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Title: gh-138013: Move I/O test infrastructre to test_io.utils by cmaloney · Pull Request #138475 · python/cpython · GitHub

Open Graph Title: gh-138013: Move I/O test infrastructre to test_io.utils by cmaloney · Pull Request #138475 · python/cpython

X Title: gh-138013: Move I/O test infrastructre to test_io.utils by cmaloney · Pull Request #138475 · python/cpython

Description: Moves the I/O test support code to test.test_io.utils leaving all test cases as they are. The code was moved via copy/paste then adjusted imports as needed (remove unneded + add all required). I plan to do a code update + two more direct code movement to split tests from test_general to increase parallelism and logical layout. Times are runtime on my 64 bit linux debug build output by slow tests when running ./python -m test test_io -uall,walltime,largefile,extralargefile -M16G -o -j0 Move buffered tests into test_bufferedio Remove custom load_tests w/ test list from test_general GH-138771 (see: GH-138369) Move SignalsTest to test_signals (21.4s) Move TextIOWrapperTest and IncrementalDecoder tests to test_textio (1.1s) The longest remaining test in test_general after that for me is test_daemon_threads_shutdown_*_deadlock which takes ~7s (and is marked with requires_resource('walltime')). Runtime of test_io reduces from ~34.1s -> 21.4s (SignalsTest is now longest) via increased parallelism. Issue: gh-138013

Open Graph Description: Moves the I/O test support code to test.test_io.utils leaving all test cases as they are. The code was moved via copy/paste then adjusted imports as needed (remove unneded + add all required). I p...

X Description: Moves the I/O test support code to test.test_io.utils leaving all test cases as they are. The code was moved via copy/paste then adjusted imports as needed (remove unneded + add all required). I p...

Opengraph URL: https://github.com/python/cpython/pull/138475

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c28ff5f gh-138013: Move buffered tests to test_bufferedio cmaloney Sep 3, 2025 https://github.com/python/cpython/pull/138475/commits/c28ff5f35b0874a8763195528f0809879b87f9ab
2ba448a Merge branch 'main' into split_buffered cmaloney Sep 9, 2025 https://github.com/python/cpython/pull/138475/commits/2ba448aaa973a38efaa7bd9a973ddba9dc554e09
08727a3 Change to just split out util cmaloney Sep 10, 2025 https://github.com/python/cpython/pull/138475/commits/08727a388a4af8a1491dcfd1213814ce497ed251
6fb6fcd util -> utils cmaloney Sep 10, 2025 https://github.com/python/cpython/pull/138475/commits/6fb6fcdde9199cf858003690542ff915890871dd
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