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Fix timeout report generation race #816

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@sywhang sywhang commented Nov 20, 2021

When fx is run with a very short timeout, it's possible for the
timeout error message to be in a bad format "OnStart hook added by failed"
where the name of the OnStart hook's caller hasn't been recorded
before the context times out.

This fixes the error message generation to not rely on the OnStart hook's
caller always being known to fix this race.

Fixes #815

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codecov bot commented Nov 20, 2021

Codecov Report

Merging #816 (1a810d4) into master (88cdb34) will decrease coverage by 0.21%.
Report is 176 commits behind head on master.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #816      +/-   ##
==========================================
- Coverage   99.26%   99.05%   -0.21%     
==========================================
  Files          25       25              
  Lines         950      954       +4     
==========================================
+ Hits          943      945       +2     
- Misses          6        7       +1     
- Partials        1        2       +1     
Files Coverage Δ
app.go 99.02% <100.00%> (-0.65%) ⬇️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

When fx is run with a very short timeout, it's possible for the
timeout error message to be in a bad format "OnStart hook added by  failed"
where the name of the OnStart hook's caller hasn't been recorded
before the context times out.

This fixes the error message generation to not rely on the OnStart hook's
caller always being known to fix this race.

Fixes uber-go#815
@sywhang sywhang marked this pull request as draft November 22, 2021 21:35
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Race in timeout failure report generation
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