w: fix two clippy warnings in tests

[cakebaker]

This PR fixes two clippy warnings in tests.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 49.88%. Comparing base (9391cf1) to head (79af714).
Report is 12 commits behind head on main.

Files	Patch %	Lines
tests/by-util/test_w.rs	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            main      #63       +/-   ##
==========================================
+ Coverage   0.10%   49.88%   +49.77%     
==========================================
  Files         18       18               
  Lines       1841     2171      +330     
  Branches     239      307       +68     
==========================================
+ Hits           2     1083     +1081     
+ Misses      1839     1049      -790     
- Partials       0       39       +39     

Flag	Coverage Δ
macos_latest	48.65% <ø> (?)
ubuntu_latest	43.73% <0.00%> (?)
windows_latest	?

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