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https://github.com/langchain-ai/langgraph.git
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anyofall
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@@ -1,7 +1,12 @@
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import pytest
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from typing_extensions import TypedDict
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from saf_python_sdk.advanced_graph import AdvancedStateGraph, Context, channel_condition
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from saf_python_sdk.advanced_graph import (
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AdvancedStateGraph,
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Context,
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any_of,
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channel_condition,
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)
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from saf_python_sdk.types import Command, Send
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pytestmark = pytest.mark.anyio
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@@ -77,8 +82,8 @@ async def test_channel_wait_respects_max_m() -> None:
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return Command(update=state, goto=Send("wait_node", None))
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async def wait_node(ctx: Context, _input: None, state: PrimitiveState) -> dict[str, object]:
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event = await ctx.wait_for(channel_condition("events", min=2, max=4))
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values = event["value"]
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result = await ctx.wait_for(channel_condition("events", min=2, max=4))
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values = result.conditions[0].values or []
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assert isinstance(values, list)
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return {"counter": len(values), "logs": values, "done": "ok"}
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@@ -90,3 +95,54 @@ async def test_channel_wait_respects_max_m() -> None:
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assert result["logs"] == ["a", "b", "c"]
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assert result["done"] == "ok"
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async def test_any_of_consumes_all_ready_channels() -> None:
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graph = AdvancedStateGraph(PrimitiveState)
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graph.add_async_channel("alpha", str)
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graph.add_async_channel("beta", str)
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async def start_node(ctx: Context, state: PrimitiveState) -> Command:
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ctx.publish_to_channel("alpha", "a1")
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ctx.publish_to_channel("beta", "b1")
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return Command(update=state, goto=Send("wait_node", None))
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async def wait_node(ctx: Context, _input: None, state: PrimitiveState) -> Command:
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first = await ctx.wait_for(
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any_of(channel_condition("alpha"), channel_condition("beta"))
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)
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assert len(first.conditions) == 2
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assert first.conditions[0].met is True
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assert first.conditions[0].channel_name == "alpha"
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assert first.conditions[0].values == ["a1"]
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assert first.conditions[1].met is True
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assert first.conditions[1].channel_name == "beta"
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assert first.conditions[1].values == ["b1"]
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ctx.publish_to_channel("beta", "b2")
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return Command(
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update={"counter": 1, "logs": ["matched=2"], "done": None},
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goto=Send("verify_node", None),
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)
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async def verify_node(
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ctx: Context, _input: None, state: PrimitiveState
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) -> dict[str, object]:
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second = await ctx.wait_for(channel_condition("beta"))
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values = second.conditions[0].values or []
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return {
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"counter": 2,
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"logs": [*state["logs"], f"beta={values[0]}"],
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"done": "ok",
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}
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graph.add_entry_node(start_node)
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graph.add_node(wait_node)
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graph.add_finish_node(verify_node)
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result = await graph.compile().ainvoke({"counter": 0, "logs": [], "done": None})
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assert result["counter"] == 2
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assert result["logs"] == [
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"matched=2",
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"beta=b2",
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]
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assert result["done"] == "ok"
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