Custom list types added to force the desired interfaces.

README.md

@@ -2,6 +2,10 @@
 `Recyclable.Collections.TestData` project is a basic open source package for containing test data useful for testing collections like `RecyclableList<T>`, `RecyclableLongList<T>`, `List<T>`, `SortableList<T>`, `PriorityQueue<T>` & similar.
 
 ## Included
-* `EnmerableWithoutCount<T>`
+* `CustomICollection<T>` with `ICollection` interface
+* `CustomICollectionT<T>` with `ICollection<T>` interface
+* `CustomIList<T>` with `IList` interface
+* `CustomIListT<T>` with `IList<T>` interface
+* `CustomIReadOnlyList<T>` with `IReadOnlyList<T>` interface
+* `EnmerableWithoutCount<T>` with `IEnumerable` & `IEnumerable<T>` interfaces
 * `RecyclableLongListTestData`
-* `CustomIList`