Mult. Calls to Isolate.WhenCalled => Array[String]

Hi,

I'm pretty new to TypeMock so bear with me if i'm doing some crappy stuff :)

here is what i'm doing to Fake some SharePoint Objects :

      private Microsoft.SharePoint.SPWeb FakeSite_RootWeb() {
            SPWeb fakeWeb = Isolate.Fake.Instance<SPWeb>(Members.ReturnRecursiveFakes);
            Isolate.WhenCalled(() => fakeWeb.Title).WillReturn("Intranet");
            Isolate.WhenCalled(() => fakeWeb.Description).WillReturn("Description Intranet");
            Isolate.WhenCalled(() => fakeWeb.Language).WillReturn(1036);
            Isolate.WhenCalled(() => fakeWeb.Lists).WillReturn(this.FakeSite_RootWeb_Lists());
            return fakeWeb;
        }
        
        private Microsoft.SharePoint.SPListCollection FakeSite_RootWeb_Lists() {
            SPListCollection fakeListCollection = Isolate.Fake.Instance<SPListCollection>(Members.ReturnRecursiveFakes);
            Isolate.WhenCalled(() => fakeListCollection[0]).WillReturn(this.FakeSite_RootWeb_Lists_QuizzCategories());
            string FakeSite_rootweb_lists_quizzcategories = "Quizz Catégories";
            Isolate.WhenCalled(() => fakeListCollection[FakeSite_rootweb_lists_quizzcategories]).WillReturn(fakeListCollection[0]);
            Isolate.WhenCalled(() => fakeListCollection[1]).WillReturn(this.FakeSite_RootWeb_Lists_QuizzAnimaux());
            string FakeSite_rootweb_lists_quizzanimaux = "Quizz Animaux";
            Isolate.WhenCalled(() => fakeListCollection[FakeSite_rootweb_lists_quizzanimaux]).WillReturn(fakeListCollection[1]);
            return fakeListCollection;
        }

this.FakeSite_RootWeb_Lists_QuizzCategories() return a SPList with 3 items
this.FakeSite_RootWeb_Lists_QuizzAnimaux() return a SPList with 2 items

I want to be able to get each SPList in SPListCollection via index or/and via name.

but as soon as i'm using Isolate.WhenCalled(() => fakeListCollection["Any string, even Empty"].... it will get the lastest fakeList i assigned to it.

Am i doing something wrong ?

Should i use WillReturnCollectionValuesOf somewhere (like in Isolate.WhenCalled(() => fakeWeb.Lists).WillReturn(this.FakeSite_RootWeb_Lists())) ?