litellm/tests/unit/test_check_mcp_operation_boundary.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found superseded by stronger ones kept in this move.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

52 lines
2.4 KiB
Python

from pathlib import Path
import pytest
from scripts.check_mcp_operation_boundary import main, violations
@pytest.mark.parametrize(
"source",
(
"from mcp.server.auth.middleware.auth_context import auth_context_var as hidden",
"from litellm.proxy._experimental.mcp_server.mcp_context import _mcp_proxy_mode as mode",
"caller = legacy.get_active_auth_context()",
"owners = transport._stateful_session_owners",
"from weakref import WeakKeyDictionary",
"from litellm.proxy._experimental.mcp_server.server import get_auth_context",
),
)
def test_shared_operation_boundary_rejects_ambient_state(source):
assert violations(Path("operations.py"), source)
def test_legacy_adapter_may_resolve_context_but_policy_must_receive_it():
source = "from litellm.proxy._experimental.mcp_server.mcp_context import _mcp_proxy_mode"
assert violations(Path("server.py"), source) == ()
assert violations(Path("legacy_callbacks.py"), source) == ()
assert violations(Path("operations.py"), "def execute(context):\n return context.client_ip") == ()
assert violations(Path("mcp_server_manager.py"), "def _mcp_registry_key(server):\n return server.name") == ()
def test_boundary_command_rejects_shared_state_and_accepts_explicit_context(tmp_path, monkeypatch, capsys):
import subprocess
import sys
package = tmp_path / "litellm/proxy/_experimental/mcp_server"
package.mkdir(parents=True)
module = package / "operations.py"
module.write_text("from mcp.server.auth.middleware.auth_context import auth_context_var as hidden\n")
command = [sys.executable, str(Path(__file__).resolve().parents[2] / "scripts/check_mcp_operation_boundary.py")]
monkeypatch.chdir(tmp_path)
assert main() == 1
assert "operations.py:1:" in capsys.readouterr().err
rejected = subprocess.run(command, cwd=tmp_path, capture_output=True, text=True, check=False)
assert rejected.returncode == 1
assert "operations.py:1: MCP request/session state belongs in a legacy adapter" in rejected.stderr
module.write_text("def execute(context):\n return context.client_ip\n")
assert main() == 0
assert "MCP operation boundary: passed" in capsys.readouterr().out
accepted = subprocess.run(command, cwd=tmp_path, capture_output=True, text=True, check=False)
assert accepted.returncode == 0
assert "MCP operation boundary: passed" in accepted.stdout