[ishtiaq156]

Current upstream status — November 7, 2026: This test-only PR was merged non-force with upstream main db206a46; the one test_dmsh_pairs.py conflict was resolved in favor of main's production-compatible output(...) test fixture while preserving the extra missing-pixel regression test. Both focused modules passed 14/14 on that updated branch (d1e3ac6f). The earlier shader-pair output fix is already on main through 5e344a87 (part of #1590); the Xcode fixture's check_formats fix independently appears in open #1675. Thus this draft is partially superseded, and may become redundant after #1675; it is not a Wonder Edition merge prerequisite. Retain it as draft until the overlap is reconciled. Historical reproduction and regression counts follow.

Why

The saved draft #1564 Tool tests log showed six FileNotFoundError failures in the Xcode preparation fixture and two NameError: output failures in shader-pair tests. I reproduced all eight errors using the same two test modules on a new clean worktree at main commit b2d46b86; these are pre-existing generic test failures, not introduced by #1564.

Changes

• In the synthetic Xcode preparation fixture, mock check_formats (the fixture creates RomFS/ and ExeFS/ but deliberately no real RomFS.img); assert that the preparation pipeline still passes the selected extracted version to the format-check stage.
• In the shader-pair AST test harness, provide the fixture-backed output(label, name) dependency that production vs_pad obtains from its module. Verify an absent pixel shader output is skipped rather than padded.
• Tests only: no production source or user/game files changed. Real RomFS integrity logic remains exercised separately by test_romfs_image.

Validation

• Before on clean b2d46b86: python -m unittest -v dm.ios.tests.test_xcode_workflow dm.gfx.tests.test_dmsh_pairs — 12 tests, 8 errors (six Xcode subtests, two shader-pair tests).
• After: those modules 13/13 PASS, including the new missing-pixel-output case.
• Expanded five-module run (test_xcode_workflow, test_dmsh_pairs, test_dmsh_pull, test_romfs_image, test_dmsh_code_fp): 39/39 PASS.
• Python py_compile and git diff --check: PASS.
• Pinned ruff==0.17.2, pyright==1.1.414 ratchet using dm/tools/lint_python.py --against b2d46b86: 371 findings / 371 baseline / 0 new / 0 fixed outstanding.

Other unrelated existing CI tool-test failures appear in the saved log (SeenShaders.test_shader_watch_counts_the_list, test_dmsh_pool_arrays). This PR does not claim the entire Tool tests job is green or alter those issues.

Related observation: draft #1564's failure reproduces on unchanged main; no changes are requested to #1564.

[ishtiaq156]

Closing this CI fixture PR as the substantive Xcode check_formats fixture fix and shader-pair output() compatibility correction are already present on main.

The additional missing-pixel-output regression test in this branch remains unmerged, but this PR is no longer required for the Wonder Edition integration.