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Fix issue when drawing graphs w repeat conditions

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Nuno Campos
2024-04-22 09:53:14 -07:00
parent de9c0786f5
commit 85bdc8bdfa
3 changed files with 49 additions and 4 deletions
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tests/__snapshots__/test_pregel.ambr
+2 -2
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@@ -1657,7 +1657,7 @@
'''
# ---
# name: test_prebuilt_chat
'{"title": "LangGraphInput", "$ref": "#/definitions/AgentState", "definitions": {"BaseMessage": {"title": "BaseMessage", "description": "Base abstract Message class.\\n\\nMessages are the inputs and outputs of ChatModels.", "type": "object", "properties": {"content": {"title": "Content", "anyOf": [{"type": "string"}, {"type": "array", "items": {"anyOf": [{"type": "string"}, {"type": "object"}]}}]}, "additional_kwargs": {"title": "Additional Kwargs", "type": "object"}, "response_metadata": {"title": "Response Metadata", "type": "object"}, "type": {"title": "Type", "type": "string"}, "name": {"title": "Name", "type": "string"}, "id": {"title": "Id", "type": "string"}}, "required": ["content", "type"]}, "AgentState": {"title": "AgentState", "type": "object", "properties": {"messages": {"title": "Messages", "type": "array", "items": {"$ref": "#/definitions/BaseMessage"}}}, "required": ["messages"]}}}'
'{"title": "LangGraphInput", "$ref": "#/definitions/AgentState", "definitions": {"BaseMessage": {"title": "BaseMessage", "description": "Base abstract Message class.\\n\\nMessages are the inputs and outputs of ChatModels.", "type": "object", "properties": {"content": {"title": "Content", "anyOf": [{"type": "string"}, {"type": "array", "items": {"anyOf": [{"type": "string"}, {"type": "object"}]}}]}, "additional_kwargs": {"title": "Additional Kwargs", "type": "object"}, "response_metadata": {"title": "Response Metadata", "type": "object"}, "type": {"title": "Type", "type": "string"}, "name": {"title": "Name", "type": "string"}, "id": {"title": "Id", "type": "string"}}, "required": ["content", "type"]}, "AgentState": {"title": "AgentState", "type": "object", "properties": {"messages": {"title": "Messages", "type": "array", "items": {"$ref": "#/definitions/BaseMessage"}}, "is_last_step": {"title": "Is Last Step", "type": "boolean"}}, "required": ["messages", "is_last_step"]}}}'
# ---
# name: test_prebuilt_chat.1
'{"title": "LangGraphOutput", "type": "object", "properties": {"messages": {"title": "Messages", "type": "array", "items": {"$ref": "#/definitions/BaseMessage"}}}, "definitions": {"BaseMessage": {"title": "BaseMessage", "description": "Base abstract Message class.\\n\\nMessages are the inputs and outputs of ChatModels.", "type": "object", "properties": {"content": {"title": "Content", "anyOf": [{"type": "string"}, {"type": "array", "items": {"anyOf": [{"type": "string"}, {"type": "object"}]}}]}, "additional_kwargs": {"title": "Additional Kwargs", "type": "object"}, "response_metadata": {"title": "Response Metadata", "type": "object"}, "type": {"title": "Type", "type": "string"}, "name": {"title": "Name", "type": "string"}, "id": {"title": "Id", "type": "string"}}, "required": ["content", "type"]}}}'
@@ -1771,7 +1771,7 @@
'''
# ---
# name: test_prebuilt_tool_chat
'{"title": "LangGraphInput", "$ref": "#/definitions/AgentState", "definitions": {"BaseMessage": {"title": "BaseMessage", "description": "Base abstract Message class.\\n\\nMessages are the inputs and outputs of ChatModels.", "type": "object", "properties": {"content": {"title": "Content", "anyOf": [{"type": "string"}, {"type": "array", "items": {"anyOf": [{"type": "string"}, {"type": "object"}]}}]}, "additional_kwargs": {"title": "Additional Kwargs", "type": "object"}, "response_metadata": {"title": "Response Metadata", "type": "object"}, "type": {"title": "Type", "type": "string"}, "name": {"title": "Name", "type": "string"}, "id": {"title": "Id", "type": "string"}}, "required": ["content", "type"]}, "AgentState": {"title": "AgentState", "type": "object", "properties": {"messages": {"title": "Messages", "type": "array", "items": {"$ref": "#/definitions/BaseMessage"}}}, "required": ["messages"]}}}'
'{"title": "LangGraphInput", "$ref": "#/definitions/AgentState", "definitions": {"BaseMessage": {"title": "BaseMessage", "description": "Base abstract Message class.\\n\\nMessages are the inputs and outputs of ChatModels.", "type": "object", "properties": {"content": {"title": "Content", "anyOf": [{"type": "string"}, {"type": "array", "items": {"anyOf": [{"type": "string"}, {"type": "object"}]}}]}, "additional_kwargs": {"title": "Additional Kwargs", "type": "object"}, "response_metadata": {"title": "Response Metadata", "type": "object"}, "type": {"title": "Type", "type": "string"}, "name": {"title": "Name", "type": "string"}, "id": {"title": "Id", "type": "string"}}, "required": ["content", "type"]}, "AgentState": {"title": "AgentState", "type": "object", "properties": {"messages": {"title": "Messages", "type": "array", "items": {"$ref": "#/definitions/BaseMessage"}}, "is_last_step": {"title": "Is Last Step", "type": "boolean"}}, "required": ["messages", "is_last_step"]}}}'
# ---
# name: test_prebuilt_tool_chat.1
'{"title": "LangGraphOutput", "type": "object", "properties": {"messages": {"title": "Messages", "type": "array", "items": {"$ref": "#/definitions/BaseMessage"}}}, "definitions": {"BaseMessage": {"title": "BaseMessage", "description": "Base abstract Message class.\\n\\nMessages are the inputs and outputs of ChatModels.", "type": "object", "properties": {"content": {"title": "Content", "anyOf": [{"type": "string"}, {"type": "array", "items": {"anyOf": [{"type": "string"}, {"type": "object"}]}}]}, "additional_kwargs": {"title": "Additional Kwargs", "type": "object"}, "response_metadata": {"title": "Response Metadata", "type": "object"}, "type": {"title": "Type", "type": "string"}, "name": {"title": "Name", "type": "string"}, "id": {"title": "Id", "type": "string"}}, "required": ["content", "type"]}}}'
tests/test_pregel.py
+39
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@@ -3534,3 +3534,42 @@ def test_nested_graph(snapshot: SnapshotAssertion) -> None:
assert app.invoke({"my_key": "my value"}) == {
"my_key": "my value there and back again"
}
def test_repeat_condition(snapshot: SnapshotAssertion) -> None:
class AgentState(TypedDict):
hello: str
def router(state: AgentState) -> str:
return "hmm"
workflow = StateGraph(AgentState)
workflow.add_node("Researcher", lambda x: x)
workflow.add_node("Chart Generator", lambda x: x)
workflow.add_node("Call Tool", lambda x: x)
workflow.add_conditional_edges(
"Researcher",
router,
{"continue": "Chart Generator", "call_tool": "Call Tool", "end": END},
)
workflow.add_conditional_edges(
"Chart Generator",
router,
{"continue": "Researcher", "call_tool": "Call Tool", "end": END},
)
workflow.add_conditional_edges(
"Call Tool",
# Each agent node updates the 'sender' field
# the tool calling node does not, meaning
# this edge will route back to the original agent
# who invoked the tool
lambda x: x["sender"],
{
"Researcher": "Researcher",
"Chart Generator": "Chart Generator",
},
)
workflow.set_entry_point("Researcher")
app = workflow.compile()
assert app.get_graph().draw_mermaid(with_styles=False) == snapshot