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feat: Support "stop" parameter in remote:vLLM (#1715)

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# What does this PR do?

This adds support for "stop" parameter:
https://platform.openai.com/docs/api-reference/completions/create#completions-create-stop

## Test Plan

```
tests/integration/inference/test_text_inference.py::test_text_completion_non_streaming[txt=8B-inference:completion:sanity] PASSED                                  [  5%]
tests/integration/inference/test_text_inference.py::test_text_completion_streaming[txt=8B-inference:completion:sanity] PASSED                                      [ 11%]
tests/integration/inference/test_text_inference.py::test_text_completion_stop_sequence[txt=8B-inference:completion:stop_sequence] PASSED                           [ 16%]
tests/integration/inference/test_text_inference.py::test_text_completion_log_probs_non_streaming[txt=8B-inference:completion:log_probs] PASSED                     [ 22%]
tests/integration/inference/test_text_inference.py::test_text_completion_log_probs_streaming[txt=8B-inference:completion:log_probs] PASSED                         [ 27%]
tests/integration/inference/test_text_inference.py::test_text_completion_structured_output[txt=8B-inference:completion:structured_output] PASSED                   [ 33%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_non_streaming[txt=8B-inference:chat_completion:non_streaming_01] PASSED              [ 38%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_non_streaming[txt=8B-inference:chat_completion:non_streaming_02] PASSED              [ 44%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_first_token_profiling[txt=8B-inference:chat_completion:ttft] ^TPASSED                  [ 50%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_streaming[txt=8B-inference:chat_completion:streaming_01] PASSED                      [ 55%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_streaming[txt=8B-inference:chat_completion:streaming_02] PASSED                      [ 61%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_with_tool_calling_and_non_streaming[txt=8B-inference:chat_completion:tool_calling] PASSED [ 66%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_with_tool_calling_and_streaming[txt=8B-inference:chat_completion:tool_calling] PASSED [ 72%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_with_tool_choice_required[txt=8B-inference:chat_completion:tool_calling] PASSED      [ 77%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_with_tool_choice_none[txt=8B-inference:chat_completion:tool_calling] PASSED          [ 83%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_structured_output[txt=8B-inference:chat_completion:structured_output] PASSED         [ 88%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_tool_calling_tools_not_in_request[txt=8B-inference:chat_completion:tool_calling_tools_absent-True] PASSED [ 94%]
tests/integration/inference/test_text_inference.py::test_text_chat_completion_tool_calling_tools_not_in_request[txt=8B-inference:chat_completion:tool_calling_tools_absent-False] PASSED [100%]

=============================================================== 18 passed, 3 warnings in 755.79s (0:12:35) ===============================================================
```

---------

Signed-off-by: Yuan Tang <terrytangyuan@gmail.com>
This commit is contained in:
Yuan Tang 2025-03-24 15:42:55 -04:00 • committed by GitHub
parent 9ff82036f7
commit 441016bee8
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6 changed files with 79 additions and 4 deletions
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27
tests/integration/inference/test_text_inference.py
View file

@ -99,6 +99,33 @@ def test_text_completion_streaming(client_with_models, text_model_id, test_case)
assert len(content_str) > 10
@pytest.mark.parametrize(
"test_case",
[
"inference:completion:stop_sequence",
],
)
def test_text_completion_stop_sequence(client_with_models, text_model_id, inference_provider_type, test_case):
skip_if_model_doesnt_support_completion(client_with_models, text_model_id)
# This is only supported/tested for remote vLLM: https://github.com/meta-llama/llama-stack/issues/1771
if inference_provider_type != "remote::vllm":
pytest.xfail(f"{inference_provider_type} doesn't support 'stop' parameter yet")
tc = TestCase(test_case)
response = client_with_models.inference.completion(
content=tc["content"],
stream=True,
model_id=text_model_id,
sampling_params={
"max_tokens": 50,
"stop": ["1963"],
},
)
streamed_content = [chunk.delta for chunk in response]
content_str = "".join(streamed_content).lower().strip()
assert "1963" not in content_str
@pytest.mark.parametrize(
"test_case",
[