import pytest
from models import Ticket
from dag_engine import TrackDAG, ExecutionEngine

def test_auto_queue_and_step_mode() -> None:
 t1 = Ticket(id="T1", description="Task 1", status="todo", assigned_to="worker")
 t2 = Ticket(id="T2", description="Task 2", status="todo", assigned_to="worker", step_mode=True)
 dag = TrackDAG([t1, t2])
 # Expectation: ExecutionEngine takes auto_queue parameter
 try:
  engine = ExecutionEngine(dag, auto_queue=True)
 except TypeError:
  pytest.fail("ExecutionEngine does not accept auto_queue parameter")
  # Tick 1: T1 should be 'in-progress' because auto_queue=True
  # T2 should remain 'todo' because step_mode=True
 engine.tick()
 assert t1.status == "in_progress"
 assert t2.status == "todo"
 # Approve T2
 try:
  engine.approve_task("T2")
 except AttributeError:
  pytest.fail("ExecutionEngine does not have approve_task method")
 assert t2.status == "in_progress"

if __name__ == "__main__":
 try:
  test_auto_queue_and_step_mode()
  print("Test passed (unexpectedly)")
 except Exception as e:
  print(f"Test failed as expected: {e}")