhaasgoyal]

Resolves #161

Merge Message

• Add DEBUG log message when changing current working directory.
• Add unit test for chdir functionality, where it only changes directory within context.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.72%. Comparing base (ce3608e) to head (5c9c7f6).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #260      +/-   ##
==========================================
+ Coverage   63.50%   63.72%   +0.21%     
==========================================
  Files          35       35              
  Lines        2521     2536      +15     
==========================================
+ Hits         1601     1616      +15     
  Misses        920      920              

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[ccarouge]

Thanks for adding the test.