litellm/tests
quietjules d037d86a94
fix(token_counter)!: keep a loaded Hugging Face tokenizer when a slower download fails (#48916)
* fix(utils): keep a loaded Hugging Face tokenizer over a racing failure and retry once per window

A download that fails after another count loaded the same tokenizer no longer hides it, the first count after the retry window claims the retry while the others keep using tiktoken, and HUGGINGFACE_TOKENIZER_LOAD_RETRY_SECONDS defaults to 60s to match the proxy's tokenizer reuse window

* fix(utils): keep Hugging Face tokenizer outcomes until their retry time instead of a TTL

The outcome store no longer expires entries after twice the retry window, so after a long idle stretch the first count still claims the one retry and the other counts keep using tiktoken instead of each downloading again. The store is a small lock-guarded holder of an immutable mapping keyed by tokenizer kind and backend

* fix(token_counter): keep the loaded tokenizer in its outcome and run one retry at a time

The loaded outcome now holds the tokenizer, so an LRU eviction can no longer
send every count back to an unguarded download. A retry blocks further retries
until it ends, even when it runs past the window, and a download that fails
after another count loaded the tokenizer counts with that tokenizer

* fix(token_counter): retry a failed Hugging Face tokenizer download in the background

After the retry window, the count that finds the stored failure starts one
background download and answers with tiktoken, so no live count waits on a
retry. A failure from a download that started before the first failure no
longer resets a running retry, and a failed retry never replaces a tokenizer
another download loaded. The outcome store takes its clock and retry starter
as dependencies, so the tests inject them instead of patching time.monotonic.

* fix(token_counter): keep retrying a failed Hugging Face tokenizer download when its retry thread cannot start

If starting the background retry thread raises, the count answers with tiktoken and the failure is stored with a fresh retry time, so the next window retries again instead of the tokenizer staying on tiktoken until restart.

* fix(token_counter): let a forked process or a crashed retry thread retry a failed Hugging Face tokenizer download again

A failed download's in-flight retry mark is now the pid of the process running it, so a process forked during a retry starts its own instead of waiting on a thread it does not have. The retry thread clears its mark in a finally, so a native panic or fork guard error escaping it leaves the next window free to retry. The fork guard error is no longer swallowed in the retry thread and reaches the thread's exception hook, as on the first load

* fix(token_counter): let a process that exits during a background tokenizer retry exit cleanly instead of aborting

---------

Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
2026-10-29 03:50:58 -07:00
..
_support fix(proxy)!: end a chat completions stream with an error event when a guardrail blocks mid-stream (#46953) 2026-10-17 18:00:12 -07:00
audio_tests feat(vertex-ai)!: support gemini 3.1 flash tts (#31915) 2026-10-21 04:18:42 +00:00
base_sdk_tests refactor(rust-bridge): require the native extension (#48852) 2026-10-28 13:16:56 -07:00
benchmarks test(json_fragment_accumulator): assert peak allocation instead of a drain timing ratio (#43370) 2026-10-28 22:04:47 -07:00
code_coverage_tests feat(responses): support Codex client tool_search on Anthropic and other bridged providers (#48972) 2026-10-29 00:29:40 -07:00
documentation_tests fix(proxy): let configured pass-through endpoints outrank built-in provider prefix routes (#44133) 2026-10-10 12:26:17 -07:00
e2e feat(responses): support Codex client tool_search on Anthropic and other bridged providers (#48972) 2026-10-29 00:29:40 -07:00
e2e_harness test(perf): ramp the load cases until the pod stops keeping up and floor sustained_rps (#47758) 2026-10-20 22:31:08 -07:00
fixtures test: migrate tests/llm_translation into unit, integration and e2e tiers (#45759) 2026-10-11 07:58:53 +00:00
harness_e2e fix(harness): set PWD to the working directory of local sandbox commands (#47530) 2026-10-20 20:06:11 +00:00
integration feat(proxy): let a Claude Code gateway user choose the session team (#49001) 2026-10-29 03:47:27 -07:00
rust-python-harness feat(rust): encode LiteLLM response ids on native responses (#46572) 2026-10-18 20:52:34 -07:00
test_litellm_rust fix(anthropic): drop the non-spec custom object from /v1/messages tool definitions (#48893) 2026-10-29 03:36:20 -07:00
typing fix: support OpenAI SDK 3 while retaining SDK 2 compatibility (#44927) 2026-10-09 19:45:50 -07:00
unit fix(token_counter)!: keep a loaded Hugging Face tokenizer when a slower download fails (#48916) 2026-10-29 03:50:58 -07:00
windows_tests refactor(rust-bridge): require the native extension (#48852) 2026-10-28 13:16:56 -07:00
__init__.py refactor: expose core private helpers under public names (#44871) 2026-10-07 00:05:27 +00:00
_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 test: migrate tests/llm_translation into unit, integration and e2e tiers (#45759) 2026-10-11 07:58:53 +00:00
_vcr_redis_persister.py
_wait_helpers.py
_ws_vcr.py
AGENTS.md docs(agents): ban semicolons and colons in human-facing text (#45684) 2026-10-09 16:36:32 -07:00
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_logging.conf
test_rust_python_harness.py test: move 76 live top-level tests to offline unit and integration coverage (#45352) 2026-10-08 10:33:35 -07:00
VCR_TESTING.md test: migrate tests/llm_translation into unit, integration and e2e tiers (#45759) 2026-10-11 07:58:53 +00:00
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.