Files
turnstone/tests/test_mcp_user_catalog.py
T
Patrick Buckley aefcf53405 fix(mcp): review round 1 — supersede retired-lock refreshes, per-kind debounce, complete gather pairs
- _refresh_server: post-acquire lock-identity + state-existence recheck;
  a pass superseded by remove (or remove + re-add) returns None and
  writes NO status — it must not run its list calls as a second,
  unserialized publisher against the re-add's discovery wiring,
  resurrect status rows for a removed server, or stamp a false "ok"
  over a generation it never refreshed. _refresh_all treats None as a
  deliberate skip (no breaker success record).
- Debounce stamps are per (server, kind) on BOTH paths: refreshes are
  kind-scoped, so a server-scoped stamp dropped a different-kind
  notification inside the window outright — a tools push swallowed the
  prompts push 100ms behind it, and nothing observed the prompt change
  until the server pushed that kind again. Teardown pops loop the
  kinds; remove_server_sync also discards the server's coalesce
  markers so a parked old-generation runner's marker cannot coalesce
  away a re-added server's first push.
- Resource refreshers (static + pool) gather with
  return_exceptions=True: fail-fast gather left the surviving list
  call running detached — outside the timeout scope and the lock
  serialization — as an unbounded in-flight request on the shared
  session.
- Spawned post-reconnect refreshes route through _refresh_server_logged:
  the re-raise escaped into _spawn_background's done-callback, whose
  exc_info log serializes the chained httpx.Request carrying the
  configured bearer for auth_type=static servers; _refresh_all's
  except drops exc_info for the same reason. Failure diagnostics widen
  to "Type: message" in logs and the error pill — the message text is
  header-free; only the serialized chain leaks.
- Accepted + documented: connect-lock contention on dispatch
  reconnects is bounded to one in-flight list call (parked runners
  bail instantly post-eviction); the error pill persists until the
  next COMPLETED refresh (a notification's arrival proves nothing
  about whether the failure resolved).
- Tests: per-kind debounce independence, superseded-pass writes
  nothing, gather-sibling completion, logged-wrapper swallow with the
  exc_info channel asserted SILENT, remove clears markers;
  _run_on_loop/_drain_background hoisted to conftest (4 drifted
  copies); proc.kill() portability in the live push test.

Runner-twin dedup (static/pool protocol duplication) deferred to #842.

Refs #839
2026-07-14 11:39:25 -07:00

1951 lines
76 KiB
Python

"""Phase 7 integration tests — per-user catalog scoping.
These tests drive ``_connect_one_pool`` against a real
``streamablehttp_client`` with the SDK's response hook bound to an
``httpx.MockTransport`` (R6 verified the happy path closes cleanly and
a mid-discovery 401 propagates through anyio TaskGroup unwinding).
Direct method injection on ``MagicMock`` as the SOLE gate is
forbidden — invariant 14 of the OAuth-MCP RFC.
The test scaffolding mirrors ``tests/test_mcp_pool_auth_introspection.py``
(per-test ``running_loop_mgr`` fixture, ``_seed_oauth_server`` helper,
``_run_on_loop``) and adds a tool-discovery transport that returns
``initialize`` + ``tools/list`` responses programmatically.
"""
from __future__ import annotations
import asyncio
import contextlib
import threading
import time
from typing import Any
from unittest.mock import MagicMock
import httpx
import pytest
from tests.conftest import _run_on_loop
from turnstone.core.mcp_client import (
MCPClientManager,
PoolEntryState,
_AuthCapture,
_make_capturing_http_factory,
)
# ---------------------------------------------------------------------------
# Fixtures and helpers
# ---------------------------------------------------------------------------
@pytest.fixture
def running_loop_mgr() -> Any:
"""Background mcp-loop fixture. Mirrors test_mcp_pool_auth_introspection."""
cfg: dict[str, Any] = {}
mgr = MCPClientManager(cfg)
loop = asyncio.new_event_loop()
thread = threading.Thread(target=loop.run_forever, daemon=True, name="mcp-pool-test-loop")
thread.start()
mgr._loop = loop
try:
yield mgr, loop, thread
finally:
async def _drain(m: MCPClientManager) -> None:
task = m._user_pool_eviction_task
if task is not None:
task.cancel()
with contextlib.suppress(BaseException):
await task
m._user_pool_eviction_task = None
with contextlib.suppress(Exception):
asyncio.run_coroutine_threadsafe(_drain(mgr), loop).result(timeout=2)
loop.call_soon_threadsafe(loop.stop)
thread.join(timeout=2)
def _build_mock_transport_factory(
mgr: MCPClientManager,
monkeypatch: pytest.MonkeyPatch,
handler: Any,
) -> None:
"""Wrap ``_make_capturing_http_factory`` so the resulting httpx
client uses an ``httpx.MockTransport(handler)``.
The production capturing factory is preserved (we still get the
response-hook plumbing); only the underlying transport is swapped.
Mirrors the spike v3 pattern that R6 used to verify discovery
behaviour against the real SDK.
"""
real_factory = _make_capturing_http_factory
def _wrapped_factory(
capture: _AuthCapture,
fired_event: asyncio.Event | None = None,
) -> Any:
inner = real_factory(capture, fired_event=fired_event)
def _factory(*args: Any, **kwargs: Any) -> httpx.AsyncClient:
client = inner(*args, **kwargs)
client._transport = httpx.MockTransport(handler)
return client
return _factory
monkeypatch.setattr(
"turnstone.core.mcp_client._make_capturing_http_factory",
_wrapped_factory,
)
def _patch_tcp_probe(mgr: MCPClientManager, monkeypatch: pytest.MonkeyPatch) -> None:
"""Skip the TCP probe — MockTransport never opens a real socket."""
async def _noop_probe(*_args: Any, **_kwargs: Any) -> None:
return None
monkeypatch.setattr(MCPClientManager, "_tcp_probe", _noop_probe)
def _make_jsonrpc_handler(
*,
init_response: dict[str, Any] | None = None,
list_tools_response: dict[str, Any] | None = None,
list_tools_status: int = 200,
list_tools_error_payload: dict[str, Any] | None = None,
list_tools_seq: list[dict[str, Any]] | None = None,
list_resources_response: dict[str, Any] | None = None,
list_resource_templates_response: dict[str, Any] | None = None,
list_prompts_response: dict[str, Any] | None = None,
list_resources_seq: list[dict[str, Any]] | None = None,
list_prompts_seq: list[dict[str, Any]] | None = None,
counter: list[int] | None = None,
record_bodies: list[str] | None = None,
) -> Any:
"""Build an httpx async handler for the ``streamable-http`` shape.
Returns a coroutine the MockTransport invokes per request.
"""
if init_response is None:
init_response = {
"jsonrpc": "2.0",
"id": 0,
"result": {
"protocolVersion": "2025-06-18",
"capabilities": {"tools": {"listChanged": False}},
"serverInfo": {"name": "fake", "version": "1"},
},
}
if list_tools_response is None:
list_tools_response = {
"jsonrpc": "2.0",
"id": 1,
"result": {"tools": []},
}
if list_resources_response is None:
list_resources_response = {
"jsonrpc": "2.0",
"id": 2,
"result": {"resources": []},
}
if list_resource_templates_response is None:
list_resource_templates_response = {
"jsonrpc": "2.0",
"id": 3,
"result": {"resourceTemplates": []},
}
if list_prompts_response is None:
list_prompts_response = {
"jsonrpc": "2.0",
"id": 4,
"result": {"prompts": []},
}
counter = counter if counter is not None else [0]
list_tools_seq = list_tools_seq or []
list_tools_index = [0]
list_resources_seq = list_resources_seq or []
list_resources_index = [0]
list_prompts_seq = list_prompts_seq or []
list_prompts_index = [0]
def _extract_id(body: str) -> Any:
"""Pull the JSON-RPC request id out of *body* via a tiny regex.
The SDK assigns request ids sequentially per :class:`ClientSession`
(initialize=0, list_tools=1, list_resources=2, ...). The mock
responses MUST echo the same id so the SDK's correlator can route
the response back to the awaiting future. Extracting from the
request body lets a single response template work regardless of
which list method ran first.
"""
import json as _json
import re as _re
match = _re.search(r'"id"\s*:\s*(\d+)', body)
if match:
return _json.loads(match.group(1))
return 1
async def _handler(req: httpx.Request) -> httpx.Response:
if req.method == "GET":
return httpx.Response(405)
if req.method == "DELETE":
return httpx.Response(200)
body = req.content.decode() if req.content else ""
if record_bodies is not None:
record_bodies.append(body)
if "notifications/initialized" in body:
return httpx.Response(202)
counter[0] += 1
req_id = _extract_id(body)
if "method" in body and '"initialize"' in body:
response_payload = dict(init_response)
response_payload["id"] = req_id
return httpx.Response(
200,
headers={"content-type": "application/json", "mcp-session-id": "sess-1"},
json=response_payload,
)
if '"resources/templates/list"' in body:
payload = dict(list_resource_templates_response)
payload["id"] = req_id
return httpx.Response(
200,
headers={"content-type": "application/json"},
json=payload,
)
if '"resources/list"' in body:
if list_resources_seq and list_resources_index[0] < len(list_resources_seq):
payload = dict(list_resources_seq[list_resources_index[0]])
list_resources_index[0] += 1
else:
payload = dict(list_resources_response)
payload["id"] = req_id
return httpx.Response(
200,
headers={"content-type": "application/json"},
json=payload,
)
if '"prompts/list"' in body:
if list_prompts_seq and list_prompts_index[0] < len(list_prompts_seq):
payload = dict(list_prompts_seq[list_prompts_index[0]])
list_prompts_index[0] += 1
else:
payload = dict(list_prompts_response)
payload["id"] = req_id
return httpx.Response(
200,
headers={"content-type": "application/json"},
json=payload,
)
# ``tools/list`` — by request order: explicit override first, then
# the staged sequence, then fall back to ``list_tools_response``.
if list_tools_status != 200:
return httpx.Response(
list_tools_status,
headers={"www-authenticate": 'Bearer error="invalid_token"'},
json=list_tools_error_payload or {"error": "unauthorized"},
)
if list_tools_seq and list_tools_index[0] < len(list_tools_seq):
payload = dict(list_tools_seq[list_tools_index[0]])
list_tools_index[0] += 1
else:
payload = dict(list_tools_response)
payload["id"] = req_id
return httpx.Response(
200,
headers={"content-type": "application/json"},
json=payload,
)
return _handler
def _list_tools_payload(tools: list[dict[str, Any]], req_id: int = 1) -> dict[str, Any]:
"""Build a minimal ``tools/list`` JSON-RPC result payload."""
return {
"jsonrpc": "2.0",
"id": req_id,
"result": {"tools": tools},
}
def _list_resources_payload(resources: list[dict[str, Any]], req_id: int = 2) -> dict[str, Any]:
"""Build a minimal ``resources/list`` JSON-RPC result payload."""
return {"jsonrpc": "2.0", "id": req_id, "result": {"resources": resources}}
def _list_prompts_payload(prompts: list[dict[str, Any]], req_id: int = 4) -> dict[str, Any]:
"""Build a minimal ``prompts/list`` JSON-RPC result payload."""
return {"jsonrpc": "2.0", "id": req_id, "result": {"prompts": prompts}}
def _init_response_with_caps(
*, resources: bool = False, prompts: bool = False, tools: bool = True
) -> dict[str, Any]:
"""Build an ``initialize`` response that advertises selected capabilities."""
caps: dict[str, Any] = {}
if tools:
caps["tools"] = {"listChanged": False}
if resources:
caps["resources"] = {"listChanged": False}
if prompts:
caps["prompts"] = {"listChanged": False}
return {
"jsonrpc": "2.0",
"id": 0,
"result": {
"protocolVersion": "2025-06-18",
"capabilities": caps,
"serverInfo": {"name": "fake", "version": "1"},
},
}
def _tool_spec(name: str, description: str = "") -> dict[str, Any]:
return {
"name": name,
"description": description or f"do {name}",
"inputSchema": {"type": "object", "properties": {}},
}
def _resource_spec(uri: str, *, name: str = "") -> dict[str, Any]:
return {"uri": uri, "name": name or uri, "mimeType": "text/plain"}
def _prompt_spec(name: str, *, description: str = "") -> dict[str, Any]:
return {
"name": name,
"description": description or f"prompt {name}",
"arguments": [],
}
def _connect_pool(
mgr: MCPClientManager,
loop: asyncio.AbstractEventLoop,
*,
user_id: str,
server_name: str,
url: str = "https://mcp.example.com/sse",
access_token: str = "access-aaa",
) -> PoolEntryState:
"""Drive ``_connect_one_pool`` once; returns the resulting entry."""
cfg: dict[str, Any] = {"type": "streamable-http", "url": url, "headers": {}}
capture = _AuthCapture()
fired = asyncio.Event()
async def _go() -> PoolEntryState:
return await mgr._connect_one_pool(
(user_id, server_name),
cfg,
access_token,
auth_capture=capture,
auth_fired_event=fired,
)
return _run_on_loop(loop, _go())
# ---------------------------------------------------------------------------
# Discovery on first connect — drives REAL streamablehttp_client + httpx
# MockTransport per invariant 14.
# ---------------------------------------------------------------------------
def test_discovery_on_pool_connect_via_real_streamable_http(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_connect_one_pool`` discovers the user's tool catalog after
``initialize()`` and stores it on the entry.
Drives through the real ``streamablehttp_client`` and the real
SDK ``ClientSession`` (only the underlying httpx transport is
swapped). Asserts on observable state rather than mock call count
so a refactor that produces the same end state still passes.
Verified by reverting the discovery block in ``_connect_one_pool``
(the ``await session.list_tools()`` + ``_rebuild_user_tool_map``
calls): this test fails because ``entry.tools`` stays ``None`` and
``_user_tool_map`` never gains the user_id key.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
list_tools_response=_list_tools_payload(
[_tool_spec("do_thing"), _tool_spec("other")],
),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
entry = _connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert entry.session is not None
assert entry.tools is not None
tool_names = {t["function"]["name"] for t in entry.tools}
assert tool_names == {"mcp__pool-srv__do_thing", "mcp__pool-srv__other"}
# Per-user index reflects the discovery.
user_map = mgr._user_tool_map.get("user-1")
assert user_map is not None
assert "mcp__pool-srv__do_thing" in user_map
assert user_map["mcp__pool-srv__do_thing"] == ("pool-srv", "do_thing")
# is_mcp_tool with the user's id sees the discovered tool.
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is True
# Default (None) caller does NOT — pool is per-user.
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing") is False
def test_pool_tool_visibility_user_isolation(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""Two users connecting to the same server have independent
``_user_tool_map`` entries; one user never sees another's catalog."""
mgr, loop, _ = running_loop_mgr
# Both users see the same set, but the per-user maps must stay
# independent — privacy is a structural property even when the
# contents happen to match.
handler = _make_jsonrpc_handler(
list_tools_response=_list_tools_payload([_tool_spec("shared_tool")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
_connect_pool(mgr, loop, user_id="user-2", server_name="pool-srv")
map_1 = mgr._user_tool_map.get("user-1")
map_2 = mgr._user_tool_map.get("user-2")
assert map_1 is not None and map_2 is not None
assert map_1 is not map_2
assert "mcp__pool-srv__shared_tool" in map_1
assert "mcp__pool-srv__shared_tool" in map_2
# Cross-user visibility is forbidden via is_mcp_tool: user-1's name
# presence implies nothing about user-3.
assert mgr.is_mcp_tool("mcp__pool-srv__shared_tool", user_id="user-3") is False
def test_evict_session_keeps_catalog_and_fires_no_listener(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_evict_session`` (dispatch-failure eviction: 401 / 403 /
transport blip) drops ONLY the session — the catalog and per-user
maps stay, no listener fires, and ``is_mcp_tool`` keeps resolving
the name (#836).
Clearing the catalog here silently removed the server's tools from
the user's live sessions on the first failed dispatch: the maps
rebuilt empty, the session-side ``is_mcp_tool`` gate closed, and
with no re-prime path the tools never came back — which also made
the breaker's half-open recovery and the consent / step-up cards
unreachable.
Verified by restoring the old catalog-cleanup block in
``_evict_session`` (``evict.tools = None`` + rebuild + notify):
this test fails because the listener fires AND ``is_mcp_tool``
flips to False.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
list_tools_response=_list_tools_payload([_tool_spec("do_thing")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is True
user_calls = [0]
admin_calls = [0]
def _user_cb() -> None:
user_calls[0] += 1
def _admin_cb() -> None:
admin_calls[0] += 1
mgr.add_listener(_user_cb, user_id="user-1")
mgr.add_listener(_admin_cb) # admin / None
mgr._evict_session(("user-1", "pool-srv"))
# Session dropped; catalog RETAINED; dead bearer copy cleared.
entry = mgr._user_pool_entries[("user-1", "pool-srv")]
assert entry.session is None
assert entry.bound_token is None
assert entry.tools is not None
# User map intact — the live session's merged tool list is untouched.
assert "user-1" in mgr._user_tool_map
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is True
# Nothing changed catalog-wise → NO fan-out.
assert user_calls[0] == 0, f"user-keyed listener fired {user_calls[0]} times; expected 0"
assert admin_calls[0] == 0, f"admin listener fired {admin_calls[0]} times; expected 0"
def test_evict_user_session_drops_catalog_and_fires_listener(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_evict_session_drop_catalog`` (the explicit-revocation flavor
behind ``evict_user_session``) clears ``entry.tools``, rebuilds the
user's map (drops the now-empty entry), and fires user + admin
listeners — the user asked for the disconnect, so their live
sessions SHOULD see the tools leave.
Verified by reverting the catalog-cleanup block in
``_evict_session_drop_catalog``: the test fails because the
listener never fires AND ``is_mcp_tool`` keeps returning True for
the now-revoked tool.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
list_tools_response=_list_tools_payload([_tool_spec("do_thing")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is True
# Register one user-keyed and one admin (None) listener; both
# MUST fire on this user's revocation.
user_calls = [0]
admin_calls = [0]
other_calls = [0]
def _user_cb() -> None:
user_calls[0] += 1
def _admin_cb() -> None:
admin_calls[0] += 1
def _other_cb() -> None:
other_calls[0] += 1
mgr.add_listener(_user_cb, user_id="user-1")
mgr.add_listener(_admin_cb) # admin / None
mgr.add_listener(_other_cb, user_id="user-2")
mgr._evict_session_drop_catalog(("user-1", "pool-srv"))
# Catalog cleared.
entry = mgr._user_pool_entries[("user-1", "pool-srv")]
assert entry.session is None
assert entry.tools is None
# User map dropped (no remaining pool entries for this user).
assert "user-1" not in mgr._user_tool_map
# is_mcp_tool no longer surfaces the revoked name.
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is False
# Listener fan-out: matching user + admin fire, OTHER user does not.
assert user_calls[0] == 1, f"user-keyed listener fired {user_calls[0]} times; expected 1"
assert admin_calls[0] == 1, f"admin listener fired {admin_calls[0]} times; expected 1"
assert other_calls[0] == 0, (
f"unrelated user-2 listener fired {other_calls[0]} times; expected 0 — "
"RFC §3.3 privacy violation."
)
def test_close_pool_entry_if_idle_cools_entry_for_live_session_user(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""TTL/LRU eviction COOLS the entry when the user has a live
session (a registered user-scoped tool listener): the transport is
torn down but the entry, its catalog, the per-user maps, and the
entry's ``open_lock`` all survive, and NO listener fires — the live
session's model-visible tool list must not shrink because the user
went 10 minutes without an MCP dispatch (#836).
Negative test: restore the unconditional pop + rebuild + notify in
``_close_pool_entry_if_idle``: this test fails because the entry
vanishes, ``is_mcp_tool`` flips to False, and the listener fires.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
list_tools_response=_list_tools_payload([_tool_spec("do_thing")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
key = ("user-1", "pool-srv")
# Retention also requires the server to still exist as a pool server.
mgr._oauth_user_server_names = {"pool-srv"}
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is True
assert mgr._user_pool_entries[key].in_flight == 0
# Seed the debounce dict so the prune-on-close is observable.
mgr._last_pool_notification_refresh[(key, "tools")] = 0.0
user_calls = [0]
admin_calls = [0]
def _user_cb() -> None:
user_calls[0] += 1
def _admin_cb() -> None:
admin_calls[0] += 1
# The user-scoped tool listener is the liveness signal (#836).
mgr.add_listener(_user_cb, user_id="user-1")
mgr.add_listener(_admin_cb) # admin / None
_run_on_loop(loop, mgr._close_pool_entry_if_idle(key))
# Entry cooled, not dropped: transport gone, catalog intact, dead
# bearer copy cleared with the transport.
entry = mgr._user_pool_entries.get(key)
assert entry is not None, "cooled entry must survive TTL eviction"
assert entry.session is None
assert entry.owner_task is None
assert entry.bound_token is None
assert entry.tools is not None
# The lock object must survive with the entry — an in-flight
# dispatcher's next acquire needs the same lock.
assert key in mgr._user_pool_locks
# Debounce stamp pruned with the transport.
assert (key, "tools") not in mgr._last_pool_notification_refresh
# Per-user catalog view untouched.
assert "user-1" in mgr._user_tool_map
assert "user-1" in mgr._user_tools
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is True
# Nothing changed catalog-wise → NO fan-out (a fan-out here would
# make every live session rebuild its tool list every idle TTL).
assert user_calls[0] == 0, f"user-keyed listener fired {user_calls[0]} times; expected 0"
assert admin_calls[0] == 0, f"admin listener fired {admin_calls[0]} times; expected 0"
# A second close on the already-cooled entry is a no-op — no drop,
# no fan-out (the eviction loop additionally skips cooled entries
# before even getting here).
_run_on_loop(loop, mgr._close_pool_entry_if_idle(key))
assert key in mgr._user_pool_entries
assert user_calls[0] == 0 and admin_calls[0] == 0
def test_close_pool_entry_if_idle_drops_entry_without_live_listener(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""TTL/LRU eviction FULLY drops the entry when the user has no live
session: entry popped, notification-debounce dict pruned, per-user
maps rebuilt, and the (admin-only) fan-out fires — departed users'
entries must not outlive their sessions.
Phase 7 round-2 review hardening (round2-1) heritage: the
catalog-cleanup block needs an integration test driving it — the
failure mode flagged in ``feedback_tests_through_boundaries.md``.
Negative test: drop the ``_rebuild_user_tool_map`` /
``_notify_user_tool_listeners`` calls from the post-pop block; this
test fails because ``is_mcp_tool`` keeps returning ``True`` for the
evicted name AND the admin listener never fires.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
list_tools_response=_list_tools_payload([_tool_spec("do_thing")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
key = ("user-1", "pool-srv")
# Registry seeded so the DROP below is attributable to the missing
# listener alone, not to registry-liveness.
mgr._oauth_user_server_names = {"pool-srv"}
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is True
assert mgr._user_pool_entries[key].in_flight == 0
# Seed the debounce dict so the perf-1 prune is observable.
mgr._last_pool_notification_refresh[(key, "tools")] = 0.0
admin_calls = [0]
other_calls = [0]
def _admin_cb() -> None:
admin_calls[0] += 1
def _other_cb() -> None:
other_calls[0] += 1
# NO user-1 tool listener — user-1 has no live session. The admin
# (None) and unrelated-user listeners don't count as liveness.
mgr.add_listener(_admin_cb) # admin / None
mgr.add_listener(_other_cb, user_id="user-2")
_run_on_loop(loop, mgr._close_pool_entry_if_idle(key))
# Entry fully removed.
assert key not in mgr._user_pool_entries
assert key not in mgr._user_pool_last_used
assert key not in mgr._user_pool_locks
# perf-1 prune: debounce dict no longer carries the key.
assert (key, "tools") not in mgr._last_pool_notification_refresh
# Catalog cleanup ran in BOTH dicts (bug-1 sibling + bug-2 cleanup).
assert "user-1" not in mgr._user_tool_map
assert "user-1" not in mgr._user_tools
assert mgr.is_mcp_tool("mcp__pool-srv__do_thing", user_id="user-1") is False
# Admin fan-out fires (operator tooling observes the drop); the
# unrelated user's listener does not.
assert admin_calls[0] == 1, f"admin listener fired {admin_calls[0]} times; expected 1"
assert other_calls[0] == 0, (
f"unrelated user-2 listener fired {other_calls[0]} times; expected 0 — "
"RFC §3.3 privacy violation."
)
def test_reconnect_after_eviction_corrects_catalog_drift(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""The retained catalog self-corrects at reconnect: the next
``_connect_one_pool`` re-runs discovery and REPLACES the stale
snapshot — no extra glue required (#836).
Between eviction and reconnect the OLD names stay visible (that is
the point of retention — the model can still emit them, and the
dispatch that follows performs this reconnect); a name the server
dropped in the meantime dies at the server as a per-call error
while the refreshed catalog fans out.
Verified by reverting the discovery block in ``_connect_one_pool``:
the reconnected entry keeps serving the stale ``tool_a`` and
``tool_b`` never appears.
"""
mgr, loop, _ = running_loop_mgr
# Sequence: first connect sees [tool_a]; the session dies; second
# connect (after backend rotates) sees [tool_b].
handler = _make_jsonrpc_handler(
list_tools_seq=[
_list_tools_payload([_tool_spec("tool_a")]),
_list_tools_payload([_tool_spec("tool_b")], req_id=1),
],
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert mgr.is_mcp_tool("mcp__pool-srv__tool_a", user_id="user-1") is True
mgr._evict_session(("user-1", "pool-srv"))
# Retention: the stale snapshot keeps serving the live session
# until the reconnect refreshes it.
assert mgr.is_mcp_tool("mcp__pool-srv__tool_a", user_id="user-1") is True
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
# Reconnect picked up the rotated catalog.
assert mgr.is_mcp_tool("mcp__pool-srv__tool_b", user_id="user-1") is True
# Old name was correctly purged — not still hanging around.
assert mgr.is_mcp_tool("mcp__pool-srv__tool_a", user_id="user-1") is False
def test_refresh_pool_server_tools_isolates_user(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_refresh_pool_server_tools`` refreshes THIS user's catalog only,
leaving the static path and other users' catalogs untouched.
Drives ``_refresh_pool_server_tools`` directly (which is also what
the pool session's notification handler invokes) and asserts:
* The pool entry's ``tools`` field reflects the new catalog.
* ``_user_tool_map`` for the owning user is updated.
* ``_tool_map`` (static) is untouched — invariant 1.
* Other users' ``_user_tool_map`` entries are untouched.
Verified by reverting ``_refresh_pool_server_tools`` to call
``_rebuild_tools()`` (the static path) instead of
``_rebuild_user_tool_map(user_id)``: this test fails because
``_tool_map`` is mutated and the user map doesn't pick up the
rotated catalog.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
list_tools_seq=[
_list_tools_payload([_tool_spec("v1")]),
_list_tools_payload([_tool_spec("v2")], req_id=2),
],
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
# Pre-seed a static-path entry to assert it stays untouched.
from turnstone.core.mcp_client import StaticServerState
sentinel_static = StaticServerState(name="static-srv", session=MagicMock())
sentinel_static.tools = [
{"type": "function", "function": {"name": "mcp__static-srv__static_one"}}
]
mgr._static_servers["static-srv"] = sentinel_static
mgr._tool_map["mcp__static-srv__static_one"] = ("static-srv", "static_one")
# Pre-seed an unrelated user's pool entry so we can assert it's
# untouched too.
async def _seed_other_user() -> None:
entry = await mgr._ensure_pool_entry(("user-2", "pool-srv"))
entry.session = MagicMock()
entry.tools = [{"type": "function", "function": {"name": "mcp__pool-srv__user2_only"}}]
mgr._rebuild_user_tool_map("user-2")
_run_on_loop(loop, _seed_other_user())
# Sanity: user-2's map is set.
assert "mcp__pool-srv__user2_only" in (mgr._user_tool_map.get("user-2") or {})
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert mgr.is_mcp_tool("mcp__pool-srv__v1", user_id="user-1") is True
# Trigger a refresh (simulating the notification handler invoking it).
added_removed = _run_on_loop(loop, mgr._refresh_pool_server_tools(("user-1", "pool-srv")))
added, removed = added_removed
assert added == ["mcp__pool-srv__v2"]
assert removed == ["mcp__pool-srv__v1"]
# User-1 sees the new tool.
assert mgr.is_mcp_tool("mcp__pool-srv__v2", user_id="user-1") is True
assert mgr.is_mcp_tool("mcp__pool-srv__v1", user_id="user-1") is False
# Static path untouched — hard invariant 1.
assert mgr._tool_map == {"mcp__static-srv__static_one": ("static-srv", "static_one")}
assert mgr._static_servers["static-srv"].tools == [
{"type": "function", "function": {"name": "mcp__static-srv__static_one"}}
]
# User-2's pool catalog untouched.
assert mgr._user_tool_map["user-2"] == {
"mcp__pool-srv__user2_only": ("pool-srv", "user2_only"),
}
# ---------------------------------------------------------------------------
# Invariant 1 — canonical regression: static path byte-identical when
# oauth_user is disabled.
# ---------------------------------------------------------------------------
def test_static_path_byte_identical_with_oauth_user_disabled(
running_loop_mgr: Any,
) -> None:
"""In a static-only deployment (no oauth_user config rows), the
Phase 7 changes MUST leave every static-path catalog API byte-
identical to pre-Phase-7 behaviour. This is invariant 1.
Drives ``_connect_one`` (static path) and asserts:
* ``get_tools()`` (no user_id) returns the static catalog only.
* ``is_mcp_tool(name)`` (no user_id) works as before.
* ``_tool_map`` is the only catalog index touched.
* No ``_user_*`` state exists (no pool entries / no per-user maps).
Static-path connect uses ``StaticServerState`` instead of pool
entries, so this test seeds it directly rather than driving through
``_connect_one`` (which is exercised by the existing integration
suite). The point is to assert the catalog API contract stays
intact under Phase 7's signature widening.
Verified by widening the default of ``get_tools(user_id)`` to
``user_id=""`` (instead of ``None``) — the test fails because
``get_tools()`` now goes through the per-user merge branch and
starts paying for an empty-loop iteration that pre-Phase-7
callers never saw.
"""
mgr, _loop, _ = running_loop_mgr
# Seed the static-path catalog directly (no pool plumbing needed).
from turnstone.core.mcp_client import StaticServerState
sentinel = StaticServerState(name="static-srv", session=MagicMock())
static_tool = {
"type": "function",
"function": {
"name": "mcp__static-srv__list",
"description": "list",
"parameters": {"type": "object", "properties": {}},
},
}
sentinel.tools = [static_tool]
mgr._static_servers["static-srv"] = sentinel
mgr._tools = [static_tool]
mgr._tool_map["mcp__static-srv__list"] = ("static-srv", "list")
# Pre-Phase-7 caller pattern: no kwargs.
pre_phase7_tools = mgr.get_tools()
assert pre_phase7_tools == [static_tool]
assert mgr.is_mcp_tool("mcp__static-srv__list") is True
assert mgr.is_mcp_tool("nonexistent") is False
# Per-user state does NOT exist when no pool entries are present.
assert mgr._user_pool_entries == {}
assert mgr._user_tool_map == {}
# ---------------------------------------------------------------------------
# R6 verification (production form): a 401 mid-discovery propagates
# rather than hangs. This test pins the empirical conclusion so a future
# SDK upgrade that re-introduces the hang surfaces here.
# ---------------------------------------------------------------------------
def test_pool_connect_list_tools_401_propagates(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""A 401 returned to the discovery POST surfaces as an exception
from ``_connect_one_pool`` within a bounded timeout (no hang).
The SDK propagates the 401 through anyio TaskGroup unwinding (raises
an ``ExceptionGroup`` from the surrounding ``streamablehttp_client``
context); the production reading is "discovery does not need the
carrier-race shape from ``_dispatch_pool_with_entry``."
If a future SDK bump silently re-introduces the hang, this test
will time out — ``_run_on_loop`` is invoked below with a 5s budget.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(list_tools_status=401)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
cfg: dict[str, Any] = {
"type": "streamable-http",
"url": "https://mcp.example.com/sse",
"headers": {},
}
capture = _AuthCapture()
fired = asyncio.Event()
t0 = time.monotonic()
# The 401 surfaces as ``ExceptionGroup`` (anyio TaskGroup unwinding
# wraps the underlying ``HTTPStatusError``); both are ``Exception``
# subclasses. The point of the assertion is "the call returned/raised
# within the timeout instead of hanging" — the type-discrimination
# tests cover the carrier classification path.
with pytest.raises(Exception): # noqa: B017 — generic catch documents the no-hang assertion
_run_on_loop(
loop,
mgr._connect_one_pool(
("user-1", "pool-srv"),
cfg,
"access-aaa",
auth_capture=capture,
auth_fired_event=fired,
),
timeout=5,
)
elapsed = time.monotonic() - t0
# Hard upper bound — the spike's happy path closed in ~0.05s, so a
# 401 propagation that takes longer than 5s is the hang regression.
assert elapsed < 5.0, f"_connect_one_pool 401 hang regression: {elapsed:.2f}s"
# Carrier captured the 401 — the response hook fired before the
# SDK propagated the failure, so the dispatcher would have the
# auth signal even though discovery aborted.
assert capture.status == 401, (
f"401 mid-discovery did NOT surface to carrier; capture.status={capture.status}"
)
# ---------------------------------------------------------------------------
# Listener fan-out — RFC §3.3 verification (Chunk 3)
# ---------------------------------------------------------------------------
def test_listener_identity_includes_user_id() -> None:
"""Listener identity is the ``(user_id, callback)`` tuple, not the
callback alone — removing for user A leaves user B's registration
intact even when the same callable was registered for both.
Negative-test reproducer: revert ``add_listener`` /
``remove_listener`` to keep storage as a flat list of callables —
this test fails because removing one registration accidentally
removes BOTH (callable identity is shared).
"""
mgr = MCPClientManager({})
calls = []
def _shared_cb() -> None:
calls.append(time.monotonic())
mgr.add_listener(_shared_cb, user_id="user-A")
mgr.add_listener(_shared_cb, user_id="user-B")
# Removing user-A's registration leaves user-B's intact.
mgr.remove_listener(_shared_cb, user_id="user-A")
# Static-path notify fires both registrations; with user-A removed,
# only user-B fires now.
mgr._notify_listeners()
assert len(calls) == 1, (
f"shared callback fired {len(calls)} times after removing user-A's "
"registration; expected 1 (user-B's registration intact)"
)
# Now remove user-B's; static-path notify fires nobody.
mgr.remove_listener(_shared_cb, user_id="user-B")
calls.clear()
mgr._notify_listeners()
assert calls == [], "callback fired after BOTH user_id-keyed registrations removed"
# ---------------------------------------------------------------------------
# Phase 7b — listener-identity widening for resources and prompts
# ---------------------------------------------------------------------------
def test_resource_listener_identity_includes_user_id() -> None:
"""``add_resource_listener`` / ``remove_resource_listener`` use the
``(user_id, callback)`` tuple as identity, mirroring the tool path.
Negative-test reproducer: revert the listener storage to a flat
list of callables — this test fails because removing one
registration accidentally removes both.
"""
mgr = MCPClientManager({})
calls = []
def _shared_cb() -> None:
calls.append(1)
mgr.add_resource_listener(_shared_cb, user_id="user-A")
mgr.add_resource_listener(_shared_cb, user_id="user-B")
mgr.remove_resource_listener(_shared_cb, user_id="user-A")
mgr._notify_resource_listeners()
assert len(calls) == 1, (
f"shared callback fired {len(calls)} times after removing user-A; expected 1"
)
mgr.remove_resource_listener(_shared_cb, user_id="user-B")
calls.clear()
mgr._notify_resource_listeners()
assert calls == [], "callback fired after BOTH registrations removed"
def test_prompt_listener_identity_includes_user_id() -> None:
"""Mirror of :func:`test_resource_listener_identity_includes_user_id`
for prompt listeners — Phase 7b widens both APIs."""
mgr = MCPClientManager({})
calls = []
def _shared_cb() -> None:
calls.append(1)
mgr.add_prompt_listener(_shared_cb, user_id="user-A")
mgr.add_prompt_listener(_shared_cb, user_id="user-B")
mgr.remove_prompt_listener(_shared_cb, user_id="user-A")
mgr._notify_prompt_listeners()
assert len(calls) == 1, (
f"shared callback fired {len(calls)} times after removing user-A; expected 1"
)
mgr.remove_prompt_listener(_shared_cb, user_id="user-B")
calls.clear()
mgr._notify_prompt_listeners()
assert calls == [], "callback fired after BOTH registrations removed"
def test_user_resource_listeners_isolated_to_matching_user() -> None:
"""``_notify_user_resource_listeners(user_id)`` fires only matching
user-id listeners + admin (None), never another user's listener.
RFC §3.3 — pool catalog change is private to its owning user.
"""
mgr = MCPClientManager({})
user_a_calls = [0]
user_b_calls = [0]
admin_calls = [0]
def _user_a() -> None:
user_a_calls[0] += 1
def _user_b() -> None:
user_b_calls[0] += 1
def _admin() -> None:
admin_calls[0] += 1
mgr.add_resource_listener(_user_a, user_id="user-A")
mgr.add_resource_listener(_user_b, user_id="user-B")
mgr.add_resource_listener(_admin) # admin / None
mgr._notify_user_resource_listeners("user-A")
assert user_a_calls[0] == 1
assert user_b_calls[0] == 0, (
f"unrelated user-B listener fired {user_b_calls[0]} times — RFC §3.3 violation"
)
assert admin_calls[0] == 1
def test_user_prompt_listeners_isolated_to_matching_user() -> None:
"""Mirror for prompt listeners — see resource version above."""
mgr = MCPClientManager({})
user_a_calls = [0]
user_b_calls = [0]
admin_calls = [0]
def _user_a() -> None:
user_a_calls[0] += 1
def _user_b() -> None:
user_b_calls[0] += 1
def _admin() -> None:
admin_calls[0] += 1
mgr.add_prompt_listener(_user_a, user_id="user-A")
mgr.add_prompt_listener(_user_b, user_id="user-B")
mgr.add_prompt_listener(_admin)
mgr._notify_user_prompt_listeners("user-A")
assert user_a_calls[0] == 1
assert user_b_calls[0] == 0, (
f"unrelated user-B listener fired {user_b_calls[0]} times — RFC §3.3 violation"
)
assert admin_calls[0] == 1
# ---------------------------------------------------------------------------
# Phase 7b — _rebuild_user_resource_map / _rebuild_user_prompt_map
# (sibling-cache invariant; loop-only writes; per-user isolation)
# ---------------------------------------------------------------------------
def test_rebuild_user_resource_map_isolates_users(running_loop_mgr: Any) -> None:
"""``_rebuild_user_resource_map`` populates user-A's resource map
from user-A's pool entries only; user-B remains untouched. Empty
rebuilds drop the user_id key from all three sibling dicts.
"""
mgr, loop, _ = running_loop_mgr
async def _seed() -> None:
a_entry = await mgr._ensure_pool_entry(("user-A", "pool-srv"))
a_entry.session = MagicMock()
a_entry.resources = [
{
"uri": "res://a/1",
"name": "r1",
"description": "",
"mimeType": "",
"server": "pool-srv",
},
]
b_entry = await mgr._ensure_pool_entry(("user-B", "pool-srv"))
b_entry.session = MagicMock()
b_entry.resources = [
{
"uri": "res://b/1",
"name": "r2",
"description": "",
"mimeType": "",
"server": "pool-srv",
},
]
mgr._rebuild_user_resource_map("user-A")
mgr._rebuild_user_resource_map("user-B")
_run_on_loop(loop, _seed())
a_map = mgr._user_resource_map.get("user-A") or {}
b_map = mgr._user_resource_map.get("user-B") or {}
assert "res://a/1" in a_map and "res://b/1" not in a_map
assert "res://b/1" in b_map and "res://a/1" not in b_map
assert mgr._user_resources["user-A"][0]["uri"] == "res://a/1"
assert mgr._user_resources["user-B"][0]["uri"] == "res://b/1"
# Empty rebuild after clearing entries drops the key from all three
# dicts so idle users don't retain empty-list sentinels.
async def _clear() -> None:
mgr._user_pool_entries[("user-A", "pool-srv")].resources = None
mgr._rebuild_user_resource_map("user-A")
_run_on_loop(loop, _clear())
assert "user-A" not in mgr._user_resource_map
assert "user-A" not in mgr._user_resources
assert "user-A" not in mgr._user_template_prefixes
def test_rebuild_user_resource_map_carries_template_prefixes(
running_loop_mgr: Any,
) -> None:
"""Template entries (``r["template"] == True``) populate the
per-user template-prefix dict; the longer-prefix-wins collision
policy mirrors the static path."""
mgr, loop, _ = running_loop_mgr
async def _seed() -> None:
entry = await mgr._ensure_pool_entry(("user-A", "pool-srv"))
entry.session = MagicMock()
entry.resources = [
{
"uri": "res://item/{id}",
"name": "items",
"description": "",
"mimeType": "",
"server": "pool-srv",
"template": True,
},
]
mgr._rebuild_user_resource_map("user-A")
_run_on_loop(loop, _seed())
prefixes = mgr._user_template_prefixes.get("user-A") or {}
assert "res://item/" in prefixes
assert prefixes["res://item/"] == ("pool-srv", "res://item/{id}")
def test_rebuild_user_prompt_map_isolates_users(running_loop_mgr: Any) -> None:
"""Mirror of resource isolation test for prompts."""
mgr, loop, _ = running_loop_mgr
async def _seed() -> None:
a_entry = await mgr._ensure_pool_entry(("user-A", "pool-srv"))
a_entry.session = MagicMock()
a_entry.prompts = [
{
"name": "mcp__pool-srv__a_prompt",
"original_name": "a_prompt",
"server": "pool-srv",
"description": "",
"arguments": [],
}
]
b_entry = await mgr._ensure_pool_entry(("user-B", "pool-srv"))
b_entry.session = MagicMock()
b_entry.prompts = [
{
"name": "mcp__pool-srv__b_prompt",
"original_name": "b_prompt",
"server": "pool-srv",
"description": "",
"arguments": [],
}
]
mgr._rebuild_user_prompt_map("user-A")
mgr._rebuild_user_prompt_map("user-B")
_run_on_loop(loop, _seed())
assert "mcp__pool-srv__a_prompt" in (mgr._user_prompt_map.get("user-A") or {})
assert "mcp__pool-srv__a_prompt" not in (mgr._user_prompt_map.get("user-B") or {})
assert "mcp__pool-srv__b_prompt" in (mgr._user_prompt_map.get("user-B") or {})
def test_shutdown_clears_user_resource_and_prompt_state() -> None:
"""``shutdown`` releases all per-user catalog dicts (Phase 7b
addition); without this clear, idle users would retain
map+list+template_prefix sentinels across the manager lifecycle.
"""
mgr = MCPClientManager({})
# Seed all per-user state directly (no loop required for the dict
# mutation; ``shutdown`` is also no-op when ``_loop`` is None).
mgr._user_tool_map["user-A"] = {"x": ("s", "x")}
mgr._user_tools["user-A"] = [{"function": {"name": "x"}}]
mgr._user_resource_map["user-A"] = {"u": ("s", "u")}
mgr._user_resources["user-A"] = [{"uri": "u"}]
mgr._user_template_prefixes["user-A"] = {"u/": ("s", "u/{id}")}
mgr._user_prompt_map["user-A"] = {"p": ("s", "p")}
mgr._user_prompts["user-A"] = [{"name": "p"}]
mgr.shutdown()
assert mgr._user_tool_map == {}
assert mgr._user_tools == {}
assert mgr._user_resource_map == {}
assert mgr._user_resources == {}
assert mgr._user_template_prefixes == {}
assert mgr._user_prompt_map == {}
assert mgr._user_prompts == {}
# ---------------------------------------------------------------------------
# Phase 7b — public read API widening (get_resources / get_prompts /
# is_mcp_prompt / *_count_for_user / _match_template)
# ---------------------------------------------------------------------------
def test_get_resources_user_id_none_returns_static_only() -> None:
"""``get_resources()`` with no kwargs returns the static-only
catalog — preserves the pre-Phase-7b contract for legacy callers
(admin endpoints, boot-time logging)."""
mgr = MCPClientManager({})
static_res = {"uri": "res://static/1", "server": "static-srv"}
pool_res = {"uri": "res://pool/1", "server": "pool-srv"}
mgr._resources = [static_res]
mgr._user_resources["user-A"] = [pool_res]
assert mgr.get_resources() == [static_res]
# Sibling user_id-less default doesn't reach into per-user state.
assert mgr.get_resources(None) == [static_res]
def test_get_resources_user_id_returns_per_user_first_then_static() -> None:
"""Per-user-first ordering (scope decision 0.1): pool resources
come BEFORE static in the merged list. The same user with no pool
entries sees just the static catalog."""
mgr = MCPClientManager({})
static_res = {"uri": "res://static/1", "server": "static-srv"}
pool_res = {"uri": "res://pool/1", "server": "pool-srv"}
mgr._resources = [static_res]
mgr._user_resources["user-A"] = [pool_res]
merged = mgr.get_resources("user-A")
assert merged[0]["uri"] == "res://pool/1" # per-user-first
assert merged[1]["uri"] == "res://static/1"
# User-B has no pool entries → static-only merged view.
assert mgr.get_resources("user-B") == [static_res]
def test_get_prompts_user_id_returns_per_user_first_then_static() -> None:
"""Mirror of resource version for prompts."""
mgr = MCPClientManager({})
static_p = {"name": "mcp__static-srv__p1", "server": "static-srv"}
pool_p = {"name": "mcp__pool-srv__p1", "server": "pool-srv"}
mgr._prompts = [static_p]
mgr._user_prompts["user-A"] = [pool_p]
merged = mgr.get_prompts("user-A")
assert merged[0]["name"] == "mcp__pool-srv__p1"
assert merged[1]["name"] == "mcp__static-srv__p1"
assert mgr.get_prompts() == [static_p]
def test_is_mcp_prompt_user_id_extends_lookup_to_pool() -> None:
"""``is_mcp_prompt(name, user_id="...")`` returns True when the
name lives in either the static map OR the user's per-user prompt
map. Without the kwarg, only the static map is consulted."""
mgr = MCPClientManager({})
mgr._prompt_map["mcp__static-srv__p"] = ("static-srv", "p")
mgr._user_prompt_map["user-A"] = {"mcp__pool-srv__p": ("pool-srv", "p")}
assert mgr.is_mcp_prompt("mcp__static-srv__p") is True
assert mgr.is_mcp_prompt("mcp__pool-srv__p") is False # no user_id → static only
assert mgr.is_mcp_prompt("mcp__pool-srv__p", user_id="user-A") is True
assert mgr.is_mcp_prompt("mcp__pool-srv__p", user_id="user-B") is False
def test_resource_count_for_user_includes_pool() -> None:
"""``resource_count_for_user`` reports static + the user's pool;
the legacy ``resource_count`` property stays static-only (admin
endpoints rely on the property contract)."""
mgr = MCPClientManager({})
mgr._resources = [{"uri": "res://static/1"}, {"uri": "res://static/2"}]
mgr._user_resources["user-A"] = [{"uri": "res://pool/1"}]
assert mgr.resource_count == 2 # process-global, unchanged
assert mgr.resource_count_for_user(None) == 2
assert mgr.resource_count_for_user("user-A") == 3
assert mgr.resource_count_for_user("user-B") == 2 # no pool entries
def test_prompt_count_for_user_includes_pool() -> None:
"""Mirror of resource version for prompts."""
mgr = MCPClientManager({})
mgr._prompts = [{"name": "p1"}]
mgr._user_prompts["user-A"] = [{"name": "pa"}, {"name": "pb"}]
assert mgr.prompt_count == 1
assert mgr.prompt_count_for_user("user-A") == 3
assert mgr.prompt_count_for_user("user-B") == 1
def test_match_template_per_user_first_resolution() -> None:
"""Per-user templates win over static templates at the same prefix
(scope decision 0.1). Without ``user_id``, only static prefixes
are consulted."""
mgr = MCPClientManager({})
mgr._template_prefixes["res://item/"] = ("static-srv", "res://item/{id}")
mgr._user_template_prefixes["user-A"] = {
"res://item/": ("pool-srv", "res://item/{id}"),
}
# Pre-Phase-7b call (no user_id) keeps static behaviour.
assert mgr._match_template("res://item/42") == ("static-srv", "res://item/{id}")
# User-A sees the per-user template first.
assert mgr._match_template("res://item/42", user_id="user-A") == (
"pool-srv",
"res://item/{id}",
)
# User-B has no per-user templates → falls through to static.
assert mgr._match_template("res://item/42", user_id="user-B") == (
"static-srv",
"res://item/{id}",
)
def test_match_template_longest_prefix_within_user_scope() -> None:
"""Within the per-user index, longest-prefix-wins matching applies
just like the static path. The static fall-through MUST NOT win
when the per-user index already produced a match."""
mgr = MCPClientManager({})
mgr._template_prefixes["res://"] = ("static-srv", "res://{rest}")
mgr._user_template_prefixes["user-A"] = {
"res://item/": ("pool-srv", "res://item/{id}"),
}
# User-A's longer-prefix template wins even though static has a
# shorter prefix that would also match.
assert mgr._match_template("res://item/42", user_id="user-A") == (
"pool-srv",
"res://item/{id}",
)
# ---------------------------------------------------------------------------
# Phase 7b — discovery via REAL streamablehttp_client + httpx.MockTransport
# (invariant 14: boundary-crossing code drives through real SDK plumbing).
# ---------------------------------------------------------------------------
def test_pool_resource_discovery_on_connect_via_real_streamable_http(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_connect_one_pool`` discovers the user's resource catalog after
``initialize()`` (capability-gated) and stores it on the entry plus
the per-user resource map.
Negative-test reproducer: revert the discovery + rebuild block in
``_connect_one_pool`` (drop the ``list_resources`` call and the
``_rebuild_user_resource_map`` invocation): this test fails because
``entry.resources`` stays None and ``_user_resource_map`` never
gains the user_id key.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True),
list_resources_response=_list_resources_payload(
[_resource_spec("res://test/1"), _resource_spec("res://test/2")]
),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
entry = _connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert entry.session is not None
assert entry.supports_resources is True
assert entry.resources is not None
uris = {r["uri"] for r in entry.resources}
assert uris == {"res://test/1", "res://test/2"}
user_map = mgr._user_resource_map.get("user-1")
assert user_map is not None
assert user_map["res://test/1"] == ("pool-srv", "res://test/1")
# Per-user resource list reflects discovery.
assert {r["uri"] for r in mgr._user_resources["user-1"]} == {"res://test/1", "res://test/2"}
def test_pool_prompt_discovery_on_connect_via_real_streamable_http(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_connect_one_pool`` discovers the user's prompt catalog
capability-gated. Mirror of resource discovery test."""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(prompts=True),
list_prompts_response=_list_prompts_payload(
[_prompt_spec("greet"), _prompt_spec("summary")]
),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
entry = _connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert entry.session is not None
assert entry.supports_prompts is True
assert entry.prompts is not None
names = {p["name"] for p in entry.prompts}
assert names == {"mcp__pool-srv__greet", "mcp__pool-srv__summary"}
user_map = mgr._user_prompt_map.get("user-1")
assert user_map is not None
assert user_map["mcp__pool-srv__greet"] == ("pool-srv", "greet")
# is_mcp_prompt with user_id surfaces the discovered prompt.
assert mgr.is_mcp_prompt("mcp__pool-srv__greet", user_id="user-1") is True
assert mgr.is_mcp_prompt("mcp__pool-srv__greet") is False
def test_pool_discovery_skips_resources_and_prompts_without_capability(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""When the server does NOT advertise resources / prompts in its
initialize response, ``_connect_one_pool`` MUST skip the discovery
round-trips entirely. ``entry.supports_resources`` /
``supports_prompts`` stay False; the catalog stays None.
Negative-test: drop the capability gates in ``_connect_one_pool``
(force unconditional discovery) — this test fails because the
handler returns no resources/list response, the SDK times out, and
the connect coroutine raises.
"""
mgr, loop, _ = running_loop_mgr
# init_response defaults declare ONLY tools.
handler = _make_jsonrpc_handler()
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
entry = _connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert entry.session is not None
assert entry.supports_resources is False
assert entry.supports_prompts is False
assert entry.resources is None
assert entry.prompts is None
# No per-user resource/prompt map entry for this user.
assert "user-1" not in mgr._user_resource_map
assert "user-1" not in mgr._user_prompt_map
def test_pool_resource_user_isolation(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""Two users connecting to the same resource-bearing server have
independent per-user resource maps; one user never sees another's
catalog."""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True),
list_resources_response=_list_resources_payload([_resource_spec("res://shared")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
_connect_pool(mgr, loop, user_id="user-2", server_name="pool-srv")
map_1 = mgr._user_resource_map.get("user-1") or {}
map_2 = mgr._user_resource_map.get("user-2") or {}
assert map_1 is not map_2
assert "res://shared" in map_1 and "res://shared" in map_2
def test_pool_prompt_user_isolation(running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch) -> None:
"""Mirror for prompts — independent per-user prompt maps."""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(prompts=True),
list_prompts_response=_list_prompts_payload([_prompt_spec("shared_prompt")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
_connect_pool(mgr, loop, user_id="user-2", server_name="pool-srv")
map_1 = mgr._user_prompt_map.get("user-1") or {}
map_2 = mgr._user_prompt_map.get("user-2") or {}
assert map_1 is not map_2
assert "mcp__pool-srv__shared_prompt" in map_1
assert "mcp__pool-srv__shared_prompt" in map_2
# ---------------------------------------------------------------------------
# Phase 7b — refresh on notification (resources/prompts list_changed)
# ---------------------------------------------------------------------------
def test_refresh_pool_server_resources_isolates_user(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_refresh_pool_server_resources`` refreshes THIS user's catalog only,
leaving the static path and other users' catalogs untouched.
Negative-test: revert the refresh to call ``_rebuild_resources()``
(the static path) instead of ``_rebuild_user_resource_map(user_id)``;
this test fails because the static map is mutated and the user map
doesn't pick up the rotated catalog.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True),
list_resources_seq=[
_list_resources_payload([_resource_spec("res://v1")]),
_list_resources_payload([_resource_spec("res://v2")]),
],
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
# Pre-seed a static-path resource so we can assert it's untouched.
from turnstone.core.mcp_client import StaticServerState
sentinel_static = StaticServerState(name="static-srv", session=MagicMock())
sentinel_static.resources = [
{"uri": "res://static/keep", "server": "static-srv", "name": "", "mimeType": ""}
]
mgr._static_servers["static-srv"] = sentinel_static
mgr._resource_map["res://static/keep"] = ("static-srv", "res://static/keep")
# Pre-seed user-2's pool entry so we can assert it stays untouched.
async def _seed_other_user() -> None:
entry = await mgr._ensure_pool_entry(("user-2", "pool-srv"))
entry.session = MagicMock()
entry.supports_resources = True
entry.resources = [
{"uri": "res://user2_only", "server": "pool-srv", "name": "", "mimeType": ""}
]
mgr._rebuild_user_resource_map("user-2")
_run_on_loop(loop, _seed_other_user())
assert "res://user2_only" in (mgr._user_resource_map.get("user-2") or {})
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert "res://v1" in (mgr._user_resource_map.get("user-1") or {})
added_removed = _run_on_loop(loop, mgr._refresh_pool_server_resources(("user-1", "pool-srv")))
added, removed = added_removed
assert added == ["res://v2"]
assert removed == ["res://v1"]
# User-1 sees the new resource.
assert "res://v2" in (mgr._user_resource_map.get("user-1") or {})
assert "res://v1" not in (mgr._user_resource_map.get("user-1") or {})
# Static path untouched — invariant 1.
assert mgr._resource_map == {"res://static/keep": ("static-srv", "res://static/keep")}
# User-2's pool catalog untouched.
assert mgr._user_resource_map["user-2"] == {
"res://user2_only": ("pool-srv", "res://user2_only")
}
def test_refresh_pool_server_prompts_isolates_user(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""Mirror for prompts — refresh isolates to one user."""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(prompts=True),
list_prompts_seq=[
_list_prompts_payload([_prompt_spec("v1")]),
_list_prompts_payload([_prompt_spec("v2")]),
],
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
# Pre-seed a static-path prompt and another user's pool prompt.
from turnstone.core.mcp_client import StaticServerState
sentinel = StaticServerState(name="static-srv", session=MagicMock())
sentinel.prompts = [
{
"name": "mcp__static-srv__keep",
"original_name": "keep",
"server": "static-srv",
"description": "",
"arguments": [],
}
]
mgr._static_servers["static-srv"] = sentinel
mgr._prompt_map["mcp__static-srv__keep"] = ("static-srv", "keep")
async def _seed_other_user() -> None:
entry = await mgr._ensure_pool_entry(("user-2", "pool-srv"))
entry.session = MagicMock()
entry.supports_prompts = True
entry.prompts = [
{
"name": "mcp__pool-srv__user2",
"original_name": "user2",
"server": "pool-srv",
"description": "",
"arguments": [],
}
]
mgr._rebuild_user_prompt_map("user-2")
_run_on_loop(loop, _seed_other_user())
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert "mcp__pool-srv__v1" in (mgr._user_prompt_map.get("user-1") or {})
added_removed = _run_on_loop(loop, mgr._refresh_pool_server_prompts(("user-1", "pool-srv")))
added, removed = added_removed
assert added == ["mcp__pool-srv__v2"]
assert removed == ["mcp__pool-srv__v1"]
assert mgr._prompt_map == {"mcp__static-srv__keep": ("static-srv", "keep")}
assert mgr._user_prompt_map["user-2"] == {"mcp__pool-srv__user2": ("pool-srv", "user2")}
def test_refresh_pool_server_resources_skips_when_capability_unset(
running_loop_mgr: Any,
) -> None:
"""If ``entry.supports_resources`` is False, the refresh returns
``([], [])`` without making any list calls — no SDK round-trip."""
mgr, loop, _ = running_loop_mgr
async def _seed() -> None:
entry = await mgr._ensure_pool_entry(("user-1", "pool-srv"))
entry.session = MagicMock() # session present but capability unset
entry.supports_resources = False
_run_on_loop(loop, _seed())
added, removed = _run_on_loop(loop, mgr._refresh_pool_server_resources(("user-1", "pool-srv")))
assert added == []
assert removed == []
def test_refresh_pool_server_prompts_skips_when_capability_unset(
running_loop_mgr: Any,
) -> None:
"""Mirror for prompts."""
mgr, loop, _ = running_loop_mgr
async def _seed() -> None:
entry = await mgr._ensure_pool_entry(("user-1", "pool-srv"))
entry.session = MagicMock()
entry.supports_prompts = False
_run_on_loop(loop, _seed())
added, removed = _run_on_loop(loop, mgr._refresh_pool_server_prompts(("user-1", "pool-srv")))
assert added == []
assert removed == []
# ---------------------------------------------------------------------------
# Phase 7b — symmetric eviction (resources/prompts cleared + listeners fire)
# ---------------------------------------------------------------------------
def test_evict_session_keeps_resource_and_prompt_catalogs(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_evict_session`` retains ``entry.resources`` / ``entry.prompts``
and their per-user maps, firing NO listeners — symmetric with the
tool-catalog retention (#836). The revocation flavor
(``_evict_session_drop_catalog``) is what clears and notifies; see
the sibling test below.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True, prompts=True),
list_resources_response=_list_resources_payload([_resource_spec("res://r/1")]),
list_prompts_response=_list_prompts_payload([_prompt_spec("p1")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert "res://r/1" in (mgr._user_resource_map.get("user-1") or {})
assert "mcp__pool-srv__p1" in (mgr._user_prompt_map.get("user-1") or {})
res_calls = [0]
prompt_calls = [0]
other_res_calls = [0]
other_prompt_calls = [0]
def _user_res_cb() -> None:
res_calls[0] += 1
def _user_prompt_cb() -> None:
prompt_calls[0] += 1
def _other_res_cb() -> None:
other_res_calls[0] += 1
def _other_prompt_cb() -> None:
other_prompt_calls[0] += 1
mgr.add_resource_listener(_user_res_cb, user_id="user-1")
mgr.add_resource_listener(_other_res_cb, user_id="user-2")
mgr.add_prompt_listener(_user_prompt_cb, user_id="user-1")
mgr.add_prompt_listener(_other_prompt_cb, user_id="user-2")
mgr._evict_session(("user-1", "pool-srv"))
entry = mgr._user_pool_entries[("user-1", "pool-srv")]
assert entry.session is None
# All three catalogs retained.
assert entry.tools is not None
assert entry.resources is not None
assert entry.prompts is not None
# Per-user maps keep the entries.
assert "res://r/1" in (mgr._user_resource_map.get("user-1") or {})
assert "mcp__pool-srv__p1" in (mgr._user_prompt_map.get("user-1") or {})
# Nothing changed catalog-wise → NO fan-out for anyone.
assert res_calls[0] == 0
assert prompt_calls[0] == 0
assert other_res_calls[0] == 0, "unrelated user-2 resource listener fired — RFC §3.3 violation"
assert other_prompt_calls[0] == 0, "unrelated user-2 prompt listener fired — RFC §3.3 violation"
def test_evict_user_session_clears_resource_and_prompt_catalogs(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""``_evict_session_drop_catalog`` (explicit revocation) clears
``entry.resources`` / ``entry.prompts``, rebuilds both per-user
maps (drops the now-empty entries), and fires the matching
user-keyed listeners for resources and prompts.
Negative-test: drop the resource/prompt cleanup in
``_evict_session_drop_catalog``: this test fails because the
user-resource map keeps the revoked URIs and no resource listener
fires.
"""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True, prompts=True),
list_resources_response=_list_resources_payload([_resource_spec("res://r/1")]),
list_prompts_response=_list_prompts_payload([_prompt_spec("p1")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert "res://r/1" in (mgr._user_resource_map.get("user-1") or {})
assert "mcp__pool-srv__p1" in (mgr._user_prompt_map.get("user-1") or {})
res_calls = [0]
prompt_calls = [0]
other_res_calls = [0]
other_prompt_calls = [0]
def _user_res_cb() -> None:
res_calls[0] += 1
def _user_prompt_cb() -> None:
prompt_calls[0] += 1
def _other_res_cb() -> None:
other_res_calls[0] += 1
def _other_prompt_cb() -> None:
other_prompt_calls[0] += 1
mgr.add_resource_listener(_user_res_cb, user_id="user-1")
mgr.add_resource_listener(_other_res_cb, user_id="user-2")
mgr.add_prompt_listener(_user_prompt_cb, user_id="user-1")
mgr.add_prompt_listener(_other_prompt_cb, user_id="user-2")
mgr._evict_session_drop_catalog(("user-1", "pool-srv"))
entry = mgr._user_pool_entries[("user-1", "pool-srv")]
assert entry.session is None
assert entry.tools is None
assert entry.resources is None
assert entry.prompts is None
# Per-user maps drop the revoked entries.
assert "user-1" not in mgr._user_resource_map
assert "user-1" not in mgr._user_prompt_map
# Listeners fire for the revoked user but not for the unrelated user.
assert res_calls[0] == 1
assert prompt_calls[0] == 1
assert other_res_calls[0] == 0, "unrelated user-2 resource listener fired — RFC §3.3 violation"
assert other_prompt_calls[0] == 0, "unrelated user-2 prompt listener fired — RFC §3.3 violation"
def test_close_pool_entry_if_idle_clears_resource_and_prompt_catalogs(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""LRU/TTL eviction (``_close_pool_entry_if_idle``) symmetric
cleanup for resources & prompts on the FULL-DROP path. Bug-pair to
the tools-only cleanup added in Phase 7 round-2.
Deliberately registers NO user-1 TOOL listener: the user-scoped
tool listener is the liveness signal (#836) — resource/prompt
listeners alone do not mark a user live (every real ChatSession
registers the tool listener), so this drives the full drop."""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True, prompts=True),
list_resources_response=_list_resources_payload([_resource_spec("res://r/1")]),
list_prompts_response=_list_prompts_payload([_prompt_spec("p1")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
key = ("user-1", "pool-srv")
res_calls = [0]
prompt_calls = [0]
def _res_cb() -> None:
res_calls[0] += 1
def _prompt_cb() -> None:
prompt_calls[0] += 1
mgr.add_resource_listener(_res_cb, user_id="user-1")
mgr.add_prompt_listener(_prompt_cb, user_id="user-1")
_run_on_loop(loop, mgr._close_pool_entry_if_idle(key))
# Entry fully removed.
assert key not in mgr._user_pool_entries
# Per-user catalogs cleared.
assert "user-1" not in mgr._user_resource_map
assert "user-1" not in mgr._user_prompt_map
# Listeners fired exactly once.
assert res_calls[0] == 1
assert prompt_calls[0] == 1
def test_close_pool_entry_if_idle_cooling_keeps_resources_and_prompts(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""The cooled path retains resources & prompts symmetrically with
tools: a user-1 TOOL listener (the liveness signal, #836) makes
TTL/LRU eviction keep the entry, both per-user maps, and fire no
resource/prompt listener."""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True, prompts=True),
list_resources_response=_list_resources_payload([_resource_spec("res://r/1")]),
list_prompts_response=_list_prompts_payload([_prompt_spec("p1")]),
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
key = ("user-1", "pool-srv")
mgr._oauth_user_server_names = {"pool-srv"}
res_calls = [0]
prompt_calls = [0]
def _res_cb() -> None:
res_calls[0] += 1
def _prompt_cb() -> None:
prompt_calls[0] += 1
# The TOOL listener marks user-1 live; the resource/prompt
# listeners observe (non-)fan-out.
mgr.add_listener(lambda: None, user_id="user-1")
mgr.add_resource_listener(_res_cb, user_id="user-1")
mgr.add_prompt_listener(_prompt_cb, user_id="user-1")
_run_on_loop(loop, mgr._close_pool_entry_if_idle(key))
# Entry cooled: transport gone, catalogs and maps intact.
entry = mgr._user_pool_entries.get(key)
assert entry is not None
assert entry.session is None
assert entry.resources is not None
assert entry.prompts is not None
assert "res://r/1" in (mgr._user_resource_map.get("user-1") or {})
assert "mcp__pool-srv__p1" in (mgr._user_prompt_map.get("user-1") or {})
# No fan-out — nothing changed catalog-wise.
assert res_calls[0] == 0
assert prompt_calls[0] == 0
def test_reconnect_after_eviction_repopulates_resource_and_prompt_catalogs(
running_loop_mgr: Any, monkeypatch: pytest.MonkeyPatch
) -> None:
"""After a session eviction the next ``_connect_one_pool`` REPLACES
the retained resource and prompt catalogs from the SDK — drift
self-corrects for all three catalogs, not just tools (#836).
Bug-class: an extra glue layer would only repopulate tools."""
mgr, loop, _ = running_loop_mgr
handler = _make_jsonrpc_handler(
init_response=_init_response_with_caps(resources=True, prompts=True),
list_resources_seq=[
_list_resources_payload([_resource_spec("res://a")]),
_list_resources_payload([_resource_spec("res://b")]),
],
list_prompts_seq=[
_list_prompts_payload([_prompt_spec("p_a")]),
_list_prompts_payload([_prompt_spec("p_b")]),
],
)
_build_mock_transport_factory(mgr, monkeypatch, handler)
_patch_tcp_probe(mgr, monkeypatch)
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
assert "res://a" in (mgr._user_resource_map.get("user-1") or {})
assert "mcp__pool-srv__p_a" in (mgr._user_prompt_map.get("user-1") or {})
mgr._evict_session(("user-1", "pool-srv"))
# Retention: the stale snapshots keep serving until reconnect.
assert "res://a" in (mgr._user_resource_map.get("user-1") or {})
assert "mcp__pool-srv__p_a" in (mgr._user_prompt_map.get("user-1") or {})
_connect_pool(mgr, loop, user_id="user-1", server_name="pool-srv")
# New catalogs reflect the rotated payload.
assert "res://b" in (mgr._user_resource_map.get("user-1") or {})
assert "res://a" not in (mgr._user_resource_map.get("user-1") or {})
assert "mcp__pool-srv__p_b" in (mgr._user_prompt_map.get("user-1") or {})
assert "mcp__pool-srv__p_a" not in (mgr._user_prompt_map.get("user-1") or {})