From 1629794658f3bba0b9190de7e67ce6588474afea Mon Sep 17 00:00:00 2001
From: William FH <13333726+hinthornw@users.noreply.github.com>
Date: Wed, 8 Apr 2026 18:22:18 -0700
Subject: [PATCH] chore: update conformance lint (#7459)

Co-authored-by: Will Fu-Hinthorn <will@langchain.dev>
---
 .../checkpoint/conformance/spec/test_list.py  |  1 -
 libs/checkpoint-conformance/uv.lock           |  2 +-
 libs/langgraph/tests/test_pregel.py           | 24 ++++++++++---------
 3 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/libs/checkpoint-conformance/langgraph/checkpoint/conformance/spec/test_list.py b/libs/checkpoint-conformance/langgraph/checkpoint/conformance/spec/test_list.py
index fd98ba652..9f00070cf 100644
--- a/libs/checkpoint-conformance/langgraph/checkpoint/conformance/spec/test_list.py
+++ b/libs/checkpoint-conformance/langgraph/checkpoint/conformance/spec/test_list.py
@@ -339,7 +339,6 @@ async def test_list_metadata_custom_keys(
     assert results[0].metadata["run_id"] == "run-abc"
 
 
-
 ALL_LIST_TESTS = [
     test_list_all,
     test_list_by_thread,
diff --git a/libs/checkpoint-conformance/uv.lock b/libs/checkpoint-conformance/uv.lock
index 860d542fd..cb5e062bc 100644
--- a/libs/checkpoint-conformance/uv.lock
+++ b/libs/checkpoint-conformance/uv.lock
@@ -263,7 +263,7 @@ wheels = [
 
 [[package]]
 name = "langgraph-checkpoint-conformance"
-version = "0.0.1"
+version = "0.0.2"
 source = { editable = "." }
 dependencies = [
     { name = "langgraph-checkpoint" },
diff --git a/libs/langgraph/tests/test_pregel.py b/libs/langgraph/tests/test_pregel.py
index d6bfc95cc..95afe3e6e 100644
--- a/libs/langgraph/tests/test_pregel.py
+++ b/libs/langgraph/tests/test_pregel.py
@@ -1329,20 +1329,22 @@ def test_imp_nested(
     }
 
     thread1 = {"configurable": {"thread_id": "1"}}
-    assert [*graph.stream([0, 1], thread1, durability=durability)] == [
-        {"submapper": "0"},
+    result = [*graph.stream([0, 1], thread1, durability=durability)]
+    # nested tasks run concurrently so output order is non-deterministic
+    assert sorted(result[:-1], key=lambda d: str(d)) == [
         {"mapper": "00"},
-        {"submapper": "1"},
         {"mapper": "11"},
-        {
-            "__interrupt__": (
-                Interrupt(
-                    value="question",
-                    id=AnyStr(),
-                ),
-            )
-        },
+        {"submapper": "0"},
+        {"submapper": "1"},
     ]
+    assert result[-1] == {
+        "__interrupt__": (
+            Interrupt(
+                value="question",
+                id=AnyStr(),
+            ),
+        )
+    }
 
     assert graph.invoke(Command(resume="answer"), thread1, durability=durability) == [
         "00answera",