litellm/tests/test_litellm
Maximilian Roos 250816eaeb
fix(http_handler): keep a handler alive while its responses are still streaming
Closing an httpx client tears down the connection pool every response from that
client is streaming through. litellm caches HTTP handlers for one hour, and
nothing in a streaming response's reference graph points back at the handler --
httpx binds the response to the transport stream and the pool, never to the
client's wrapper. So when the cache entry expires, the handler's last reference
goes with it while its responses are still being read, GC runs `__del__`, and
every in-flight body on that pool is cut. The clock is per process and anchored
at first client construction, which is why the failures arrive in hourly bursts.

Rather than guard the finalizer, make it unreachable while the client is in use.
`create_client` installs one httpx `response` event hook that stamps the owning
handler onto `response.extensions`, so a response keeps its handler alive; the
handler is collected once its last response is gone and the existing `__del__`
then closes the client exactly as it does today. Both `__del__` bodies are
unchanged -- only the timing moves, so the disposal path cannot regress.

The hook closes over a weak reference to the handler, never a strong one: a
strong one would make the handler immortal and its client would never be closed
at all. There is a test for that specific invariant.

This reaches the paths a fix in `post()` cannot: the proxy passthrough routes
take `.client` off the handler and stream from the raw client, so the handler is
a function local that dies on return. An event hook on the client still sees
those responses.

Everything used is public httpx surface -- the `event_hooks` setter and
`Response.extensions`. That matters because litellm's default transport is
aiohttp, whose connector exposes no public way to ask whether a connection is in
use, so a fix built on httpcore's pool would pass under
DISABLE_AIOHTTP_TRANSPORT=true and silently do nothing by default. The
regression test is parameterized over both transports.

The sync twin in `HTTPHandler` has the same defect and gets the same treatment.

Fixes #24929
2026-07-27 13:30:09 -07:00
..
a2a_protocol fix(responses): stop scheduling sync success_handler concurrently with async_success_handler (#32239) 2026-07-07 09:13:50 -07:00
anthropic_interface fix(rust): route agentic-completion-hook /messages requests to Python for all stream modes (#34126) 2026-07-22 00:36:47 +00:00
batches Revert "chore(ci): sync litellm_internal_staging into daily OSS branch (#33337)" (#33339) 2026-07-14 19:32:25 -07:00
caching Merge remote-tracking branch 'origin/litellm_internal_staging' into litellm_/test-coverage-mutation-analysis-e42223 2026-07-23 23:52:11 -07:00
completion_extras fix(responses): strip include_usage from stream_options instead of dropping the param 2026-07-24 16:46:49 -07:00
containers fix(containers): record ownership for service-account keys + fix Prisma Json serialization (#28990) 2026-05-27 21:00:07 -07:00
enterprise refactor(ui): point invitation links at the dedicated /onboarding route (#30857) 2026-07-08 19:47:05 -07:00
expected_fine_tuning_api
expected_responses_api_request test(responses): replace perma-skip azure shell e2e with offline coverage (#32444) 2026-07-08 10:01:41 -07:00
experimental_mcp_client fix(mcp): sanitize Anthropic tool schemas and stop encoding gateway names 2026-07-17 10:33:28 -07:00
google_genai chore: litellm oss staging 250626 (#31305) 2026-06-25 21:00:28 -07:00
images fix(image_edit): read vertex_project/location from litellm_params in Imagen get_complete_url 2026-04-21 15:03:40 +05:30
integrations fix(otel): stamp an MCP tool failure on the request that carried it (#34551) 2026-07-25 17:32:53 +00:00
interactions fix(interactions): add queued to the Interaction status enum (#34135) 2026-07-21 12:36:21 -07:00
litellm_core_utils Merge pull request #34556 from BerriAI/litellm_azure_claude_1m_context 2026-07-25 18:32:28 -07:00
llms fix(http_handler): keep a handler alive while its responses are still streaming 2026-07-27 13:30:09 -07:00
models feat(litellm): add models and repository layers (#29686) 2026-06-06 20:59:33 -07:00
ocr test: litellm fix failing tests (#32577) 2026-07-09 13:54:45 -07:00
passthrough fix(passthrough): stream non-sse passthrough responses instead of buffering in memory (#32386) 2026-07-07 20:51:15 -07:00
proxy Merge pull request #34660 from BerriAI/litellm_lit4804_compresr_cache_control 2026-07-27 11:17:51 -07:00
rag fix(rag): track LLM completion usage and spend for /v1/rag/query (#32438) 2026-07-17 17:45:27 +00:00
realtime_api fix(realtime): preserve nested transcription model and session-first model priority 2026-07-03 14:21:22 -07:00
repositories fix(team): make team member add atomic to prevent concurrent-add member loss (#34185) 2026-07-22 21:47:22 +00:00
rerank_api fix(rerank): log optional_rerank_params at debug to stop leaking request content (#32533) 2026-07-08 18:48:03 -07:00
responses fix(responses): strip include_usage from stream_options instead of dropping the param 2026-07-24 16:46:49 -07:00
router_strategy feat(complexity-router): add return_raw_model_name toggle for response model field (#33875) 2026-07-18 19:24:56 -07:00
router_utils fix(router): take the lowest minimum across a model group, not the highest 2026-07-16 19:53:10 -07:00
sandbox feat: add opensandbox sandbox provider (#31024) 2026-06-23 09:05:13 -07:00
secret_managers fix(bedrock): stop replaying expired Google OIDC tokens to STS on guardrail auth (#34637) 2026-07-25 16:27:54 -07:00
test_router fix(logging): stop pinning large request payloads past request end (#33455) 2026-07-15 15:28:37 -07:00
types perf(core): fast-path SafeAttributeModel.__delattr__ for declared fields (#33993) 2026-07-21 00:06:56 +00:00
vector_stores style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
videos test(videos): add 1:1 test file scaffold for videos component paths (#30631) 2026-06-29 09:12:51 +05:30
__init__.py
conftest.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
log.txt
readme.md
test__types.py Litellm OSS Staging 010626 (#29422) 2026-06-01 21:42:51 -07:00
test_a2a_registry_lookup.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_acompletion_session_reuse_e2e.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_add_deployment_no_master_key.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_aembedding_session_reuse_e2e.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_anthropic_beta_headers_filtering.py chore(oss): litellm oss staging 120626 (#30292) 2026-06-12 09:49:25 -07:00
test_anthropic_skills_transformation.py fix: encode upstream URL path identifiers 2026-04-29 22:02:39 -07:00
test_anthropic_sonnet_1hr_cache_pricing.py chore: litellm oss staging160626 (#30527) 2026-06-16 18:23:13 -07:00
test_audio_transcription_rust_bridge.py perf(bedrock): audio transcription via rust core (py->rust bridge) (#33990) 2026-07-20 14:09:41 -07:00
test_azure_ad_token_credential_resolution.py chore(oss): litellm oss staging 150626 (#30463) 2026-06-16 12:06:41 -07:00
test_azure_video_router.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_batch_completion_models_all_responses.py test(batches): move orphan tests into tests/test_litellm for CI coverage (#30510) 2026-06-16 10:20:59 -07:00
test_bedrock_anthropic_1hr_cache_pricing.py Litellm oss staging 030626 (#29578) 2026-06-03 11:01:51 -07:00
test_bedrock_usgov_haiku_1hr_cache.py Litellm OSS Staging 010626 (#29422) 2026-06-01 21:42:51 -07:00
test_bedrock_usgov_pricing.py Litellm OSS Staging 010626 (#29422) 2026-06-01 21:42:51 -07:00
test_budget_ratchet_check.py refactor(lint): collapse type/lint budgets to a single per-rule limit (#31883) 2026-07-01 18:12:35 +03:00
test_chat_ui_responses_session.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_check_licenses.py fix(check_licenses): read PEP 639 license-expression metadata (#28529) 2026-05-22 11:22:38 -07:00
test_check_type_discipline.py chore(lint): zero out crash-class pyright rules and ban new type: ignore comments (#32152) 2026-07-04 16:56:12 -07:00
test_circleci_path_filter.py ci: gate CircleCI jobs on changed paths (#32080) 2026-07-04 19:15:08 -07:00
test_claude_fable_5_config.py Revert "chore(ci): sync litellm_internal_staging into daily OSS branch (#33337)" (#33339) 2026-07-14 19:32:25 -07:00
test_claude_haiku_4_5_config.py feat(anthropic): add Claude Opus 4.8 and prune reasoning-effort flags (#29238) 2026-05-28 18:50:33 -07:00
test_claude_opus_4_6_config.py fix(azure_ai): advertise 1M context window for Claude Opus 4.6+ on Foundry 2026-07-24 21:53:12 +00:00
test_claude_opus_4_8_config.py fix(azure_ai): advertise 1M context window for Claude Opus 4.6+ on Foundry 2026-07-24 21:53:12 +00:00
test_claude_opus_5_config.py feat(anthropic): add Claude Opus 5 2026-07-24 10:43:49 -07:00
test_claude_sonnet_4_6_config.py feat(anthropic): add Claude Opus 4.8 and prune reasoning-effort flags (#29238) 2026-05-28 18:50:33 -07:00
test_claude_sonnet_5_config.py fix(model_prices): apply claude-sonnet-5 introductory pricing through 2026-08-31 (#31917) 2026-07-01 17:45:57 -07:00
test_cloudflare_workers_ai_model_metadata.py feat(cloudflare): add current Workers AI text-generation models to the cost map (#31051) 2026-06-23 10:44:37 -07:00
test_command_r7b_pricing.py chore: litellm oss 170626 (#30637) 2026-06-17 21:11:12 -07:00
test_completion_timeout_resolution.py fix(router): honor litellm_settings.request_timeout as an independent per-attempt timeout (#31119) 2026-06-23 14:22:54 -07:00
test_compression.py Prompt Compression - add it to the proxy (#25729) 2026-04-20 15:08:00 -07:00
test_constants.py
test_container_router.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_cost_calculation_log_level.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_cost_calculator.py fix(cost_calculator): sum mirrored cache token fields once in combine_usage_objects 2026-07-23 19:07:09 -07:00
test_count_tokens_public_api.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_dashscope_image_generation.py fix(dashscope): fail fast on image generation API errors 2026-04-23 18:41:01 +05:30
test_deepseek_model_metadata.py Revert "Merge pull request #16590 from Chesars/refactor/remove-backup-file-dry-principle" 2026-04-25 17:10:41 -03:00
test_dockerfile_non_root.py fix(docker.non_root): use numeric UID 65534 for K8s runAsNonRoot (#26268) 2026-04-22 18:00:04 -07:00
test_eager_tiktoken_load.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_exception_exports.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_exception_header_preservation.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_exception_mapping_request_attribute.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_filter_out_litellm_params.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_get_blog_posts.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_git_hooks.py chore(hooks): enforce Conventional Commits and Conventional Branches (#30174) 2026-06-11 10:00:23 -07:00
test_github_close_low_quality_prs.py feat(agent-shin): automated PR/issue triage, low-quality auto-close, and review-gate label lifecycle (#30433) 2026-06-17 20:42:27 -07:00
test_github_review_gate.py feat(agent-shin): automated PR/issue triage, low-quality auto-close, and review-gate label lifecycle (#30433) 2026-06-17 20:42:27 -07:00
test_github_triage_with_llm.py feat(agent-shin): automated PR/issue triage, low-quality auto-close, and review-gate label lifecycle (#30433) 2026-06-17 20:42:27 -07:00
test_github_triage_workflows.py fix(test): drop references to removed Agent Shin workflows (#30791) 2026-06-18 15:47:51 -07:00
test_gpt_5_5_model_metadata.py chore: litellm oss staging160626 (#30527) 2026-06-16 18:23:13 -07:00
test_gpt_5_6_model_metadata.py Revert "chore(ci): sync litellm_internal_staging into daily OSS branch (#33337)" (#33339) 2026-07-14 19:32:25 -07:00
test_gpt_image_cost_calculator.py chore: litellm oss staging (#31185) 2026-06-26 09:17:44 -07:00
test_gpt_realtime_mode.py test(pricing): pin the realtime mode assertion to the bundled cost map (#33806) 2026-07-18 02:52:55 +00:00
test_groq_streaming_encoding.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_guardrail_exception_status_codes.py Litellm oss staging (#28161) 2026-05-18 16:27:44 -07:00
test_lazy_imports.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_litellm_params_reserved_keys.py
test_logging.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_lowest_latency_zero_tokens.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_main.py Revert "chore(ci): sync litellm_internal_staging into daily OSS branch (#33337)" (#33339) 2026-07-14 19:32:25 -07:00
test_main_module_header.py Add main module header comment 2026-05-06 00:26:17 +00:00
test_mistral_medium_3_5_model_metadata.py fix(cost-map): retarget mistral-medium-latest to Medium 3.5 and add date-pinned aliases (#31373) 2026-06-25 18:27:18 -07:00
test_model_block_unblock.py feat: litellm oss 110626 (#30202) 2026-06-11 22:30:26 -07:00
test_model_cost_aliases.py
test_model_param_helper.py style: black format test_model_param_helper.py 2026-04-15 18:18:52 -07:00
test_model_response_normalization.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_muse_spark_1_1_model_metadata.py Revert "chore(ci): sync litellm_internal_staging into daily OSS branch (#33337)" (#33339) 2026-07-14 19:32:25 -07:00
test_nested_drop_params.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_openai_embedding_encoding_format_default.py fix(embeddings): allow omitting encoding_format via env sentinel none 2026-05-01 23:03:13 +05:30
test_prisma_generate_if_needed.py perf(lint): skip and cache base gate passes, parallelize make lint, skip redundant prisma generate (#32000) 2026-07-02 19:24:00 -07:00
test_project_alias_tracking.py
test_project_tags_pydantic.py
test_rag_openai_ingestion.py chore: litellm oss staging (#30745) 2026-06-18 13:55:35 -07:00
test_rate_limit_error_unification.py feat: standardize rate limit errors with category, rate_limit_type, model, and llm_provider fields (#27687) 2026-06-06 17:50:29 -07:00
test_redact_string_in_error_paths.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_redis.py fix(redis): honor ssl value instead of key presence when building async connection pool (#32590) 2026-07-16 13:38:01 -07:00
test_register_model_custom_pricing.py fix(utils): resolve bedrock regional inference profiles to regional pricing in get_model_info (LIT-4056) (#32389) 2026-07-07 20:49:03 -07:00
test_register_model_zero_cost_persistence.py chore(oss): litellm oss staging 150626 (#30463) 2026-06-16 12:06:41 -07:00
test_responses_api_bridge_non_stream.py Revert "chore(ci): sync litellm_internal_staging into daily OSS branch (#33337)" (#33339) 2026-07-14 19:32:25 -07:00
test_responses_id_security.py fix(responses_id_security): decrypt response ids for input_items follow-ups (#32269) 2026-07-06 14:03:15 -07:00
test_responses_streaming_container_ownership.py chore(oss): litellm oss staging 150626 (#30463) 2026-06-16 12:06:41 -07:00
test_retrieve_batch_bedrock_dispatch.py feat(batch-job): bedrock batch model invocation job retrieval (#26834) 2026-05-11 13:22:26 -07:00
test_router.py fix(router): don't cool down parent deployment on advisor sub-call failure (#33792) 2026-07-25 10:17:13 -07:00
test_router_block_helpers.py feat: litellm oss 110626 (#30202) 2026-06-11 22:30:26 -07:00
test_router_exception_redaction.py fix(router): mask provider credentials embedded in fallback error messages (#32083) 2026-07-03 18:48:06 -07:00
test_router_google_genai.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_router_model_cost_isolation.py fix(router): propagate capability flags to shared backend cost map key 2026-07-20 16:46:30 -07:00
test_router_order_fallback.py chore: litellm oss staging160626 (#30527) 2026-06-16 18:23:13 -07:00
test_router_per_deployment_num_retries.py fix(router): honor request-level num_retries over global litellm_settings.num_retries (#34124) 2026-07-21 21:32:34 +00:00
test_router_redis_init.py
test_router_retry_non_retryable_errors.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_router_retry_policy_update.py fix(proxy): tighten role gating on /get/config/callbacks response (#31745) 2026-07-01 17:58:31 -07:00
test_router_silent_experiment.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_router_streaming_fallback_metadata.py chore: litellm oss staging (#30968) 2026-06-23 07:31:44 -07:00
test_router_weighted_failover.py feat: add weighted-routing failover (#27980) 2026-05-15 17:28:54 +00:00
test_ruff_strict_gate.py perf(lint): skip and cache base gate passes, parallelize make lint, skip redundant prisma generate (#32000) 2026-07-02 19:24:00 -07:00
test_secret_redaction.py fix(key management): enforce minimum custom key length and mask short keys in key_name (#33462) 2026-07-15 18:27:38 -07:00
test_service_logger.py fix: missing span for guardrail passthrough (#29552) 2026-06-03 01:25:15 +00:00
test_setup_wizard.py
test_shared_session_integration.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_ssl_verify_unit.py Litellm OSS Staging (#29161) 2026-06-01 21:22:35 -07:00
test_stream_chunk_builder_annotations.py
test_streaming_connection_cleanup.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_system_message_format_bug.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00
test_thinking_enabled.py Litellm oss staging 250526 (#28770) 2026-05-26 11:57:39 -07:00
test_triage_rollout_heads_up.py feat(agent-shin): automated PR/issue triage, low-quality auto-close, and review-gate label lifecycle (#30433) 2026-06-17 20:42:27 -07:00
test_type_check_gate.py perf(lint): skip and cache base gate passes, parallelize make lint, skip redundant prisma generate (#32000) 2026-07-02 19:24:00 -07:00
test_type_discipline_gate.py refactor(lint): collapse type/lint budgets to a single per-rule limit (#31883) 2026-07-01 18:12:35 +03:00
test_utils.py fix(cost_tracking): map cache_write_tokens on Responses API usage path 2026-07-23 19:07:08 -07:00
test_utils_module_docstring.py Add utils module docstring 2026-05-06 00:42:49 +00:00
test_uuid_helper.py
test_vcr_safe_body_matcher.py test: stabilize batch VCR coverage and stop live upload/network leaks (#29477) 2026-06-02 16:11:52 -07:00
test_video_generation.py fix(vertex-ai): use DB credentials in video handlers + implement Veo video edit (#29098) 2026-05-28 11:45:41 -07:00
test_xai_grok_4_3_model_metadata.py feat(xai): add grok-4.3 and grok-4.3-latest to model_prices_and_conte… (#27154) 2026-05-07 09:06:56 -07:00
test_xai_responses_auto_routing.py style: run black formatter on files from main merge 2026-04-17 13:02:59 -07:00

Testing for litellm/

This directory 1:1 maps the the litellm/ directory, and can only contain mocked tests.

The point of this is to:

  1. Increase test coverage of litellm/
  2. 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.py maps to litellm/proxy/caching_routes.py
  • test_<filename>.py maps to litellm/<filename>.py