fix: improve lock handling and output in tests and main function

[creativeprojects]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.76%. Comparing base (395db19) to head (fea25f2).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #621   +/-   ##
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  Coverage   80.76%   80.76%           
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  Files         164      164           
  Lines       12116    12116           
=======================================
  Hits         9785     9785           
  Misses       1836     1836           
  Partials      495      495           

Flag	Coverage Δ
unittests	79.04% <ø> (ø)

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[Copilot]

Pull request overview

This PR refactors the lock helper test binary to return explicit exit codes and emit a consistent startup line, and adjusts lock-related tests to align with the new output and improve signal-handling robustness.

Changes:

• Refactor lock/test/main.go to move execution into run() (returning an exit code) and print started on launch.
• Update lock/lock_test.go expected outputs and timing for the helper binary runs, and add signal-exit detection logic.
• Improve shell invocation quoting for paths with spaces in the interrupt-in-shell test.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
lock/test/main.go	Extracts logic into run() and adds consistent startup output + exit code handling.
lock/lock_test.go	Updates helper build/run behavior, expected output strings, and interrupt-related tests.

Comments suppressed due to low confidence (1)

lock/lock_test.go:346

• Same issue here: skipping based on buffer.Len() == 0 can mask actual failures/flakiness. Prefer a deterministic sync mechanism (wait for the helper's "started" output via a pipe/reader) and use a purely technical skip message if a skip is still required.

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