ci: only run smoke-test-examples on manual workflow_dispatch

[endolith]

Background

smoke-test-examples runs the full stochastic example scripts (pytest tests/test_examples.py -m slow) to verify reference values against the published tables. It is useful for one-off checks when changing joblib/parallelism code.

Problem

The Monte Carlo output occasionally exceeds its tolerance by pure chance. On 6e08e9e (merge of #87) the job failed on weber_1977_effectiveness_table.py with a 4.206 deviation against atol=4.0; the identical example code then passed on fc3d1eb. Running it on every push/PR blocks merges randomly with no code change involved.

Visible symptoms

CI run 30938429399 shows smoke-test-examples failing with AssertionError: Max absolute difference among violations: 4.20580657 while every other job passes.

What this PR changes

• Gate the smoke-test-examples job on github.event_name == 'workflow_dispatch'. The workflow already declares workflow_dispatch in on:, so the job stays available from the Actions tab for manual runs (skipped on push/PR). Slow tests remain excluded from normal pytest runs via the existing -m 'not slow' addopts.
• Widen the per-script tolerances a little (e.g. weber_1977_effectiveness_table 4.0 -> 5.0, merrill_1984_table_1_fig_1 3.5 -> 4.0, others 3.0 -> 3.5, weber_1977_table_4 0.2 -> 0.3) to cut flake probability while still catching real regressions.

Tests

Tolerance values are read directly from TOLERANCES; no test logic changed. The gating is a CI-only change verified by parsing the workflow.

Summary by CodeRabbit

• Tests
  • Updated example validation thresholds to accommodate expected variation in stochastic results.
• Chores
  • Adjusted automated example smoke tests to run only when manually initiated.
  • Added documentation clarifying why these tests are skipped for pushes and pull requests.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 8a772e2a-e589-441c-afc7-b8ffe2a07af6

📥 Commits

Reviewing files that changed from the base of the PR and between fc3d1eb and 49b7604.

📒 Files selected for processing (2)

• .github/workflows/python-package.yml
• tests/test_examples.py

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📝 Walkthrough

Walkthrough

The example smoke-test job now runs only on manual workflow dispatches. Example result comparisons use higher absolute tolerances for Merrill and Weber outputs.

Changes

Example smoke-test adjustments

Layer / File(s)	Summary
Manual smoke-test execution .github/workflows/python-package.yml	The smoke-test-examples job runs only for manually dispatched workflows.
Example result tolerances tests/test_examples.py	The tests use higher absolute tolerances for Merrill and Weber example results.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• endolith/elsim#87: Updates the same smoke-test workflow and example-result tolerances.
• endolith/elsim#89: Modifies the same example-result comparisons for row-shape and emptiness validation.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the primary CI workflow change.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ci/gate-smoke-test-examples

---

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[what-the-diff]

PR Summary

• Refined GitHub Actions Execution Process

  • The execution process of GitHub actions has been refined. This involves modifying the smoke-test-examples job to be performed only when triggered manually. This decision was taken to avoid potential random failures in the tests, thereby providing a more efficient testing process. Previously, this job was triggered by any changes made (push and pull request events).

• Increased Tolerance Levels in Tests

  • To improve the accuracy of the testing process, tolerance values of a number of tests in the tests/test_examples.py file have been increased. A higher tolerance value implies greater flexibility in the tests, thus reducing the chances of errors. The specifics changes in each file are:
    • merrill_1984_table_1_fig_1.py: The value has increased from 3.5 to 4.0.
    • merrill_1984_table_2.py: The value has increased from 3.0 to 3.5.
    • merrill_1984_table_3_fig_3.py: The value has increased from 3.0 to 3.5.
    • merrill_1984_table_4.py: The value has increased from 3.0 to 3.5.
    • weber_1977_effectiveness_table.py: The value has increased from 4.0 to 5.0.
    • weber_1977_table_4.py: The value has increased from 0.2 to 0.3.

This PR brings about increased efficiency in the testing process by refining the error-detecting mechanism and granting higher resilience towards variability in the results.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.37%. Comparing base (fc3d1eb) to head (49b7604).

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #94   +/-   ##
=======================================
  Coverage   96.37%   96.37%           
=======================================
  Files          17       17           
  Lines         496      496           
=======================================
  Hits          478      478           
  Misses         18       18           

Flag	Coverage Δ
no-numba	95.76% <ø> (ø)
numba	88.10% <ø> (ø)

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