[dmccoystephenson]

Summary

Stage B (unit-test expansion) cycle for drawImage's image cache.

• Adds test_draw_image_cache_survives_a_pygame_restart. The comment in drawImage justifies skipping the font cache's display-session invalidation by saying that a surface from pygame.image.load survives a pygame.quit()/init() cycle ("verified empirically"). No test covered that claim, so a pygame upgrade that broke it would have gone unnoticed and the cache would blit stale surfaces. The new test draws an image, restarts pygame, rebinds the instance to the new display, and asserts:
  • the cached surfaces are reused (no reload, no rescale), and
  • they still draw correctly (pixel colors inside and outside the region).
• This is a characterization test only. No production code was changed.

No tracking issue: the gap was found during triage.

Mutation check

A display-session invalidation was temporarily added to drawImage, so that the cache was dropped after the restart. The new test then failed (assert ([('…/red.bmp',)], …) == ([], [])). After graphik.py was restored, the test passed again.

Test plan

• python3 -m py_compile src/main/python/preponderous/graphik/graphik.py
• SDL_VIDEODRIVER=dummy python3 -m pytest: 62 passed (61 before)
• The new test runs headless under the dummy SDL driver (via conftest.py)

Triage notes (deferred issues)

All four open issues were skipped this cycle because each needs a maintainer decision or a change to .github/workflows/, which is excluded from autonomous change:

• release: version tags are pushed without the 'v' prefix publish.yml requires, so no release has ever been published #34: the release tagging convention needs a maintainer decision and touches publish.yml.
• ci: test.yml's header comment claims it runs on every push, but pushes outside main are only covered via pull_request #39: this is a comment fix inside .github/workflows/test.yml.
• packaging: the empty preponderous/__init__.py ships a regular package, which will collide with any future preponderous.* distribution #40: whether to delete the namespace __init__.py depends on sibling-project conventions, which is a maintainer call.
• release: publish.yml's wheel smoke test never imports Graphik, so a wheel missing graphik.py would still publish #46: the smoke-test change is inside .github/workflows/publish.yml.

A documentation sweep of README.md, RELEASING.md, pyproject.toml and the in-code docstrings found no drift beyond what those issues already track.

This PR description was drafted during a Gardener session (https://github.com/Stephenson-Software/gardener).

🤖 Generated with Claude Code

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drafted by Claude on behalf of Daniel Stephenson

[dmccoystephenson]

Self-review rubric (performed inline; no independent reviewer was available):

• Scope: PASS. The only file touched is src/test/python/preponderous/graphik/test_graphik.py (one new test plus a comment fix).
• Tests-new: PASS (n/a). No new public method was added.
• Tests-fix: PASS (n/a, characterization). The mutation check is still recorded: with display-session invalidation temporarily added to drawImage, the test failed; with graphik.py restored, it passed.
• Sibling structure: PASS. The test reuses the existing _make_graphik, _write_solid_image, _count_image_loads, _count_image_scales and _rgb helpers and sits with the other drawImage cache tests.
• Sibling renames: PASS (n/a). Nothing was renamed.
• Docs: PASS. No behavior changed, so README.md, RELEASING.md and the docstrings stay accurate.
• Issue resolution: PASS (n/a). There is no Closes reference.
• Manual validation: PASS. The Compile and test jobs are green on 3.9, 3.10, 3.11, 3.12 and 3.13, and locally pytest reports 62 passed.
• camelCase / Backward-compat / No new deps: PASS. graphik.py was not modified.
• Headless: PASS. The test runs under the dummy SDL driver set by conftest.py.

Findings:

• src/test/python/preponderous/graphik/test_graphik.py:445: the original comment said that the test as a whole "fails" if the restart claim stops holding. That was imprecise, because the no-reload assertion would still pass in that case and only the pixel assertions would catch it. The comment was corrected in a follow-up commit.
• Out-of-diff observation: the test rebinds the public gameDisplay attribute after the restart. Apex already uses that attribute, so relying on it in a test adds no new contract.

This review was drafted during a Gardener session (https://github.com/Stephenson-Software/gardener).

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drafted by Claude on behalf of Daniel Stephenson