public void StateMachine_Trigger_ValidlyTransitions_RaisesAllEventsInCorrectOrder()
{
var calls = new List <string>();
var model = new TrackableStateModel();
var state1 = new State <TrackableStateModel>("s1");
var state2 = new State <TrackableStateModel>("s2");
var trigger = new Trigger("t1");
var transition = new Transition <TrackableStateModel>(trigger, state1, state2);
state1.AddTransition(transition);
model.CurrentState = state1;
var stateMachine = new StateMachine <TrackableStateModel>();
Action <object, TransitionEventArgs <TrackableStateModel> > entering = (s, e) =>
calls.Add(string.Format("entering {0} from {1} on {2}", e.To, e.From, e.Trigger));
Action <object, TransitionEventArgs <TrackableStateModel> > entered = (s, e) =>
calls.Add(string.Format("entered {0} from {1} on {2}", e.To, e.From, e.Trigger));
Action <object, TransitionEventArgs <TrackableStateModel> > exiting = (s, e) =>
calls.Add(string.Format("exiting {0} to {1} on {2}", e.From, e.To, e.Trigger));
Action <object, TransitionEventArgs <TrackableStateModel> > exited = (s, e) =>
calls.Add(string.Format("exited {0} to {1} on {2}", e.From, e.To, e.Trigger));
model.Setting += (s, e) => calls.Add("setting new current state on model");
state1.Entering += (s, e) => entering(s, e);
state1.Entered += (s, e) => entered(s, e);
state1.Exiting += (s, e) => exiting(s, e);
state1.Exited += (s, e) => exited(s, e);
state2.Entering += (s, e) => entering(s, e);
state2.Entered += (s, e) => entered(s, e);
state2.Exiting += (s, e) => exiting(s, e);
state2.Exited += (s, e) => exited(s, e);
stateMachine.Transitioning += (s, e) =>
calls.Add(string.Format("transitioning from {0} to {1} on {2}", e.From, e.To, e.Trigger));
stateMachine.Transitioned += (s, e) =>
calls.Add(string.Format("transitioned from {0} to {1} on {2}", e.From, e.To, e.Trigger));
stateMachine.Trigger(trigger, model);
Assert.Equal(7, calls.Count);
Assert.Equal("transitioning from s1 to s2 on t1", calls[0]);
Assert.Equal("exiting s1 to s2 on t1", calls[1]);
Assert.Equal("entering s2 from s1 on t1", calls[2]);
Assert.Equal("setting new current state on model", calls[3]);
Assert.Equal("exited s1 to s2 on t1", calls[4]);
Assert.Equal("entered s2 from s1 on t1", calls[5]);
Assert.Equal("transitioned from s1 to s2 on t1", calls[6]);
}
public void StateMachine_Trigger_ValidlyTransitions_RaisesAllEventsInCorrectOrder()
{
var calls = new List<string>();
var model = new TrackableStateModel();
var state1 = new State<TrackableStateModel>("s1");
var state2 = new State<TrackableStateModel>("s2");
var trigger = new Trigger("t1");
var transition = new Transition<TrackableStateModel>(trigger, state1, state2);
state1.AddTransition(transition);
model.CurrentState = state1;
var stateMachine = new StateMachine<TrackableStateModel>();
Action<object, TransitionEventArgs<TrackableStateModel>> entering = (s, e) => calls.Add(String.Format("entering {0} from {1} on {2}", e.To, e.From, e.Trigger));
Action<object, TransitionEventArgs<TrackableStateModel>> entered = (s, e) => calls.Add(String.Format("entered {0} from {1} on {2}", e.To, e.From, e.Trigger));
Action<object, TransitionEventArgs<TrackableStateModel>> exiting = (s, e) => calls.Add(String.Format("exiting {0} to {1} on {2}", e.From, e.To, e.Trigger));
Action<object, TransitionEventArgs<TrackableStateModel>> exited = (s, e) => calls.Add(String.Format("exited {0} to {1} on {2}", e.From, e.To, e.Trigger));
model.Setting += (s, e) => calls.Add("setting new current state on model");
state1.Entering += (s, e) => entering(s, e);
state1.Entered += (s, e) => entered(s, e);
state1.Exiting += (s, e) => exiting(s, e);
state1.Exited += (s, e) => exited(s, e);
state2.Entering += (s, e) => entering(s, e);
state2.Entered += (s, e) => entered(s, e);
state2.Exiting += (s, e) => exiting(s, e);
state2.Exited += (s, e) => exited(s, e);
stateMachine.Transitioning += (s, e) => calls.Add(String.Format("transitioning from {0} to {1} on {2}", e.From, e.To, e.Trigger));
stateMachine.Transitioned += (s, e) => calls.Add(String.Format("transitioned from {0} to {1} on {2}", e.From, e.To, e.Trigger));
stateMachine.Trigger(trigger, model);
Assert.Equal(7, calls.Count);
Assert.Equal("transitioning from s1 to s2 on t1", calls[0]);
Assert.Equal("exiting s1 to s2 on t1", calls[1]);
Assert.Equal("entering s2 from s1 on t1", calls[2]);
Assert.Equal("setting new current state on model", calls[3]);
Assert.Equal("exited s1 to s2 on t1", calls[4]);
Assert.Equal("entered s2 from s1 on t1", calls[5]);
Assert.Equal("transitioned from s1 to s2 on t1", calls[6]);
}
