test(consistent): avoid collecting guaranteed backend skips

[njzjz-bot]

Summary

• prune inherited backend consistency tests from collection when the generated parameterized class already knows they are unsupported
• keep the change centralized in source/tests/consistent/common.py instead of editing many individual suites
• reduce CI skip noise and collection overhead without changing intended backend coverage

Testing

• python3 -m py_compile source/tests/consistent/common.py

Closes #5371

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Authored by OpenClaw (model: gpt-5.4)

Summary by CodeRabbit

Release Notes

• Tests

  • Improved test collection efficiency by automatically excluding disabled test methods at subclass initialization, preventing unnecessary test runner overhead across different backend configurations.

• Documentation

  • Updated documentation for test configuration attributes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 3c14ed35-fff6-4d31-9f61-0f2cfe4dadf4

📥 Commits

Reviewing files that changed from the base of the PR and between 9d63816 and bfc5727.

📒 Files selected for processing (1)

• source/tests/consistent/common.py

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📝 Walkthrough

Walkthrough

Adds subclass-time pruning of inherited test methods guaranteed to skip by implementing __init_subclass__ hook that identifies disabled test methods via backend skip flags, CI conditions, and missing dependencies, then shadows those methods to prevent test collection.

Changes

Cohort / File(s)

Summary

Test Pruning Mechanism source/tests/consistent/common.py

Added __init_subclass__ hook, _prune_disabled_test_methods() classmethod to shadow disabled tests by setting them to None, and _disabled_test_methods() classmethod to resolve backend skip flags (skip_tf/skip_dp/skip_pt/skip_pt_expt/skip_jax/skip_pd/skip_array_api_strict), handle missing pt_expt_class, and extend disabled set based on CI + non-CPU execution context. Updated array_api_strict_class docstring.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 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 summarizes the main change: implementing collection-time pruning of guaranteed backend skips in consistency tests.
Linked Issues check	✅ Passed	The PR implements collection-time filtering to prevent guaranteed backend skips from being collected, directly addressing issue #5371's primary objective of reducing collection overhead and skip noise.
Out of Scope Changes check	✅ Passed	All changes are scoped to source/tests/consistent/common.py with focused additions for pruning disabled test methods and a docstring update, all directly supporting the stated objective.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.39%. Comparing base (d42732e) to head (bfc5727).
⚠️ Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5425      +/-   ##
==========================================
+ Coverage   80.35%   82.39%   +2.03%     
==========================================
  Files         819      824       +5     
  Lines       85445    87395    +1950     
  Branches     4139     4198      +59     
==========================================
+ Hits        68661    72008    +3347     
+ Misses      15508    14112    -1396     
+ Partials     1276     1275       -1     

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