[bvolpato]

The remote-inference retry tests use a real stochastic throttler. Repeated fake failures can keep the test waiting until pytest times out, as seen in macOS Python 3.14 CI.

Mock throttling and backoff waits in the retry tests, while checking both retry exhaustion and successful recovery. Check the expected request error rather than accepting any pipeline exception.

Reproduced the hang with a forced throttle decision. The focused remote-inference and adaptive-throttler tests pass, along with Ruff and YAPF.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.90%. Comparing base (a8d6afd) to head (6a12d89).
⚠️ Report is 75 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #40776      +/-   ##
==========================================
- Coverage   80.04%   79.90%   -0.15%     
==========================================
  Files         490      493       +3     
  Lines       82916    83473     +557     
==========================================
+ Hits        66373    66697     +324     
- Misses      16543    16776     +233     

Flag	Coverage Δ
python	79.90% <ø> (-0.15%)	⬇️

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