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* fix(tests): use gpt-realtime in realtime guardrails test
OpenAI shut down gpt-4o-realtime-preview-2024-12-17 on 2026-05-07, so
the live OpenAI realtime guardrails integration test now fails with
model_not_found (session.created never arrives, _wait_for_event times
out). Point OPENAI_REALTIME_URL at the current GA model, gpt-realtime.
Scope limited to this test: the pricing-catalog JSON keeps the retired
entries intentionally (historical cost calc + separate Azure timeline),
and the Azure realtime cost-calc test is unaffected.
* fix(tests): mock nvidia_nim rerank instead of hitting EOL'd endpoint
NVIDIA reached end-of-life for the hosted nvidia/llama-3.2-nv-rerankqa-1b-v2
rerank API on 2026-05-18 with no published replacement, so the live
BaseLLMRerankTest.test_basic_rerank for nvidia_nim now returns HTTP 410
("Gone"). NVIDIA's hosted catalog rotates on a schedule, so swapping in
another live model would only defer the failure.
Override test_basic_rerank in TestNvidiaNim to mock the sync/async HTTP
transport (same pattern as test_nvidia_nim_rerank_ranking_endpoint in this
file) and inject a fake NVIDIA_NIM_API_KEY via monkeypatch. The
request/response transformation and cost calculation stay covered offline.
Scope limited to nvidia_nim; other BaseLLMRerankTest providers untouched.
* fix(tests): migrate remaining realtime tests off shut-down gpt-4o-realtime-preview
OpenAI's 2026-05-07 shutdown removed the entire gpt-4o-realtime-preview
family, including the undated 'gpt-4o-realtime-preview' alias (not just the
dated snapshot fixed earlier). Three live tests still connected with the
dead alias and failed with messages_received=1 (an error event instead of
session.created):
- test_openai_realtime_simple.py: get_model() -> gpt-realtime (drives
TestOpenAIRealtime.test_realtime_connection / test_realtime_with_query_params)
- test_openai_realtime.py: test_openai_realtime_direct_call_no_intent and
test_openai_realtime_direct_call_with_intent -> openai/gpt-realtime
(the with_intent test shares the same dead alias even though it was not
in the failing set this run)
Mocked unit tests (test_realtime_query_params_construction,
test_realtime_query_params_use_normalized_model_name) are left as-is: they
never hit the network and assert string plumbing only.
Also fixes test_text_message_blocked_by_guardrail_no_ai_response, which now
connects (the earlier URL swap worked) but tripped a model-wording-brittle
assertion. The guardrail flow asks the model to voice the block message
verbatim; gpt-4o-realtime-preview complied (output contained 'blocked'),
gpt-realtime refuses verbatim-repeat instructions ('I'm sorry, but I can't
repeat that message.'). Since the original user message is blocked before
it reaches OpenAI, the refusal is still a safe outcome. Assertion #3 now
accepts both voicing and refusal, and adds a hard check that the blocked
phrase never leaks into AI output.
(cherry picked from commit
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|---|---|---|
| .. | ||
| fixtures | ||
| realtime | ||
| test-skill | ||
| test_llm_response_utils | ||
| test_skills_data | ||
| base_audio_transcription_unit_tests.py | ||
| base_embedding_unit_tests.py | ||
| base_llm_unit_tests.py | ||
| base_rerank_unit_tests.py | ||
| conftest.py | ||
| dog.wav | ||
| duck.png | ||
| gettysburg.wav | ||
| guinea.png | ||
| log.xt | ||
| Readme.md | ||
| test_a2a.py | ||
| test_anthropic_completion.py | ||
| test_aws_base_llm.py | ||
| test_azure_agents.py | ||
| test_azure_ai.py | ||
| test_azure_o_series.py | ||
| test_azure_openai.py | ||
| test_bedrock_agentcore.py | ||
| test_bedrock_agents.py | ||
| test_bedrock_anthropic_regression.py | ||
| test_bedrock_common_utils.py | ||
| test_bedrock_completion.py | ||
| test_bedrock_dynamic_auth_params_unit_tests.py | ||
| test_bedrock_embedding.py | ||
| test_bedrock_govcloud.py | ||
| test_bedrock_gpt_oss.py | ||
| test_bedrock_invoke_tests.py | ||
| test_bedrock_llama.py | ||
| test_bedrock_mantle.py | ||
| test_bedrock_moonshot.py | ||
| test_bedrock_nova_embedding.py | ||
| test_bedrock_nova_json.py | ||
| test_cloudflare.py | ||
| test_cohere.py | ||
| test_containers_api.py | ||
| test_convert_dict_to_image.py | ||
| test_crusoe.py | ||
| test_databricks.py | ||
| test_deepgram.py | ||
| test_deepseek_completion.py | ||
| test_elevenlabs.py | ||
| test_evals_api.py | ||
| test_fireworks_ai_translation.py | ||
| test_gemini.py | ||
| test_gemini_image_usage.py | ||
| test_gigachat.py | ||
| test_gpt4o_audio.py | ||
| test_groq.py | ||
| test_hosted_vllm_embedding_e2e.py | ||
| test_huggingface_chat_completion.py | ||
| test_hyperbolic.py | ||
| test_infinity.py | ||
| test_jina_ai.py | ||
| test_lambda_ai.py | ||
| test_langgraph.py | ||
| test_litellm_proxy_provider.py | ||
| test_minimax_tts.py | ||
| test_mistral_api.py | ||
| test_model_cost_map_resilience.py | ||
| test_morph.py | ||
| test_nvidia_nim.py | ||
| test_openai.py | ||
| test_openai_o1.py | ||
| test_openrouter.py | ||
| test_optional_params.py | ||
| test_perplexity_reasoning.py | ||
| test_prompt_caching.py | ||
| test_prompt_factory.py | ||
| test_replicate.py | ||
| test_rerank.py | ||
| test_router_llm_translation_tests.py | ||
| test_sambanova_chat_transformation.py | ||
| test_skills_api.py | ||
| test_skills_e2e.py | ||
| test_snowflake.py | ||
| test_text_completion.py | ||
| test_text_completion_unit_tests.py | ||
| test_together_ai.py | ||
| test_triton.py | ||
| test_unit_test_bedrock_invoke.py | ||
| test_v0.py | ||
| test_vcr_conftest_common_banner.py | ||
| test_vcr_redis_persister.py | ||
| test_voyage_ai.py | ||
| test_watsonx.py | ||
| test_xai.py | ||
Unit tests for individual LLM providers.
Name of the test file is the name of the LLM provider - e.g. test_openai.py is for OpenAI.
Redis-backed VCR cache
Every test in this directory is auto-decorated with @pytest.mark.vcr (via
conftest.py). The first time a test runs we hit the live provider and
record the HTTP exchange into Redis under
litellm:vcr:cassette:<test_id>. Every subsequent run within 24h replays
from Redis without touching the network. The 24h TTL means each new day's
first run records again, so upstream API drift surfaces within a day.
The persister, header scrubbing, and 2xx-only filtering are defined in
tests/_vcr_redis_persister.py. Files that already use respx (which
patches the same httpx transport vcrpy does) are excluded from the
auto-marker — see _RESPX_CONFLICTING_FILES in conftest.py.
The same VCR cache is used by other test directories that exercise live
provider APIs. The reusable conftest plumbing lives in
tests/_vcr_conftest_common.py and is wired into:
tests/llm_translation/tests/llm_responses_api_testing/tests/audio_tests/tests/batches_tests/tests/guardrails_tests/tests/image_gen_tests/tests/litellm_utils_tests/tests/local_testing/(coverslocal_testing_part1,local_testing_part2,litellm_router_testing,litellm_assistants_api_testing,langfuse_logging_unit_tests)tests/logging_callback_tests/tests/pass_through_unit_tests/tests/router_unit_tests/tests/unified_google_tests/
Test directories that run LiteLLM proxy in Docker (e.g. build_and_test,
proxy_logging_guardrails_model_info_tests, proxy_store_model_in_db_tests)
are intentionally not included: VCR.py patches the in-process httpx
transport, so it cannot intercept the LLM calls that originate inside the
Docker container.
Required environment
CASSETTE_REDIS_URL — separate Redis instance from the application
Redis (REDIS_URL/REDIS_HOST) so test cassettes are not flushed by
proxy tests. Provider credentials (ANTHROPIC_API_KEY, OPENAI_API_KEY,
AWS_*, etc.) are needed only on cache-miss (the daily re-record), not
on replay.
Flushing the cache
When you want the next run to re-record immediately instead of waiting for the 24h TTL:
make test-llm-translation-flush-vcr-cache
Disabling VCR
Skip the cache entirely (every call goes live, no recording):
LITELLM_VCR_DISABLE=1 uv run pytest tests/llm_translation/test_<file>.py