* test(e2e): harden harness and tests against data-plane pod churn
A stage autoscaler scale-down produced a 2s window of ALB 502s that killed six
budget tests on their first management call, and a freshly scaled-up pod that
had not run its 30s DB object sync yet failed two MCP tests and one prometheus
cardinality test. Retry transient gateway errors (502/503/504, connection
errors) once at the shared e2e_http dispatch seam, poll MCP server registration
to the poll deadline instead of asserting a single-shot listing, anchor the MCP
guardrail full-sync wait to the later of the guardrail and server writes, and
turn the prometheus alias poll into a drive-and-scrape convergence loop that
re-sends traffic for missing aliases and unions results across scrapes
* test(e2e): drain request body in retry stub handler so keep-alive reuse cannot misparse leftovers as requests
* revert(e2e): drop the transient-502 retry seam
A raw 502 during a pod scale-down is what a real client sees, so the suite
retrying past it hides an availability gap instead of flagging it. The
gateway-side fix is graceful drain on the deployment; until then the failures
are signal
* test(e2e): cap per-alias driver re-drives in the prometheus cardinality poll
Bounds worst-case provider spend to 4 completions per alias while scrapes keep
polling to the deadline; counters persist on whichever pod served them, so the
cap costs no convergence unless that pod dies
* test(e2e): drop driver re-drives from the prometheus cardinality poll
The per-key cardinality contract is process-local and counters persist on
whichever pod served the driver call, so unioning aliases across free scrape
polls converges without re-sending billable traffic. The residual gap, a pod
dying inside the poll window, is deferred to direct per-pod scraping
The shared proxy wrapper in tests/e2e/e2e_gateway.py was misnamed: Gateway is
not a gateway server, it is the client every suite uses to talk to the proxy
(keys, models, chat/embed/ocr, spend read-backs, poll helpers). Rename the
module to proxy_client.py and the class to ProxyClient, with build_gateway
becoming build_proxy_client and the GatewayProvider protocol becoming
ProxyClientProvider. The .gateway attribute suites held is now .proxy. Only
identifiers changed; prose and string literals that use the word gateway for the
proxy-server concept were left alone.
Each suite previously built its own instance through a per-suite build_client()
that called build_gateway() inside, duplicating the proxy wiring across suites.
There is now one session-scoped proxy fixture in tests/e2e/conftest.py; every
suite's client fixture depends on it and injects it, so the wiring lives in one
place. claude_code keeps building its own client directly since it has its own
harness and does not use the shared fixtures.
Behavior is unchanged: shared transport, data-plane/control-plane split routing,
poll budget, typed request/response models, and resource cleanup all go through
the same object.
* fix(e2e): define SpendTagsResponse/TagSpend so spend suite collects
spend_tracking/spend_e2e_client.py imported SpendTagsResponse and
TagSpend from models, but neither was ever defined, so importing the
client raised ImportError and pytest aborted collection for the whole
e2e session. The tag-spend tests had never run.
Model /spend/tags as it actually answers: a bare array of per-tag
aggregates, so SpendTagsResponse is a RootModel[list[TagSpend]] like the
existing SpendLogs. spend_by_tags read a nonexistent spend_per_tag field
that also wouldn't match the array shape; it now reads .root, matching
how spend_logs consumes its RootModel.
* test(e2e): close coverage gaps across chat/responses, provider features, batches, prometheus, and langfuse eviction
Adds regression nets and gap-surfacing tests:
A1 (llm_translation/test_deepseek_reasoning_e2e.py): control case proves the
DeepSeek reasoner returns reasoning_content; two xfail(strict) cases document
that reasoning_effort='none' and thinking type='disabled' are silently dropped
(LIT-3686 / GH #27453)
A2 (llm_translation/test_chat_completions_regression_e2e.py and test_responses_e2e.py):
parametrized regression net asserting real completion content, not just a 200,
across the configured providers for /chat/completions and /responses (GH #28991)
A3 (llm_translation/test_provider_features_e2e.py): asserts service_tier is
honored and prompt-cache read tokens grow on a repeated cacheable prefix
A4 (batches/test_batches_e2e.py): mints a rate-limited key so the batch pre-call
rate limiter runs, then asserts no unattributed spend row is left behind by the
internal input-file retrieval (LIT-3266)
A5 (logging/test_prometheus_cardinality_e2e.py): drives one chat per distinct
key_alias and asserts each alias gets its own labeled series on /metrics
A6 (test_litellm/.../specialty_caches/test_dynamic_logging_cache.py): xfail(strict)
regression proving eviction must not close an httpx client still held by an
in-flight caller (LIT-3221 / GH #13034)
Extends tests/e2e/models.py with the typed request and response fields these
tests read (reasoning_effort, thinking, service_tier, key_alias, cache usage
fields, spend-log api_key)
Co-authored-by: Cursor <cursoragent@cursor.com>
* test(e2e): drop unused litellm-regression-tests submodule
The e2e suite migrated the regression cases into this repo; nothing
imports the submodule at runtime (only a provenance comment references
it), so the .gitmodules entry and gitlink pointing at a personal repo
would just make upstream CI init a submodule it never uses. Remove both
to keep the change test-only.
* test(e2e): drop A6 langfuse-eviction xfail; keep PR to live e2e coverage
The dynamic_logging_cache strict-xfail documented an unfixed shared-httpx-client
close-on-eviction bug (LIT-3221 / GH #13034). That is a non-trivial fix (thread
cleanup vs shared client teardown) and belongs in its own PR, not this e2e
coverage PR, so revert the file to its base state.
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
