litellm/tests/unit/llms/openai
paveln83 06cdee91da
fix(guardrails): scan and rewrite streamed /v1/completions under post_call guardrails (#49035)
* feat(guardrails): scan and rewrite streamed /v1/completions in post_call pipelines

Gives OpenAITextCompletionHandler a process_output_streaming_response that
assembles the buffered TextCompletionResponse chunks per choice index at end
of stream, runs the guardrail over the assembled text, and writes text
rewrites back into the first text-carrying chunk of each choice. Tests and
live proof still pending.

* fix(guardrails): scan and rewrite streamed /v1/completions under post_call guardrails

Assemble each choice's streamed text once the stream ends, run the guardrail on it, write a mask back into the buffered chunks, and end the stream with the guardrail's error on a block. User key metadata now goes through the shared metadata bucket so applied guardrails reach spend logs.

* test(guardrails): cover streamed /v1/completions under post_call guardrails

* fix(guardrails): keep Gray Swan key metadata, scan a cut-short text stream, and pass non-chunk frames through

* fix(guardrails): replace blocked text completion streams like chat, keep Gray Swan's vendor payload, scan text streams in the content filter

* fix(guardrails): release an unfinished choice's held text and omit usage the upstream never sent

The content filter's streaming hook held back the end of a choice until its
finish_reason, which litellm sends only for the first choice of an n>1
stream, so choice 1 lost its last characters on text and chat streams. A
closing chunk now releases every unfinished choice when the stream ends.

A blocked text stream's closing chunk reported 0/0 usage when the upstream
sent none; it now carries usage only when the upstream reported it.

* fix(guardrails): send no usage on the content filter's end-of-stream chunk

* fix(guardrails): keep the usage chunk last and log the masked text of streamed text completions

* fix(guardrails): stream Responses API events through the content filter as they arrive

* fix(guardrails): treat a null text completion choice index as choice zero when assembling streams

---------

Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
2026-10-29 08:46:49 -07:00
..
chat fix(llms): move later developer messages for models declared system-first (#48897) 2026-10-29 04:12:13 -07:00
completion fix(guardrails): scan and rewrite streamed /v1/completions under post_call guardrails (#49035) 2026-10-29 08:46:49 -07:00
decisions fix(decisions): preserve omitted probabilities (#48449) (#48524) 2026-10-26 19:49:32 -07:00
embeddings test: add package initializers to migrated unit test directories 2026-09-20 11:52:07 +00:00
evals fix(llms): join api_base and route with one shared helper (#47535) 2026-10-21 06:59:32 +00:00
image_generation refactor(images): remove dall-e-2 and dall-e-3 code paths (#48703) 2026-10-28 17:48:09 -07:00
live feat(realtime): proxy OpenAI Live sessions on /v1/live/sessions (#43621) 2026-10-13 13:59:27 -07:00
realtime fix: preserve explicit provider for async image, audio, and realtime routes (#36346) 2026-10-15 05:21:43 -07:00
responses fix(openai): warn when the GPT-5 reasoning effort gate drops a level under drop_params (#47761) 2026-10-29 04:46:29 -07:00
speech test: add package initializers to migrated unit test directories 2026-09-20 11:52:07 +00:00
transcriptions test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
vector_store_files fix(proxy)!: return provider-matching 4xx for the LIT-8062 status code follow-ups (#45537) 2026-10-13 11:42:39 -07:00
vector_stores test: add package initializers to migrated unit test directories 2026-09-20 11:52:07 +00:00
videos test: add package initializers to migrated unit test directories 2026-09-20 11:52:07 +00:00
__init__.py test(unit): make every tests/unit directory a package so pytest collection is unique 2026-09-20 11:50:59 +00:00
test_cost_calculation.py test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
test_data_residency.py test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
test_gpt_reasoning_transformation.py fix(openai): warn when the GPT-5 reasoning effort gate drops a level under drop_params (#47761) 2026-10-29 04:46:29 -07:00
test_is_model_gpt_5_model.py refactor(llms): rename model-version transformation files to family names (#48509) 2026-10-26 18:53:16 -07:00
test_o_series_transformation.py fix(llms): move later developer messages for models declared system-first (#48897) 2026-10-29 04:12:13 -07:00
test_openai.py fix(llms): move later developer messages for models declared system-first (#48897) 2026-10-29 04:12:13 -07:00
test_openai_authentication_error.py test: migrate local_testing SDK and provider tests out of build_and_test (#45760) 2026-10-10 23:14:25 +00:00
test_openai_common_utils.py fix(token_counter): count OpenAI models newer than tiktoken's table with o200k_base (#48728) 2026-10-29 00:08:12 -07:00
test_openai_empty_response.py fix(openai): send chat completions through client.post so the SDK's per-message param transform stops holding the event loop (#46967) 2026-10-16 18:06:01 -07:00
test_openai_file_content_streaming.py test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
test_openai_image_edit_transformation.py test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
test_openai_workload_identity.py feat(openai)!: honor per-deployment workload identity on non-chat routes (#39966) 2026-10-16 22:25:15 +00:00
test_organization_costs.py test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
test_use_chat_completions_api_no_leak.py fix(openai): send chat completions through client.post so the SDK's per-message param transform stops holding the event loop (#46967) 2026-10-16 18:06:01 -07:00