litellm/tests
devin-ai-integration[bot] d46304900f
fix(router): stream /v1/messages lifecycle frames live when no fallback can take over (#43600)
* fix(router): stream anthropic messages lifecycle frames live when no fallback can take over

The /v1/messages streaming wrapper buffered message_start and
content_block_start until the first content_block_delta and dropped
pings behind buffered frames unconditionally, even for requests no
fallback could ever recover. With adaptive thinking on Bedrock or
Vertex the client saw no bytes for the whole thinking pass and hit
read timeouts.

Buffering now applies only while a fallback can still take over
(generic or refusal chain resolving), and a ping is always forwarded
live since it carries no lifecycle and keeps the connection alive.

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix(router): mirror every dispatcher fallback path in the anthropic stream gate

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix(router): skip already-tried order levels in the anthropic stream gate

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix(router): keep a transport-split ping behind buffered lifecycle frames instead of forwarding its head live

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* chore(router): credit the #39566 branch this fix supersedes

Co-authored-by: Radu Swigler <radu.porumba@gmail.com>
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

---------

Co-authored-by: mateo <mateo@berri.ai>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: yassin <yassin@berri.ai>
Co-authored-by: Radu Swigler <radu.porumba@gmail.com>
2026-09-29 09:22:05 -07:00
..
_support fix(params): validate stream_chunk_size once, before any provider call (#43222) 2026-09-26 23:01:20 +00:00
agent_tests
audio_tests
base_sdk_tests fix(mcp): explain missing public client dependencies 2026-09-19 19:52:13 -07:00
basic_proxy_startup_tests
batches_tests
benchmarks feat(tokenizer): preserve Python defaults with opt-in Rust dispatch (#42174) 2026-09-22 04:41:11 +00:00
code_coverage_tests revert: "feat(usage): search team keys beyond the top-N in the Team usage view (#42857)" (#43377) 2026-09-28 21:47:46 +00:00
documentation_tests fix(s3_v2): upload fresh events first, drop terminal failures and hour-old retries by default, opt-in adaptive concurrency (#43022) 2026-09-26 14:58:28 -07:00
e2e fix(ui): rename All Models tab to Deployed Models and model filters to All Proxy Models (#43638) 2026-09-28 17:59:47 -07:00
guardrails_tests Revert "Merge pull request #41220 from BerriAI/litellm_post_call_guardrail_context" 2026-09-19 17:45:15 +00:00
image_gen_tests fix(logging): pass provider response headers to callbacks on every endpoint (#42824) 2026-09-24 13:01:12 -07:00
integration fix(router): stream /v1/messages lifecycle frames live when no fallback can take over (#43600) 2026-09-29 09:22:05 -07:00
litellm_utils_tests fix(ci): stop stale CI reds, keep unit tests off the host env, retry CyberArk policy conflicts (#43294) 2026-09-26 09:25:13 -07:00
llm_responses_api_testing test: move tests/test_litellm core utils, routing, responses, caching and rust_bridge into tests/unit (#43199) 2026-09-25 17:10:13 -07:00
llm_translation fix(tests): stop VCR recording and replaying a test's own localhost upstream (#43346) 2026-09-26 15:49:39 -07:00
load_tests
local_testing test: remove substring guard test_default_api_base (#43355) 2026-09-26 22:28:28 +00:00
logging_callback_tests test(logging): drain the logging worker after each logging callback test so no later test inherits its events (#43344) 2026-09-26 14:08:26 -07:00
mcp_tests ci: move provider-independent MCP tests into tests/unit and run mcp-integration from litellm-tests (#42904) 2026-09-24 23:07:48 +00:00
multi_instance_e2e_tests
ocr_tests refactor(ocr): remove the Python OCR execution path and require the Rust route (#43081) 2026-09-24 18:18:50 -07:00
openai_endpoints_tests
otel_tests test: fix stale budget-status and bad-database-url assertions 2026-09-21 15:00:54 -07:00
pass_through_tests fix(mcp): preserve legacy behavior on SDK2 and streamline verification 2026-09-18 22:28:31 -07:00
pass_through_unit_tests refactor(anthropic): rename experimental_pass_through to pass_through (#43329) 2026-09-26 13:00:50 -07:00
proxy_admin_ui_tests
proxy_behavior revert: "feat(usage): search team keys beyond the top-N in the Team usage view (#42857)" (#43377) 2026-09-28 21:47:46 +00:00
proxy_e2e_anthropic_messages_tests fix(test): run the all-beta-headers bedrock cases on Claude Fable 5.1 2026-09-19 23:33:29 +00:00
proxy_migration_tests test: count a zombie grandchild as gone in the migrate deploy timeout test (#42570) 2026-09-22 14:59:26 -07:00
proxy_security_tests refactor(proxy): rename the local development override to dangerously_permit_weak_or_unset_master_key so the name says exactly what it permits 2026-09-19 18:53:14 -07:00
proxy_unit_tests ci: move tests/proxy_unit_tests to tests/unit/proxy and run the proxy-db shards from litellm-tests (#42903) 2026-09-24 22:59:11 +00:00
router_unit_tests fix(ci): stop stale CI reds, keep unit tests off the host env, retry CyberArk policy conflicts (#43294) 2026-09-26 09:25:13 -07:00
rust-python-harness refactor(ocr): remove the Python OCR execution path and require the Rust route (#43081) 2026-09-24 18:18:50 -07:00
search_tests fix(cost-map): retirement dates, chatgpt reasoning flags, bing pricing, bedrock mantle and mythos, azure gpt-5.6 alias, anthropic batch rates, new nebius, openrouter and xai rows (#42951) 2026-09-25 19:12:36 -07:00
spend_tracking_tests
store_model_in_db_tests test(integration): port langfuse callbacks-in-db coverage to the local harness (#43282) 2026-09-25 21:54:11 -07:00
test_litellm refactor: clean up fresh tech debt from 2026-09-28 (#43674) 2026-09-29 02:15:12 -07:00
test_litellm_rust feat(cache): select Rust caching through explicit cache objects (#43601) 2026-09-29 00:01:44 +00:00
unified_google_tests test(google_genai): move unified_google_tests to gemini-3.5-flash-lite (#42520) 2026-09-22 13:07:37 -07:00
unit fix(router): stream /v1/messages lifecycle frames live when no fallback can take over (#43600) 2026-09-29 09:22:05 -07:00
vector_store_tests
windows_tests ci: cut CircleCI wall time without loosening test isolation (#43347) 2026-09-26 15:34:53 -07:00
__init__.py
_fake_openai_endpoint_server.py
_flush_vcr_cache.py
_live_test_helpers.py
_openai_record_replay_proxy.py
_process_helpers.py test: count a zombie grandchild as gone in the migrate deploy timeout test (#42570) 2026-09-22 14:59:26 -07:00
_vcr_conftest_common.py fix(tests): stop VCR recording and replaying a test's own localhost upstream (#43346) 2026-09-26 15:49:39 -07:00
_vcr_redis_persister.py
_wait_helpers.py
_ws_vcr.py
AGENTS.md ci(tests): wire tests/unit into CircleCI and drain legacy unit shards green 2026-09-20 07:05:42 +00:00
capturing_transport.py test(vcr): guard leaked cassette patches and make injected-transport embedding tests immune (#42542) 2026-09-22 14:20:18 -07:00
eval_swe_bench.py
fake_openai_endpoint.py
gettysburg.wav
large_text.py
openai_batch_completions.jsonl
pyrightconfig.json
README.MD test: finish the non-proxy half of tests/test_litellm (#43281) 2026-09-25 22:43:41 -07:00
test_anthropic_compaction_usage.py
test_budget_management.py
test_callbacks_on_proxy.py
test_debug_warning.py
test_default_encoding_non_root.py
test_end_users.py
test_fallbacks.py
test_gpt5_azure_temperature_support.py
test_health.py
test_keys.py fix(proxy): authorize key model aliases the same way as team aliases (#43049) 2026-09-24 19:51:02 -07:00
test_litellm_proxy_responses_config.py
test_logging.conf
test_models.py
test_new_vector_store_endpoints.py
test_openai_endpoints.py
test_organizations.py
test_otel_thread_leak.py
test_presidio_latency.py
test_proxy_server_non_root.py
test_ratelimit.py
test_resource_cleanup.py
test_rust_python_harness.py test: fix stale and state-leaking tests red on scheduled CircleCI (#43266) 2026-09-25 19:10:20 -07:00
test_service_logger_otel.py
test_spend_logs.py
test_team.py
test_team_logging.py
test_team_members.py
test_users.py
white_100x100.png test: stop CI tests from downloading tokenizer files and images (#43257) 2026-09-25 19:27:48 -07:00

In total litellm runs 1000+ tests

[02/20/2025] Update:

To make it easier to contribute and map what behavior is tested,

we've started mapping the litellm directory in tests/unit

This folder can only run mock tests.