litellm/tests
Refael Iliaguyev e065a2575b
fix(proxy): send a real error event when a /v1/messages stream fails (#41826)
* fix(proxy): send a real error event when a /v1/messages stream fails

When a stream failed halfway through, the proxy wrote the error as a plain
`data: {"error": ...}` line with no `event:` in front of it. Anthropic clients
pick stream events by that name, so they skip the line and the request looks
like it simply stopped with nothing in it.

Write the failure as an `event: error` frame with Anthropic's own payload, and
take the error type from the status code

* fix(proxy): use the shared Anthropic error mapping for the stream error frame

The first pass added a third copy of the status to error-type table, and it
disagreed with the documented one: 529 came out as `api_error` rather than
`overloaded_error`, and 413 as `invalid_request_error` rather than
`request_too_large`, which hides the two failures a client can actually act on.

Drop that copy and put the frame builder next to the table litellm already
keeps in anthropic_interface/exceptions. The bridged adapter path was building
the same frame inline, so it uses the shared one now too

* fix(proxy): seal a torn SSE frame before the /v1/messages error event

An upstream that drops mid-frame leaves the client inside an open event,
so the error frame that follows is glued onto the torn data line and the
Anthropic SDK raises a JSON decode error instead of an APIStatusError.
Close the open frame with a ping event the SDK skips before writing the
error event, and add the e2e stream-cut edge with Bedrock, Anthropic
boundary, and Anthropic mid-frame legs.

* fix(proxy): keep the SSE tail unchanged on a chunk that is not text

A serializer that hands a dict or model object through as-is has no bytes
the frame tail can learn from, so advance_sse_tail leaves it alone instead
of slicing it.

* fix(proxy): answer a /v1/messages stream that fails before its first byte as a JSON error carrying its status

* test: move the Anthropic error frame tests into tests/unit

* test(e2e): cut the upstream stream only after content has been relayed

* test(e2e): carry split SSE lines across chunks and always tear a data line mid-frame

* test(e2e): find the next data line across a chunk boundary before tearing it

---------

Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
2026-09-25 15:36:35 -07:00
..
_support fix(params): stop stream_chunk_size reaching provider request bodies (#42664) 2026-09-23 10:27:47 -07:00
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 fix(sentry): scrub PII and secrets inside object reprs and nested locals, add SENTRY_SEND_DEFAULT_PII opt-in (#43123) 2026-09-25 14:52:35 -07:00
documentation_tests fix(docs-test): restore line-anchored table regex in router settings check 2026-09-18 20:10:20 +00:00
e2e fix(proxy): send a real error event when a /v1/messages stream fails (#41826) 2026-09-25 15:36:35 -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 feat(mcp): configure protocol versions and capability discovery (#43169) 2026-09-25 13:13:52 -07:00
litellm_utils_tests feat(langfuse): migrate the sdk callback to langfuse v4 (#36741) 2026-09-24 23:22:56 -07:00
llm_responses_api_testing fix(responses): fall back on pre-output stream drops, fail truncated streams, honor request_timeout (#43133) 2026-09-25 14:32:41 -07:00
llm_translation test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
load_tests
local_testing test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
logging_callback_tests feat(langfuse): migrate the sdk callback to langfuse v4 (#36741) 2026-09-24 23:22:56 -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 feat(proxy): add TinyFish Agent API passthrough with per-step billing (#41099) 2026-09-21 21:21:43 -07:00
proxy_admin_ui_tests
proxy_behavior feat(proxy): server-side Team Usage export beyond the top-N key cap (#42996) 2026-09-24 15:40:36 -05:00
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(router): match provider-prefixed fallback keys for bare model groups served by wildcard deployments (#43062) 2026-09-24 18:08:56 -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 test: move tests/test_litellm/llms into tests/unit/llms (#43191) 2026-09-25 12:43:23 -07:00
spend_tracking_tests
store_model_in_db_tests test(mcp): patch create_mcp_server_if_identifier_free in the store-model-in-db MCP tests (#42916) 2026-09-24 11:59:52 -07:00
test_litellm fix(proxy): send a real error event when a /v1/messages stream fails (#41826) 2026-09-25 15:36:35 -07:00
test_litellm_rust feat(rust): hand upstream response headers to the native Messages stream (#43178) 2026-09-25 10:03:15 -07:00
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(proxy): send a real error event when a /v1/messages stream fails (#41826) 2026-09-25 15:36:35 -07:00
vector_store_tests
windows_tests
__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 test: move tests/test_litellm root and small trees into tests/unit (#43186) 2026-09-25 11:30:43 -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_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_service_logger_otel.py
test_spend_logs.py
test_team.py
test_team_logging.py
test_team_members.py
test_users.py

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/test_litellm

This folder can only run mock tests.