litellm/tests
Alexander Chernov 95e321cc75
fix(zai): translate response_format into a forced tool call
ZAIChatConfig.get_supported_openai_params omitted response_format, so litellm either raised
UnsupportedParamsError or, under drop_params, dropped the schema and returned HTTP 200 with prose.
The silent variant is the damaging one: the failure only surfaces in a downstream JSON parser.

GLM ignores response_format upstream but does honour a forced tool call, which is what
BaseConfig._add_response_format_to_tools already builds for azure and fireworks_ai. Wiring zai into
it is not enough on its own: that helper sets the internal json_mode flag, and zai reaches the
OpenAI SDK handler, which passed the flag straight through to Completions.create() as an unexpected
keyword argument. azure solved the same problem by popping json_mode and threading
convert_tool_call_to_json_mode into its response conversion, so openai.py now does the same and the
tool call is unwrapped back into message.content.

The translation is skipped when it could not be unwrapped again: streaming responses, and requests
that already carry caller-supplied tools, where forcing json_tool_call would hijack them. In both
cases response_format is left to pass through as before.

Also stops _add_response_format_to_tools mutating the caller's tools list. _map_openai_params
aliases that list into optional_params, so the previous setdefault plus append wrote into the list
the caller passed to completion(), accumulating a duplicate json_tool_call on every turn of an
agent loop. azure and fireworks_ai were exposed to this too.

Fixes: BerriAI/litellm#37720
Signed-off-by: Alexander Chernov <alexander@chernov.it>
2026-08-21 00:22:44 +01:00
..
agent_tests test: repair stale CircleCI contracts 2026-08-08 12:19:29 -07:00
audio_tests test: remove tests that never execute 2026-08-12 10:45:38 -07:00
base_sdk_tests test(cli): cover the keyless token record and keep keyring to the cli extra 2026-08-20 03:45:00 -07:00
basic_proxy_startup_tests
batches_tests test: build redaction and batch limiter fixtures the way production does (#37416) 2026-08-18 19:37:50 -07:00
benchmarks
code_coverage_tests test: run the 30 test files stranded in the second mirror (#37595) 2026-08-20 10:59:43 -07:00
documentation_tests ci: lint the test tree for undefined names and fix all 30 (#37671) 2026-08-20 13:30:34 -07:00
e2e test: add six ruff rules that catch tests which cannot fail (#37709) 2026-08-20 14:21:26 -07:00
enterprise Merge pull request #37198 from BerriAI/litellm_lit5660_batches_limit_400 2026-08-17 15:53:46 -07:00
guardrails_tests fix(guardrails): honor configured timeout in Zscaler AI Guard (#36110) 2026-08-07 00:25:52 +00:00
image_gen_tests test: point the live gemini and groq conformance suites at models that still exist (#37422) 2026-08-19 02:50:46 +00:00
integration
litellm/proxy/_experimental/mcp_server test: merge three stranded twins into the files that shadow them (#37600) 2026-08-20 14:25:23 -07:00
litellm-proxy-extras test: remove tests that never execute 2026-08-12 10:45:38 -07:00
litellm_utils_tests test: add six ruff rules that catch tests which cannot fail (#37709) 2026-08-20 14:21:26 -07:00
llm_responses_api_testing test: refresh three suites that drifted from the code they cover 2026-08-15 15:37:09 -07:00
llm_translation test: add six ruff rules that catch tests which cannot fail (#37709) 2026-08-20 14:21:26 -07:00
load_tests
local_testing test: add six ruff rules that catch tests which cannot fail (#37709) 2026-08-20 14:21:26 -07:00
logging_callback_tests test: add six ruff rules that catch tests which cannot fail (#37709) 2026-08-20 14:21:26 -07:00
mcp_tests test: add six ruff rules that catch tests which cannot fail (#37709) 2026-08-20 14:21:26 -07:00
multi_instance_e2e_tests
ocr_tests test(ocr): update Azure DI supported-params assertion for req_format 2026-08-18 19:21:46 -07:00
openai_endpoints_tests fix(batches): register managed output files on batch cancel 2026-08-05 18:28:52 -07:00
otel_tests
pass_through_tests
pass_through_unit_tests test: allow protocol-constrained pass-through routes to declare fewer methods (#37415) 2026-08-18 19:38:05 -07:00
proxy_admin_ui_tests fix(access groups): sync assigned_team_ids from the team write paths (#36825) 2026-08-14 04:45:36 +00:00
proxy_behavior feat(proxy): add /team/daily/activity/aggregated and switch the Usage team tab to it (#36562) 2026-08-18 11:29:57 -07:00
proxy_e2e_anthropic_messages_tests ci: lint the test tree for undefined names and fix all 30 (#37671) 2026-08-20 13:30:34 -07:00
proxy_migration_tests test(docker): gate the componentized gateway and backend images on an arbitrary-uid offline boot (#36136) 2026-08-07 09:57:37 -07:00
proxy_security_tests
proxy_unit_tests ci: lint the test tree for undefined names and fix all 30 (#37671) 2026-08-20 13:30:34 -07:00
router_unit_tests feat(complexity_router): custom classifier plugins via classifier_type 'custom' (#37249) 2026-08-18 14:09:19 -07:00
search_tests Merge remote-tracking branch 'origin/litellm_internal_staging' into litellm_pr32448_tinyfish_headers 2026-08-18 13:03:33 -07:00
spend_tracking_tests
store_model_in_db_tests test: refresh three suites that drifted from the code they cover 2026-08-15 15:37:09 -07:00
test_litellm fix(zai): translate response_format into a forced tool call 2026-08-21 00:22:44 +01:00
unified_google_tests
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
_vcr_conftest_common.py
_vcr_redis_persister.py
_wait_helpers.py test: replace blind sleeps with deadline waits in callback and caching tests (#37660) 2026-08-20 18:48:43 +00:00
_ws_vcr.py
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 ci: lint the test tree for undefined names and fix all 30 (#37671) 2026-08-20 13:30:34 -07:00
test_fallbacks.py
test_gpt5_azure_temperature_support.py
test_health.py
test_keys.py
test_litellm_proxy_responses_config.py
test_logging.conf
test_models.py
test_new_vector_store_endpoints.py
test_openai_endpoints.py test: refresh three suites that drifted from the code they cover 2026-08-15 15:37:09 -07:00
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_service_logger_otel.py
test_spend_logs.py
test_team.py test: add six ruff rules that catch tests which cannot fail (#37709) 2026-08-20 14:21:26 -07:00
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.