litellm/tests
devin-ai-integration[bot] abd3af422d
fix(caching): never store or serve a chat completion with no choices (#44709)
* fix(caching): never store or serve a chat completion with no choices

A provider response with empty choices was written to the response cache and served on every identical request until the TTL ended, with no provider call in between. The cache now skips storing such a response and treats an already stored one as a miss, so the next request goes back to the provider and its answer replaces the entry.

* fix(caching): skip responses with no output on the Responses API and Anthropic Messages too

* fix(caching): skip streams and stored entries that carry no output

A chat or text completion stream whose chunks carried no choice is closed
by the stream wrapper with one empty choice of its own, so the assembled
response passed the choices check and was cached. The assembled stream is
now judged on its content: a stream with no text, tool call, or other
output in any choice is never stored, on the async and sync writers alike.
The Responses API stream writer and the Anthropic Messages stream writer
apply the same no-output check before storing.

A stored entry with no output read through the worker memory tier is now
evicted from that tier on the miss, so the next read reaches Redis where
the refill lands; the text completion and messages writers only write to
Redis, and the memory copy otherwise kept missing until its own TTL.

* test(integration): response cache cells for answers without output

Deterministic cells for the response cache on every unified endpoint,
streamed and not, through the OpenAI and Anthropic SDKs and raw httpx,
plus the sync SDK paths, stale entries, malformed answers, per-request
TTLs, cache delete, and chaos (Redis stopped or paused mid burst, a
worker killed, in-memory cache mode). The scripted upstream counts only
POSTs as deployment calls, since the proxy's boot-time GET /v1/models
discovery of a config deployment is not one.

* test(caching): pin the stored entry timestamp in the worker-copy test

* test(integration): drop the restating comments from the chaos cells

* test(integration): close the breaker on the first call after the Redis restart

---------

Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
2026-10-06 20:07:30 +00:00
..
_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 test: remove 130 legacy tests owned by stronger unit proofs (#44157) 2026-10-02 10:18:50 -07:00
base_sdk_tests fix(mcp): explain missing public client dependencies 2026-09-19 19:52:13 -07:00
basic_proxy_startup_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
batches_tests test(e2e): move live-provider legacy tests into tests/e2e (#44120) 2026-10-02 00:02:18 -07:00
benchmarks feat(tokenizer): preserve Python defaults with opt-in Rust dispatch (#42174) 2026-09-22 04:41:11 +00:00
code_coverage_tests fix(ci): skip the generated dashboard bundle in the master key guard (#44890) 2026-10-06 18:15:09 +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(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
guardrails_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
harness_e2e feat: add litellm.agent() to run claude code, codex, opencode and deep agents through the ai gateway (#43885) 2026-10-01 22:27:49 +00:00
image_gen_tests test: remove 130 legacy tests owned by stronger unit proofs (#44157) 2026-10-02 10:18:50 -07:00
integration fix(caching): never store or serve a chat completion with no choices (#44709) 2026-10-06 20:07:30 +00:00
litellm_utils_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
llm_responses_api_testing test: remove 130 legacy tests owned by stronger unit proofs (#44157) 2026-10-02 10:18:50 -07:00
llm_translation fix(lens): price agent traces by joining gen_ai.response.id to spend logs (#44738) 2026-10-06 19:55:26 +00:00
load_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
local_testing fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
logging_callback_tests test(ci): pin the ROI estimator flag and the prompt-cache counter in two drifted tests (#44499) 2026-10-04 08:40:23 -07:00
mcp_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
multi_instance_e2e_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
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 fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
otel_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
pass_through_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
pass_through_unit_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
proxy_admin_ui_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
proxy_behavior fix(lens): reuse trace reviews and consolidate findings across runs (#44778) 2026-10-06 12:09:56 -07:00
proxy_e2e_anthropic_messages_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
proxy_migration_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
proxy_security_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
proxy_unit_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
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 test(integration): move legacy proxy, router and Redis tests into tests/integration (#44128) 2026-10-01 23:00:54 -07:00
store_model_in_db_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_litellm fix(lens): price agent traces by joining gen_ai.response.id to spend logs (#44738) 2026-10-06 19:55:26 +00:00
test_litellm_rust refactor(cache): remove dead Cache._native_cache runtime path (#44785) 2026-10-05 20:58:19 -07:00
unified_google_tests fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
unit fix(caching): never store or serve a chat completion with no choices (#44709) 2026-10-06 20:07:30 +00:00
vector_store_tests
windows_tests fix(packaging): keep wheel paths under Windows MAX_PATH for Store Python (#43903) 2026-09-30 22:20:36 +00:00
__init__.py
_fake_openai_endpoint_server.py
_flush_vcr_cache.py
_live_test_helpers.py
_master_key.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
_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 fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_callbacks_on_proxy.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_debug_warning.py
test_default_encoding_non_root.py
test_end_users.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_fallbacks.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_gpt5_azure_temperature_support.py
test_health.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_keys.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_litellm_proxy_responses_config.py
test_logging.conf
test_models.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_new_vector_store_endpoints.py
test_openai_endpoints.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_otel_thread_leak.py
test_presidio_latency.py
test_proxy_server_non_root.py
test_ratelimit.py test(proxy): delete the legacy proxy test tree and shard tests/unit/proxy by glob (#44018) 2026-10-01 11:40:45 -07:00
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 fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_team.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_team_logging.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_team_members.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
test_users.py fix(security): remove the publicly known master key from the repo (#44718) 2026-10-06 10:55:24 -07:00
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.