diff --git a/server-rs/crates/spacetime-module/src/editor_project_storage.rs b/server-rs/crates/spacetime-module/src/editor_project_storage.rs
index 2bc6ad74b..093125956 100644
--- a/server-rs/crates/spacetime-module/src/editor_project_storage.rs
+++ b/server-rs/crates/spacetime-module/src/editor_project_storage.rs
@@ -9708,7 +9708,14 @@ mod tests {
             .expect("shared-resource layout should serialize");
         let rebuilt_value: JsonValue =
             serde_json::from_str(&rebuilt).expect("rebuilt layout should be valid JSON");
-        assert_eq!(rebuilt_value.as_array().map(Vec::len), Some(2));
+        let rebuilt_layer = rebuilt_value
+            .as_array()
+            .expect("rebuilt layout should be an array");
+        assert_eq!(rebuilt_layer.len(), 2);
+        assert_eq!(rebuilt_layer[0]["layerId"], "layer-1");
+        assert_eq!(rebuilt_layer[0]["resourceId"], "resource-shared");
+        assert_eq!(rebuilt_layer[1]["layerId"], "layer-2");
+        assert_eq!(rebuilt_layer[1]["resourceId"], "resource-shared");
 
         let shared_integrity = canvas_layout_integrity(shared).expect("shared integrity");
         let single_integrity =