litellm/tests/unit/test_router
Aidan Singh b97fcf1af0
fix(router): let affinity pins yield to deployments that already failed this request (#32309)
* fix(router): apply weighted-failover exclusion before deployment-affinity callback

* fix(router): let affinity pins yield to deployments that already failed this request

Moving the weighted failover exclusion ahead of the affinity check also changed what tag, order, plugin and managed-file filters saw. Restore the original filter order and have the affinity check ignore session and API key pins that point at a deployment already excluded or retry-skipped in this request. previous_response_id pins still win.

* fix(router): release affinity pins on deployments that failed this request

Delete a session or API key pin whose deployment already failed the request, so
the deployment that serves it claims the pin. Prompt caching pins skip failed
deployments too, and the proxy strips the internal failed-id fields from client
bodies.

* fix(router): keep affinity pins in place and skip failed origins in encrypted content affinity

A pin now only yields for the request whose pinned deployment failed. Deleting it moved pins after one 429 or a request-caused 400 and added a Redis call on the routing path. Encrypted content affinity also ignores deployments that failed this request, so a failed origin takes the strip-and-dispatch path.

* fix(router): keep encrypted reasoning when a retry can only go back to its origin

The encrypted content check now drops failed deployments the way the router does: a weighted failover exclusion always holds, and a retry skip that would leave nothing falls back to the whole group. The proxy also drops client-sent metadata._failover_excluded_ids, and the encrypted content tests use a real Router

* fix(router): keep encrypted reasoning when previous_response_id binds the failed origin

---------

Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
2026-10-28 03:24:26 -07:00
..
__init__.py test: add __init__.py to every tests/unit directory phase 16 touches 2026-09-20 11:52:38 +00:00
test_enforce_model_rate_limits.py
test_io_token_rate_limits.py
test_router.py fix(router): let affinity pins yield to deployments that already failed this request (#32309) 2026-10-28 03:24:26 -07:00
test_router_callback_hook_sequence.py test: replace 61 live logging and otel tests with offline unit and integration coverage (#45362) 2026-10-08 15:55:57 -07:00
test_router_endpoints.py fix(vector-stores): keep proxy context out of provider vector store metadata (#47021) 2026-10-17 12:51:47 -07:00
test_router_fallbacks.py test: move routing, caching and callback tests out of local_testing (#45761) 2026-10-10 09:33:09 -07:00
test_router_get_deployments.py fix(count_tokens): apply context_management edits in the Gemini /v1/messages/count_tokens count (#46843) 2026-10-16 17:53:06 +00:00
test_router_helper_utils.py fix(router): unregister strategy selectors from global callbacks on discard (#45795) 2026-10-21 02:39:36 +00:00
test_router_max_parallel_requests.py test: move routing, caching and callback tests out of local_testing (#45761) 2026-10-10 09:33:09 -07:00
test_router_provider_endpoints.py fix(videos)!: keep model_id in proxy video ids so per-model keys resolve on status/content (#44614) 2026-10-20 05:42:59 +00:00
test_router_retries.py test: move routing, caching and callback tests out of local_testing (#45761) 2026-10-10 09:33:09 -07:00
test_router_timeout.py feat(router): let a deployment set a timeout per service_tier (#47406) 2026-10-19 14:27:29 -07:00
test_router_vector_store_endpoints.py test: migrate SDK and proxy-booting legacy CircleCI tests to their tiers (#45758) 2026-10-11 00:17:21 -07:00