public void GetItemUrl_ItemId_UrlReceived()
{
var urlHelper = Substitute.For <UrlHelper>();
_routeNameProvider = Substitute.For <IRouteNameProvider>();
_itemUrlGenerator = new UrlGenerator(urlHelper, _routeNameProvider);
_routeNameProvider.GetRouteName().Returns(RouteConfig.DefaultApi);
urlHelper.Route(RouteConfig.DefaultApi, Arg.Is <object>(o => ContainsCorrectId(o))).Returns($"api/{FakeId}/v2.1/itemlist");
var id = FakeId;
var requestedUrl = $"api/{FakeId}/v2.1/itemlist";
var receivedUrl = _itemUrlGenerator.GetItemUrl(id);
Assert.That(receivedUrl, Is.EqualTo(requestedUrl));
}