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* feat(guardrails): add run_in_parallel opt-in for concurrent pre_call guardrails Pre-call guardrails run sequentially because each may mutate the request payload and later guardrails depend on earlier mutations. Deployments with several slow block-only pre_call guardrails (external moderation, Bedrock, LLM-judge) therefore pay the sum of their latencies. during_call guardrails run concurrently but alongside the LLM call, so a violating payload has already been sent, which is unacceptable when the request must never reach the model. This adds a per-guardrail run_in_parallel flag (default off). Guardrails that opt in are pulled out of the sequential loop and run concurrently via asyncio.gather after every sequential (payload-mutating) guardrail has run, so they observe the mutated payload and still form a hard barrier before the LLM call; the first to raise blocks the request. Their returned data is discarded since they are declared block-only. The flag is wired from LitellmParams onto the guardrail instance at the same generic choke point in initialize_guardrail that already sets skip_system_message_in_guardrail, so no per-provider initializer needs to change. * feat(guardrails): extend run_in_parallel opt-in to post_call guardrails post_call_success_hook ran guardrails sequentially for the same reason pre_call did: response-modifying guardrails thread the response forward. But block-only output scanners (which read the response and reject on violation without changing it) serialize for no benefit and add latency. This reuses the existing run_in_parallel flag for the post_call hook. Opted-in post_call guardrails are pulled out of the sequential loop and run concurrently via asyncio.gather after the sequential (response-modifying) guardrails and before the non-guardrail CustomLogger callbacks, so they inspect the final response and still block it from reaching the client if any raises. Their returned response is discarded since they are block-only. The apply_guardrail path sets data["guardrail_to_apply"] immediately before awaiting, and unified_guardrail pops it before its first suspension point, so concurrent guardrails never race on that key under asyncio's cooperative scheduling. * fix(guardrails): await all parallel guardrails and prioritize blocks over reroutes Addresses review feedback on the run_in_parallel opt-in. asyncio.gather propagated the first exception without cancelling or awaiting the siblings, so a block at t=0 left the other guardrails running as unobserved background tasks (wasted external calls plus event-loop warnings), and a fast SensitiveDataRouteException/ModifyResponseException could return a reroute or passthrough before a slower block finished, letting crafted input bypass the block. Both the pre_call and post_call parallel batches now gather with return_exceptions=True so every guardrail runs to completion, then raise any blocking exception ahead of a flow-changing one. The registry choke point wrote bool(None)==False onto every instance when the config omitted run_in_parallel, silently disabling a constructor-set default; it now only writes when the config provides an explicit value. * fix(guardrails): record lifecycle logs for every concurrently-run guardrail The log_guardrail_information decorator skipped its auto-record when it saw that the count of standard_logging_guardrail_information entries in the shared request_data had grown during the wrapped call, taking that as proof the wrapped function had recorded its own richer entry. That heuristic breaks the moment guardrails run concurrently (parallel pre_call/post_call, during_call): a sibling guardrail's append inflates the shared count, so a guardrail that did not self-record wrongly concludes it already did and drops its own entry. The result is that enabling run_in_parallel silently loses per-guardrail lifecycle logs, so the Admin UI Request Lifecycle timeline and downstream loggers (Datadog, Langfuse, OTEL, spend logs) show only one of the concurrent guardrails. Replace the shared-count heuristic with a ContextVar flag set when a guardrail records its own entry. asyncio copies the context into each gathered task, so the flag is isolated per concurrent guardrail while still catching the self-record-then-skip-auto-record case within a single invocation. * test(guardrails): declare run_in_parallel on post_call guardrail mocks The post_call partition reads run_in_parallel on every CustomGuardrail callback. A MagicMock(spec=CustomGuardrail) has no run_in_parallel (it is set in __init__, not on the class) so the attribute access raised, and even a class-level default would return a truthy child mock that wrongly routes the double into the parallel batch. Declare the flag False on the shared mock factories so these pre-existing hook tests exercise the sequential path they assert on. * fix(guardrails): harden run_in_parallel reads and address review feedback Read run_in_parallel via getattr(..., False) in the pre_call and post_call partitions so a third-party CustomGuardrail subclass that overrides __init__ without chaining super().__init__() no longer raises AttributeError on a path that previously worked. Drop the redundant in-function GuardrailEventHooks import in _run_parallel_post_call_guardrails (already imported module-level). Remove the flaky wall-clock upper-bound assertions from the two concurrency tests; the all-start-before-any-end overlap assertion is the timing-independent signal that actually proves concurrency. |
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| .. | ||
| a2a_protocol | ||
| anthropic_interface | ||
| batches | ||
| caching | ||
| completion_extras | ||
| containers | ||
| enterprise | ||
| expected_fine_tuning_api | ||
| expected_responses_api_request | ||
| experimental_mcp_client | ||
| google_genai | ||
| images | ||
| integrations | ||
| interactions | ||
| litellm_core_utils | ||
| llms | ||
| models | ||
| ocr | ||
| passthrough | ||
| proxy | ||
| rag | ||
| realtime_api | ||
| repositories | ||
| rerank_api | ||
| responses | ||
| router_strategy | ||
| router_utils | ||
| sandbox | ||
| secret_managers | ||
| test_router | ||
| types | ||
| vector_stores | ||
| videos | ||
| __init__.py | ||
| conftest.py | ||
| log.txt | ||
| readme.md | ||
| test__types.py | ||
| test_a2a_registry_lookup.py | ||
| test_acompletion_session_reuse_e2e.py | ||
| test_add_deployment_no_master_key.py | ||
| test_aembedding_session_reuse_e2e.py | ||
| test_anthropic_beta_headers_filtering.py | ||
| test_anthropic_skills_transformation.py | ||
| test_anthropic_sonnet_1hr_cache_pricing.py | ||
| test_audio_transcription_rust_bridge.py | ||
| test_azure_ad_token_credential_resolution.py | ||
| test_azure_video_router.py | ||
| test_batch_completion_models_all_responses.py | ||
| test_bedrock_anthropic_1hr_cache_pricing.py | ||
| test_bedrock_usgov_haiku_1hr_cache.py | ||
| test_bedrock_usgov_pricing.py | ||
| test_budget_ratchet_check.py | ||
| test_chat_ui_responses_session.py | ||
| test_check_licenses.py | ||
| test_check_type_discipline.py | ||
| test_circleci_path_filter.py | ||
| test_claude_fable_5_config.py | ||
| test_claude_haiku_4_5_config.py | ||
| test_claude_opus_4_6_config.py | ||
| test_claude_opus_4_8_config.py | ||
| test_claude_opus_5_config.py | ||
| test_claude_sonnet_4_6_config.py | ||
| test_claude_sonnet_5_config.py | ||
| test_cloudflare_workers_ai_model_metadata.py | ||
| test_command_r7b_pricing.py | ||
| test_completion_timeout_resolution.py | ||
| test_compression.py | ||
| test_constants.py | ||
| test_container_router.py | ||
| test_cost_calculation_log_level.py | ||
| test_cost_calculator.py | ||
| test_count_tokens_public_api.py | ||
| test_dashscope_image_generation.py | ||
| test_deepseek_model_metadata.py | ||
| test_dockerfile_non_root.py | ||
| test_eager_tiktoken_load.py | ||
| test_exception_exports.py | ||
| test_exception_header_preservation.py | ||
| test_exception_mapping_request_attribute.py | ||
| test_filter_out_litellm_params.py | ||
| test_get_blog_posts.py | ||
| test_git_hooks.py | ||
| test_github_close_low_quality_prs.py | ||
| test_github_review_gate.py | ||
| test_github_triage_with_llm.py | ||
| test_github_triage_workflows.py | ||
| test_gpt_5_5_model_metadata.py | ||
| test_gpt_5_6_model_metadata.py | ||
| test_gpt_image_cost_calculator.py | ||
| test_gpt_realtime_mode.py | ||
| test_groq_streaming_encoding.py | ||
| test_guardrail_exception_status_codes.py | ||
| test_lazy_imports.py | ||
| test_litellm_params_reserved_keys.py | ||
| test_logging.py | ||
| test_lowest_latency_zero_tokens.py | ||
| test_main.py | ||
| test_main_module_header.py | ||
| test_mistral_medium_3_5_model_metadata.py | ||
| test_model_block_unblock.py | ||
| test_model_cost_aliases.py | ||
| test_model_param_helper.py | ||
| test_model_response_normalization.py | ||
| test_muse_spark_1_1_model_metadata.py | ||
| test_nested_drop_params.py | ||
| test_openai_embedding_encoding_format_default.py | ||
| test_prisma_generate_if_needed.py | ||
| test_project_alias_tracking.py | ||
| test_project_tags_pydantic.py | ||
| test_rag_openai_ingestion.py | ||
| test_rate_limit_error_unification.py | ||
| test_redact_string_in_error_paths.py | ||
| test_redis.py | ||
| test_register_model_custom_pricing.py | ||
| test_register_model_zero_cost_persistence.py | ||
| test_responses_api_bridge_non_stream.py | ||
| test_responses_id_security.py | ||
| test_responses_streaming_container_ownership.py | ||
| test_retrieve_batch_bedrock_dispatch.py | ||
| test_router.py | ||
| test_router_block_helpers.py | ||
| test_router_exception_redaction.py | ||
| test_router_google_genai.py | ||
| test_router_model_cost_isolation.py | ||
| test_router_order_fallback.py | ||
| test_router_per_deployment_num_retries.py | ||
| test_router_redis_init.py | ||
| test_router_retry_non_retryable_errors.py | ||
| test_router_retry_policy_update.py | ||
| test_router_silent_experiment.py | ||
| test_router_streaming_fallback_metadata.py | ||
| test_router_weighted_failover.py | ||
| test_ruff_strict_gate.py | ||
| test_secret_redaction.py | ||
| test_service_logger.py | ||
| test_setup_wizard.py | ||
| test_shared_session_integration.py | ||
| test_ssl_verify_unit.py | ||
| test_stream_chunk_builder_annotations.py | ||
| test_streaming_connection_cleanup.py | ||
| test_system_message_format_bug.py | ||
| test_thinking_enabled.py | ||
| test_triage_rollout_heads_up.py | ||
| test_type_check_gate.py | ||
| test_type_discipline_gate.py | ||
| test_utils.py | ||
| test_utils_module_docstring.py | ||
| test_uuid_helper.py | ||
| test_vcr_safe_body_matcher.py | ||
| test_video_generation.py | ||
| test_xai_grok_4_3_model_metadata.py | ||
| test_xai_responses_auto_routing.py | ||
Testing for litellm/
This directory 1:1 maps the the litellm/ directory, and can only contain mocked tests.
The point of this is to:
- Increase test coverage of
litellm/ - Make it easy for contributors to add tests for the
litellm/package and easily run tests without needing LLM API keys.
File name conventions
litellm/proxy/test_caching_routes.pymaps tolitellm/proxy/caching_routes.pytest_<filename>.pymaps tolitellm/<filename>.py