// Injects all services.
private void Compose()
{
IocContainer container = new IocContainer();
ServiceLocator.SetLocatorProvider(() => container);
container.RegisterAssembly<ICalculator>(Assembly.GetExecutingAssembly());
container.Register<ICalculatorResolver>(c => new CalculatorResolver(c.GetAllInstances<ICalculator>()));
container.Register<ITaxService>(c => new TaxService(c.Resolve<ICalculatorResolver>()));
container.Register<Cashier>(c => new Cashier(c.Resolve<ITaxService>()));
}