public void Should_register_service_with_singleton_lifestyle()
{
var target = CreateSUT();
target.Register(
Requested.Service<IParameterlessService>()
.IsImplementedBy<ParameterlessServiceImpl>()
.LifeStyle.IsSingelton()
);
var first = target.Resolve<IParameterlessService>();
var second = target.Resolve<IParameterlessService>();
Assert.That(first, Is.Not.Null);
Assert.That(first, Is.SameAs(second));
}