litellm/tests/test_litellm/llms/custom_httpx
devin-ai-integration[bot] 1edc4ba580
fix(logging): pass provider response headers to callbacks on every endpoint (#42824)
* fix(logging): pass provider response headers to callbacks on every endpoint

Custom callbacks only received kwargs["response_headers"] for chat
completions. Responses, image generation and edit, speech, and
transcription calls either never recorded the provider's headers or
recorded them in one place and not the other.

Every handler now records the provider's httpx headers on the response's
hidden params as "headers" (raw) and "additional_headers" (processed,
with LiteLLM's own entries winning on a clash), and the logging object
derives model_call_details["response_headers"] from those hidden params
before cost calculation on the non-stream and both streaming success
paths, keeping a handler-set value authoritative. Binary speech responses
expose their hidden params to the standard logging payload, and the sync
OpenAI transcription request always fetches the raw response.

* test(images): point the legacy image and speech fakes at the raw response surface

Image generation now goes through the SDK's raw response so the provider headers can be read, and the speech binary response now carries hidden params. The unit fakes in the image generation, xinference, proxy provider, image edit, Vertex speech, and otel suites still pinned the old call surface and the old "no hidden params" assertion, so they read an uncalled mock or a fake response without headers.

* test(images): drop the rewritten mock comments and the generated edit PNGs

* test(images): move the llm-span test's image fake to the raw response surface

---------

Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
2026-09-24 13:01:12 -07:00
..
test_aiohttp_cleanup_closed.py fix(http): stop pooled clients persisting cookies on the aiohttp jar too (#36149) 2026-08-07 11:05:59 -07:00
test_aiohttp_handler.py fix(aiohttp): honor global ssl_verify on the aiohttp_openai handler path 2026-08-26 13:24:36 -07:00
test_aiohttp_so_keepalive.py fix(http): stop pooled clients persisting cookies on the aiohttp jar too (#36149) 2026-08-07 11:05:59 -07:00
test_aiohttp_transport.py fix(aiohttp_transport): map transport-internal CancelledError to a retryable ConnectError (#39240) 2026-09-01 17:55:47 -07:00
test_asgi_handler.py feat(router): native compact-to-fit across conversation APIs (#42074) 2026-09-21 22:52:29 -07:00
test_async_client_cleanup.py fix(async_client_cleanup): stop cleanup from resurrecting healed clients 2026-08-04 22:43:40 -07:00
test_container_handler.py fix(containers): surface provider errors from container file content endpoint (#37737) 2026-08-20 16:46:26 -07:00
test_credential_leak_prevention.py test: drop the cwd-relative sys.path.insert calls from the test suite (#37802) 2026-08-22 09:25:58 -07:00
test_gemini_session_leak.py Fix __main__ exit bug, close litellm_async_client, restore global state 2026-03-14 18:14:42 -07:00
test_http_handler.py fix(langsmith): json.dumps with default=str so non-serializable metadata does not crash batch flush (#42424) 2026-09-22 12:21:11 -07:00
test_llm_http_handler.py fix(logging): pass provider response headers to callbacks on every endpoint (#42824) 2026-09-24 13:01:12 -07:00
test_mock_transport.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00