diff --git a/test/fixtures/presentation-mount/PresentationRuntime.qx b/test/fixtures/presentation-mount/PresentationRuntime.qx
index 37137bb..d00e076 100644
--- a/test/fixtures/presentation-mount/PresentationRuntime.qx
+++ b/test/fixtures/presentation-mount/PresentationRuntime.qx
@@ -6,6 +6,9 @@ import interface PresentationMount;
 import interface StateFactory;
 external atom PresentationMountRecord id "presentation-mount-record";
 package PresentationRuntime id "presentation-runtime" revision "presentation-runtime@1" {
+  function createReaderState id "presentation-runtime:create-reader-state" : record {occurrence:string;parent:optional<interface-ref<PresentationState>>;} -> interface-ref<ReaderNavigation> execution transaction targets [browser,server] requires {
+    creation navigation id "navigation" : ReaderNavigationRecord input record {occurrence:string;parent:optional<interface-ref<PresentationState>>;};
+  };
   function createPresentationMount id "presentation-runtime:create" : unit -> interface-ref<PresentationMount> execution transaction targets [browser,server] requires {
     creation presentationMount id "presentationMount" : PresentationMountRecord input unit;
   };
diff --git a/test/fixtures/presentation-mount/workspace.qx b/test/fixtures/presentation-mount/workspace.qx
index 41d37c6..18ff3fe 100644
--- a/test/fixtures/presentation-mount/workspace.qx
+++ b/test/fixtures/presentation-mount/workspace.qx
@@ -11,6 +11,7 @@ workspace Example id "presentation-example" revision "presentation-example@1" co
   atom PresentationMountRecord id "presentation-mount-record";
   atom Library id "library";
   atom OtherLibrary id "other-library";
+  atom PublicLibrary id "public-library";
   atom Document id "document";
   atom ReaderNavigationRecord id "reader-navigation-record";
   atom DocumentNavigationRecord id "document-navigation-record";
@@ -85,4 +86,10 @@ workspace Example id "presentation-example" revision "presentation-example@1" co
     };
   }
   conform OtherLibrary as Presentation<atom ReaderNavigationRecord> id "other-library:presentation" {}
+  conform PublicLibrary as StateFactory<interface ReaderNavigation> id "public-reader:factory" {
+    bind create.call to package PresentationRuntime.createReaderState with {
+      navigation to creation ReaderNavigationRecord with {PresentationState from input;};
+    };
+  }
+  conform PublicLibrary as Presentation<interface ReaderNavigation> id "public-library:presentation" {}
 }