Files
langgraph/libs/sdk-py/tests/integration/test_factory_graph.py
Elior Nataf LackritzandGitHub ea5f9cc9fb chore: enforce PLC0415 in tests for the remaining packages (#8547)
Follow-up to #8540, which turned on `PLC0415` (import-outside-top-level)
for checkpoint-postgres and checkpoint-sqlite. This does the remaining
six packages: checkpoint, checkpoint-conformance, langgraph, prebuilt,
cli, sdk-py.

Scoped to tests, per @sydney-runkle's call on #8540: library code is
exempted with `per-file-ignores`, since it still has deferred imports
nobody has reviewed and mixing that in would make this hard to read.

## What changed

Function-level imports across 56 test files moved to module level. Nine
could not move and carry an explicit `# noqa: PLC0415` with a reason:

| File | Why it stays local |
|---|---|
| `libs/langgraph/tests/test_deprecation.py` (4) | the import has to run
inside `pytest.warns` for the warning to be observed |
| `libs/langgraph/tests/test_serde_allowlist.py` | try/except guard,
skips when langchain_core is absent |
| `libs/langgraph/tests/test_delta_channel_benchmark.py` | optional
psycopg probe |
| `libs/checkpoint/tests/test_conformance_delta.py` (3) | protected by a
module-level `pytest.importorskip`; hoisting past the guard turns a skip
into a collection error |

That last one is the trap: an import moved above `pytest.importorskip`
silently defeats the guard. I hit it locally and it turned the skip into
a `ModuleNotFoundError` at collection. Every file with an `importorskip`
or `except ImportError` was checked by hand for this.

## Verification

`make lint` and `make test` in each of the six:

| Package | Tests |
|---|---|
| checkpoint | 156 passed, 17 skipped |
| checkpoint-conformance | 1 passed |
| langgraph | 1968 passed, 4 skipped |
| prebuilt | 284 passed |
| cli | 336 passed |
| sdk-py | 493 passed |

Also confirmed the rule actually fires: a throwaway test file with a
function-level import is flagged in all six packages, and the source
exemption holds.
2026-08-07 09:40:18 -04:00

67 lines
2.2 KiB
Python

"""Factory-graph execution regression test.
Unlike the other integration graphs (all pre-compiled), `factory_agent` is a
graph *factory*, so executing a run against it drives the server's graph-factory
code path. That path regressed in langgraph 1.2.3: a leaked `__pregel_runtime`
(an SDK `_ExecutionRuntime`) survived `ensure_config`'s configurable-merge into
`astream`, which then raised
`AttributeError: '_ExecutionRuntime' object has no attribute 'control'`. A
successful `runs.wait` here proves the factory path executes end to end.
"""
from __future__ import annotations
import pytest
from langgraph_sdk._async.http import HttpClient
from langgraph_sdk._async.runs import RunsClient
from langgraph_sdk._sync.http import SyncHttpClient
from langgraph_sdk._sync.runs import SyncRunsClient
from .conftest import FACTORY_ASSISTANT_ID
pytestmark = pytest.mark.integration
def _async_runs(raw):
return RunsClient(HttpClient(raw))
def _sync_runs(raw):
return SyncRunsClient(SyncHttpClient(raw))
async def test_factory_graph_executes_async(async_threads) -> None:
"""A run against a factory graph completes and echoes the input."""
threads, raw = async_threads
runs = _async_runs(raw)
thread = await threads.create(
metadata={"suite": "integration", "label": "factory-async"}
)
tid = thread["thread_id"]
try:
result = await runs.wait(tid, FACTORY_ASSISTANT_ID, input={"text": "hi"})
assert isinstance(result, dict), result
assert result.get("text") == "hi echoed"
assert result.get("access_context") == "threads.create_run"
assert result.get("is_for_execution") is True
finally:
await threads.delete(tid)
def test_factory_graph_executes_sync(sync_threads) -> None:
threads, raw = sync_threads
runs = _sync_runs(raw)
thread = threads.create(metadata={"suite": "integration", "label": "factory-sync"})
tid = thread["thread_id"]
try:
result = runs.wait(tid, FACTORY_ASSISTANT_ID, input={"text": "hi"})
assert isinstance(result, dict), result
assert result.get("text") == "hi echoed"
assert result.get("access_context") == "threads.create_run"
assert result.get("is_for_execution") is True
finally:
threads.delete(tid)