DLGTestHarness API Reference

Methods

Method	Description
`test_node(handler_fn, state_dict, *, config=None) -> dict`	Sync wrapper — runs single node, returns state delta.
`atest_node(handler_fn, state_dict, *, config=None) -> dict`	Async version.
`assert_state_delta(result, expected) -> None`	Asserts result contains expected keys/values.

Example

from dlg import DLGTestHarness

def my_node(state):
    return {"result": state["message"].upper()}

result = DLGTestHarness.test_node(my_node, {"message": "hello", "result": ""})
DLGTestHarness.assert_state_delta(result, {"result": "HELLO"})