diff --git a/src/Grafoscopio/GrafoscopioNotebook.class.st b/src/Grafoscopio/GrafoscopioNotebook.class.st
index f10c8eb..0e2ecc2 100644
--- a/src/Grafoscopio/GrafoscopioNotebook.class.st
+++ b/src/Grafoscopio/GrafoscopioNotebook.class.st
@@ -294,6 +294,16 @@ GrafoscopioNotebook >> initialize [
 
 ]
 
+{ #category : #initialization }
+GrafoscopioNotebook >> initializeDefaultTest [
+	super initialize.
+	self
+		notebook: (GrafoscopioNode new becomeDefaultTestTree);
+		title: ' New test | Grafoscopio notebook'.
+	self notebookContent: self notebook.
+
+]
+
 { #category : #initialization }
 GrafoscopioNotebook >> initializePresenter [
 	tree whenHighlightedItemChanged: [ :item |