public void Let_Remove_States_When_OnBeforeStateChanges_Event_Is_Being_Executed_Except_From_The_Involved_States()
{
_stateMachine.AddState(_stateId1, _stateObject1);
_stateMachine.AddState(_stateId2, _stateObject2);
_stateMachine.AddState(_stateId3, _stateObject3);
var transition = NewTransition(_stateId1, _trigger1, _stateId2);
_stateMachine.AddTransition(transition);
_onBeforeStateChangesSubscriptor1.When(obj => obj.Invoke(Arg.Any <TState>(), Arg.Any <TTrigger>(), Arg.Any <TState>()))
.Do(_ =>
{
_stateMachine.RemoveState(_stateId3);
_stateMachine.RemoveState(_stateId1);
});
_stateMachine.OnBeforeStateChanges += _onBeforeStateChangesSubscriptor1;
_stateMachine.Start();
var exception = Assert.Throws <ProtectedStateException>(() => _stateMachine.Trigger(_trigger1));
Assert.That(exception.StateId.Equals(_stateId1), "Exception was thrown when tried to remove stateId1 (previous state)");
}