test(vllm): accept upstream validation of asymmetric features

[bzsuni]

Overview:

Update the TITO asymmetric-feature validation tests for vLLM 0.30
Related PRs: #15179 #15182

vLLM 0.30 rejects mismatched multimodal keys during GenerateRequest
validation, before reaching Dynamo's image-feature validation. These inputs
therefore raise a Pydantic ValidationError instead of Dynamo's TypeError

Details:

Allow either validation path while still matching the specific rejection
messages. The same malformed inputs must still be rejected

No production behavior changes.

Observed in nightly CI

Where should the reviewer start?

test_tito_adapter_rejects_asymmetric_image_feature_objects() in
components/src/dynamo/vllm/tests/test_vllm_engine_generate.py

Validation

Black, isort, and git diff --check passed

Related Issues

• Confirmed — no related issue

Summary by CodeRabbit

• Tests
  • Updated validation coverage to accept either supported error type and the applicable validation message for asymmetric image-feature inputs.

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👋 Hi bzsuni! Thank you for contributing to ai-dynamo/dynamo.

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📥 Commits

Reviewing files that changed from the base of the PR and between 8e41fd8 and 3b13f58.

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• components/src/dynamo/vllm/tests/test_vllm_engine_generate.py

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Walkthrough

The asymmetric image-feature validation test now accepts TypeError or Pydantic’s ValidationError and matches either of two validation messages.

Changes

Image-feature validation

Layer / File(s)	Summary
Update validation test expectation components/src/dynamo/vllm/tests/test_vllm_engine_generate.py	The test imports ValidationError and accepts it or TypeError. It matches either the existing list-validation error or the modality-mismatch error. A comment notes that vLLM 0.30 validates modality keys before Dynamo’s adapter.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 3b13f

This updates a single validation test to accept vLLM 0.30's earlier rejection of mismatched multimodal keys. It has no production behavior impact and is low risk to merge.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the test update to accept upstream validation of asymmetric features.
Description check	✅ Passed	The description includes the required overview, details, reviewer starting point, and related-issues sections. It explains the vLLM 0.30 validation change, test impact, and validation performed.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[KrishnanPrash]

/ok to test 3b13f58

[karen-sy]

Thanks for the contribution! #15380 just merged for the same fix, so we are closing it as duplicate.