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test: gate POSIX-only stdlib (resource, signal.alarm, chmod modes) on the Windows leg #2102
Description
Job 120605026883, the first Windows run of #2095's leg, fails on POSIX-only stdlib used by the tests:
resource:test_extraction_no_eof'sCHILD_PREAMBLEimports it (5 cases).test_tier_guard::PythonStubTests::test_the_capped_command_is_recorded_without_the_real_interpreterrunsutil/cap_file_size.py, which is POSIX-only by design.signal.alarm:tests/test_support_helpers.pyandtests/protocols/test_option_generator_deadline_scale_1428_unit.pyerror at collection on a module-levelsignal.alarm.- Mode bits:
test_vendor_snapshot_restore_unit::…previous_file_byte_for_byte_intactexpects0o640and gets0o666, because Windowschmodsets only the read-only bit.
Proposed: an empty CHILD_CAP on nt, as on GraalPy; getattr(signal, 'alarm', None) plus a skip; and skip the mode check on nt.
Activity
test: skip POSIX-only stdlib on Windows (#2102)
JarryShaw commentedon Oct 23, 2026
Fixed on
mainas47cfedd54(test-only): theresourceimport moved intoCHILD_CAP, which is empty onnt;signal.alarmis read withgetattr, and those tests skip without it; thecap_file_sizecase and the vendor test's0o640mode check skip onnt.test_windows_posix_gates_2102_unitfakes Windows and fails 5 checks without the change.