Add mcoplib mcoplib unit test matrix

[ghangz]

Summary

• Adds a focused mcoplib unit test matrix improvement for MetaX-MACA/mcoplib.
• The change targets MetaX MACA development and validation workflows, with emphasis on earlier diagnostics, reproducible logs, or safer benchmark tooling.
• Existing default behavior is kept compatible; the new logic is scoped to explicit checks, helper tools, or validation metadata.

Validation

• Verified on Gitee.AI MetaX GPU resources: mcoplib_McFlashInfer_TileLang_20260701, mcoplib and McFlashInfer batch 18/18 PASS.
• Branch validation command: python tools/unit_test_matrix.py --self-test
• Pull request text is intentionally ASCII-only to avoid encoding issues on web forms and API clients.

Review notes

• Source branch: ghangz:mengz/mcoplib-unit-test-matrix
• Target branch: MetaX-MACA/mcoplib:main
• Maintainers can modify this branch if follow-up adjustments are needed.

[gemini-code-assist]

Code Review

This pull request introduces a new Python script, tools/unit_test_matrix.py, which generates a reproducible validation matrix for MACA GPU testing based on test names, data types, and scopes. The feedback suggests replacing the assert statements in the self-test function with explicit conditional checks and raising exceptions, as assertions can be optimized out and ignored when Python is run with optimization flags.

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[gemini-code-assist]

Using assert statements for validation or control flow in production/tooling code is discouraged. When Python is run with optimization flags (such as python -O), all assert statements are compiled out and ignored. This would cause the self-test to report success even if the validation checks fail.\n\nInstead, use explicit conditional checks and raise an appropriate exception (e.g., ValueError or RuntimeError).

    if not rows:\n        raise RuntimeError("Self-test failed: build_matrix returned no rows.")\n    if "test" not in rows[0]:\n        raise RuntimeError("Self-test failed: 'test' key missing in the generated matrix row.")