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Use sysmon for coverage on Python 3.12 #970

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Merged
junkmd merged 4 commits into from
Oct 19, 2026
Merged

Use sysmon for coverage on Python 3.12 #970

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4e57ec9
ci: Use sysmon coverage core on Python 3.12
junkmd Oct 19, 2026
f9d43c2
ci: avoid canceling remaining unit-test matrix runs on flaky failures
junkmd Oct 19, 2026
a7372f2
test: temporarily skip flaky test_eval on Python 3.12.
junkmd Oct 19, 2026
f026043
ci: update comments.
junkmd Oct 19, 2026
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11 changes: 11 additions & 0 deletions .github/workflows/autotest.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,10 @@ jobs:
unit-tests:
runs-on: ${{ matrix.os }}
strategy:
# Keep all matrix variants running even when one of the flaky unit-test
# combinations fails. This makes it easier to collect the remaining
# signal and avoids cancelling healthy runs.
fail-fast: false
matrix:
os: [windows-latest]
python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.15']
Expand All @@ -28,6 +32,13 @@ jobs:
nmake /f Makefile
./server.exe /RegServer
- name: unittest comtypes
env:
# The normal coverage core uses `sys.settrace`. In Python 3.12, this
# kind of tracing is very slow. `sysmon` uses Python's newer
# `sys.monitoring` API.
# It gets line events from Python with less extra work, so the test
# job can finish faster.
COVERAGE_CORE: ${{ matrix.python-version == '3.12' && 'sysmon' || '' }}
run: |
if ("${{ matrix.support }}" -eq "with 3rd parties") {
pip install numpy
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2 changes: 1 addition & 1 deletion comtypes/test/test_comserver.py
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Expand Up @@ -141,7 +141,7 @@ class TestInproc_win32com(BaseServerTest, unittest.TestCase):
def create_object(self):
return Dispatch("TestComServerLib.TestComServer")

if sys.version_info >= (3, 14):
if sys.version_info >= (3, 14) or sys.version_info[:2] == (3, 12):

@unittest.skip("Fails occasionally with a memory leak on INPROC.")
def test_eval(self):
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