litellm/tests/unit/test_deepseek_model_metadata.py
yuneng-jiang f6882246d4
test: move tests/test_litellm root and small trees into tests/unit (#43186)
* ci: run the unit_selection.sh shard files on every event instead of only fork pull requests

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* ci: rename fork-flag to unit-flag now that it applies on every event

* test: move tests/test_litellm root and small trees into tests/unit

Pure renames, no content changes. Follow-up commits in this PR fix
references, merge the three files that already existed in tests/unit,
keep live-provider tests in tests/test_litellm and wire CI.

* test: carry tests/test_litellm conftest isolation into tests/unit

Callback lists, routing fallbacks, cached HTTP clients, logger state, AWS,
proxy-URL and keychain env, and session-end client cleanup now reset for
unit tests too. The environment isolation owns its MonkeyPatch so a test's
own monkeypatch is undone before the model-cost teardown runs.

* test: merge, split and prune the moved root and small-tree tests

Merge batches/test_batch_utils.py and the chat_completions and messages
dispatch tests into the files that already existed in tests/unit. Keep
the live Gemini interactions tests, the async image-fetch format test and
the OpenAI embedding scorer test in tests/test_litellm since they need
real network or keys. Put test_router.py under tests/unit/test_router so
the existing package no longer shadows it. Delete eight tests the audit
found superseded by stronger ones kept in this move.

* ci: run the moved root and small-tree tests under their legacy flags

Add the misc and responses-caching-types flags to unit_selection.sh and
CircleCI, extend enterprise-routing and mcp-integration, and point the
legacy GHA shards, Makefile, redis-compat workflow, merge smoke manifest
and change classifier at the new paths.

* test: make the new tests/unit directories packages

tests/unit/test_package_layout.py requires every directory to carry an
__init__.py, and without one the moved and retained
test_litellm_responses_bridge.py modules collide on import.

* test: scope the unit socket block to tests/unit in shared sessions

The GHA shards collect the legacy test-path and the unit selection in one
pytest session. The unit conftest's loopback-only block leaked into legacy
modules that reach the network at import. The legacy conftest now lifts the
restriction at collect and setup time, and the unit conftest re-applies it
when collecting its own modules.

* test: give the shard-script tests their own GITHUB_OUTPUT

They only passed where the runner set it. The CircleCI unit job's env
allowlist drops it, so the script's redirect failed there.

* test: point the router and module-deletion checks at tests/unit

router_code_coverage and code_qa_check_tests only searched tests/test_litellm,
so the moved router tests no longer counted. The two silent-experiment tests
the audit deleted were the only direct callers of those methods; they are
replaced with tests that assert the forwarded shadow request and the
recursion guard.

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-25 11:30:43 -07:00

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"""
Regression tests for #20885 – ``supports_response_schema`` (and related
capability flags) must be consistent between the bare model-name entry
(e.g. ``deepseek-chat``) and the provider-prefixed entry
(e.g. ``deepseek/deepseek-chat``) in the model-cost map.
The bug caused ``supports_response_schema("deepseek/deepseek-chat")`` to
return ``False`` even though the canonical ``deepseek-chat`` entry has the
field set to ``True``.
"""
import json
import os
import litellm
from litellm.utils import (
_supports_factory,
)
# ---------------------------------------------------------------------------
# Data-level tests – verify the JSON files are in sync
# ---------------------------------------------------------------------------
def _load_backup_json() -> dict:
"""Load the backup JSON directly from disk."""
backup_path = os.path.join(
os.path.dirname(litellm.__file__),
"model_prices_and_context_window_backup.json",
)
with open(backup_path, encoding="utf-8") as f:
return json.load(f)
class TestDeepSeekModelCostEntries:
"""Verify that provider-prefixed DeepSeek entries contain the same
capability flags as their bare-name counterparts in the JSON files."""
def test_deepseek_chat_max_input_tokens_matches_bare_in_backup(self):
data = _load_backup_json()
bare = data.get("deepseek-chat", {})
prefixed = data.get("deepseek/deepseek-chat", {})
assert prefixed.get("max_input_tokens") == bare.get("max_input_tokens")
def test_deepseek_reasoner_max_output_tokens_matches_bare_in_backup(self):
data = _load_backup_json()
bare = data.get("deepseek-reasoner", {})
prefixed = data.get("deepseek/deepseek-reasoner", {})
assert prefixed.get("max_output_tokens") == bare.get("max_output_tokens")
# ---------------------------------------------------------------------------
# API-level tests – verify supports_response_schema returns True
# ---------------------------------------------------------------------------
class TestSupportsResponseSchemaDeepSeek:
"""All calling conventions for DeepSeek should return True for
``supports_response_schema``."""
# ---------------------------------------------------------------------------
# Fallback-logic test – bare model entry used when prefixed is incomplete
# ---------------------------------------------------------------------------
class TestBareModelFallback:
"""When a provider-prefixed entry is missing a capability flag, the
``_supports_factory`` fallback should consult the bare model-name
entry in ``litellm.model_cost``."""
def test_fallback_uses_bare_entry(self):
"""Temporarily remove ``supports_response_schema`` from the prefixed
entry and verify the fallback still returns True."""
key = "deepseek/deepseek-chat"
original = litellm.model_cost.get(key, {}).get("supports_response_schema")
try:
# Simulate the pre-fix state: field missing from prefixed entry
if key in litellm.model_cost:
litellm.model_cost[key].pop("supports_response_schema", None)
result = _supports_factory(
model="deepseek-chat",
custom_llm_provider="deepseek",
key="supports_response_schema",
)
assert result is True
finally:
# Restore
if key in litellm.model_cost and original is not None:
litellm.model_cost[key]["supports_response_schema"] = original
def test_no_fallback_when_explicitly_false(self):
"""If the prefixed entry explicitly sets a capability to ``False``,
the fallback must NOT override it."""
key = "deepseek/deepseek-reasoner"
# After the data fix, deepseek/deepseek-reasoner has
# supports_function_calling=false (matching the bare entry).
# Explicitly set it to False to test the guard.
original = litellm.model_cost.get(key, {}).get("supports_function_calling")
try:
if key in litellm.model_cost:
litellm.model_cost[key]["supports_function_calling"] = False
result = _supports_factory(
model="deepseek-reasoner",
custom_llm_provider="deepseek",
key="supports_function_calling",
)
assert result is False
finally:
if key in litellm.model_cost and original is not None:
litellm.model_cost[key]["supports_function_calling"] = original