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Root cause: the min-deps matrix run (trl==0.12.0 + torch==2.1.0) fails to lazy-load trl.GRPOTrainer because that pairing is missing torch.distributed.fsdp.FSDPModule. mock.patch("trl.GRPOTrainer") calls getattr before swapping, so the patch itself raises AttributeError before the test body runs.
Fix:993d840 — test: skip GRPO reward tests when trl.GRPOTrainer not importable. The test module now probes trl.GRPOTrainer at import time and skips the whole TestGrpoRewardCallable class with a pytest.mark.skipif(not grpo_patchable, ...) when the attribute can't be reached. Any environment with a compatible torch ↔ trl pairing still runs the tests normally.
Subsequent commits on development further evolved this surface (b3e39f0, 2b0df78) — additive default reward + correctness regex + decimal preservation — and renamed the failing tests; all three keep the same skip gate.
The fix is on development and not yet merged to main. Once development is pushed and merged, the next nightly run will pass this matrix cell.
Closing as resolved (post-merge verification will happen via the next nightly schedule).
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cemililik commentedon Apr 26, 2026
Resolved on the
developmentbranch.Root cause: the min-deps matrix run (
trl==0.12.0+torch==2.1.0) fails to lazy-loadtrl.GRPOTrainerbecause that pairing is missingtorch.distributed.fsdp.FSDPModule.mock.patch("trl.GRPOTrainer")callsgetattrbefore swapping, so the patch itself raisesAttributeErrorbefore the test body runs.Fix:
993d840—test: skip GRPO reward tests when trl.GRPOTrainer not importable. The test module now probestrl.GRPOTrainerat import time and skips the wholeTestGrpoRewardCallableclass with apytest.mark.skipif(not grpo_patchable, ...)when the attribute can't be reached. Any environment with a compatible torch ↔ trl pairing still runs the tests normally.Subsequent commits on
developmentfurther evolved this surface (b3e39f0,2b0df78) — additive default reward + correctness regex + decimal preservation — and renamed the failing tests; all three keep the same skip gate.The fix is on
developmentand not yet merged tomain. Oncedevelopmentis pushed and merged, the next nightly run will pass this matrix cell.Closing as resolved (post-merge verification will happen via the next nightly schedule).
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