Attempt to fix a macos random failure

[fizyk]

Chore that needs to be done:

• Add newsfragment pipenv run towncrier create [issue_number].[type].rst

Types are defined in the pyproject.toml, issue_number either from issue tracker or the Pull request number

Summary by CodeRabbit

• Tests

  • Optimised test configuration for improved distributed parallel execution across multiple worker processes.

• Chores

  • Implemented targeted fixes for intermittent CI nondeterministic failures on MacOS. Addressed database initialisation issues in test execution that previously caused resource conflicts when running tests across distributed workers.

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[coderabbitai]

Walkthrough

The pull request adds a pytest xdist group marker to the test_executor_init_with_password test to prevent port conflicts across xdist workers on macOS. A news fragment documents this fix for a sporadic CI failure.

Changes

Cohort / File(s)	Summary
Test configuration tests/test_executor.py	Adds pytest.mark.xdist_group("executor_no_xdist_guard") to test_executor_init_with_password to isolate test execution and prevent concurrent port usage.
Release documentation newsfragments/+831f24cb.misc.rst	Adds news fragment describing the fix for nondeterministic CI failures on macOS caused by xdist workers competing for database ports during test initialisation.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A marker placed with care so fine,
Prevents the port conflicts' design,
On macOS where workers dance,
Now each test gets its rightful chance,
No more "database starting up" cry—
Just smooth CI tests passing by! 🌙

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title refers to fixing a macOS random failure, which aligns with the PR's objective to address a CI nondeterministic failure on macOS, but lacks specificity about what the fix actually addresses (xdist grouping for the test_executor_init_with_password test).
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing touches

• 📝 Generate docstrings

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[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@newsfragments/`+831f24cb.ci.rst:
- Line 4: Update the sentence fragment "doesn't have a guards" to the correct
grammar "doesn't have guards" in the news fragment string so the line reads
"...That's the only test that doesn't have guards against attempting to start on
the same port as other xdist worker." Search for that exact phrase to locate and
replace it.