test stream write cancellation support and beast2::write tests

[MungoG]

No description provided.

[cppalliance-bot]

GCOVR code coverage report https://102.beast2.prtest3.cppalliance.org/gcovr/index.html
LCOV code coverage report https://102.beast2.prtest3.cppalliance.org/genhtml/index.html
Coverage Diff https://102.beast2.prtest3.cppalliance.org/gcovr/coverage_diff.txt

Build time: 2025-12-10 17:56:33 UTC

[codecov]

Codecov Report

❌ Patch coverage is 84.46602% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 56.96%. Comparing base (4efe8e8) to head (303cb20).

Files with missing lines	Patch %	Lines
include/boost/beast2/test/impl/stream.hpp	89.88%	9 Missing ⚠️
include/boost/beast2/test/detail/stream_state.hpp	50.00%	4 Missing ⚠️
include/boost/beast2/impl/write.hpp	50.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #102      +/-   ##
===========================================
+ Coverage    53.19%   56.96%   +3.77%     
===========================================
  Files           38       38              
  Lines         1690     1808     +118     
===========================================
+ Hits           899     1030     +131     
+ Misses         791      778      -13     

Files with missing lines	Coverage Δ
include/boost/beast2/test/stream.hpp	100.00% <ø> (ø)
include/boost/beast2/impl/write.hpp	45.09% <50.00%> (+45.09%)	⬆️
include/boost/beast2/test/detail/stream_state.hpp	83.33% <50.00%> (-1.29%)	⬇️
include/boost/beast2/test/impl/stream.hpp	93.95% <89.88%> (+2.46%)	⬆️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

❌ Patch coverage is 86.11111% with 20 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.41%. Comparing base (4c1170c) to head (b64bc65).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
include/boost/beast2/test/impl/stream.hpp	90.90%	11 Missing ⚠️
include/boost/beast2/test/detail/stream_state.hpp	50.00%	8 Missing ⚠️
include/boost/beast2/impl/write.hpp	85.71%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #102      +/-   ##
===========================================
+ Coverage    41.43%   48.41%   +6.97%     
===========================================
  Files           35       35              
  Lines         1272     1384     +112     
===========================================
+ Hits           527      670     +143     
+ Misses         745      714      -31     

Files with missing lines	Coverage Δ
include/boost/beast2/test/stream.hpp	100.00% <ø> (ø)
include/boost/beast2/impl/write.hpp	84.31% <85.71%> (+84.31%)	⬆️
include/boost/beast2/test/detail/stream_state.hpp	81.81% <50.00%> (-2.80%)	⬇️
include/boost/beast2/test/impl/stream.hpp	93.30% <90.90%> (+1.81%)	⬆️

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4c1170c...b64bc65. Read the comment docs.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[vinniefalco]

please flatten this branch (no merge commits)

[MungoG]

please flatten this branch (no merge commits)

Sure. Will do so before merging.

[cppalliance-bot]

An automated preview of the documentation is available at https://102.beast2.prtest3.cppalliance.org/index.html

If more commits are pushed to the pull request, the docs will rebuild at the same URL.

2025-12-10 17:50:52 UTC