diff --git a/testdata/dot-ref/disable.dot b/testdata/dot-ref/disable.dot
new file mode 100644
index 0000000..078d273
--- /dev/null
+++ b/testdata/dot-ref/disable.dot
@@ -0,0 +1,17 @@
+#!/usr/local/bin/dot
+#
+# Class diagram 
+# Generated by UmlGraph version 4.1 (http://www.spinellis.gr/sw/umlgraph)
+#
+
+digraph G {
+	edge [fontname="Helvetica",fontsize=10,labelfontname="Helvetica",labelfontsize=10];
+	node [fontname="Helvetica",fontsize=10,shape=record];
+	// Person1
+	c44 [label="{Person1\n|~ address : String\l~ name : String\l|}", fontname="Helvetica", fontcolor="black", fontsize=10.0];
+	// Person2
+	c45 [label="{Person2\n||~ displayName() : String\l}", fontname="Helvetica", fontcolor="black", fontsize=10.0];
+	// Person3
+	c46 [label="{Person3\n|address : Address\lname : String\l|displayName() : String\l}", fontname="Helvetica", fontcolor="black", fontsize=10.0];
+}
+
diff --git a/testdata/java/disable.java b/testdata/java/disable.java
new file mode 100644
index 0000000..c3b2c16
--- /dev/null
+++ b/testdata/java/disable.java
@@ -0,0 +1,40 @@
+// $Id$
+
+/**
+ * Locally disable an option (test)
+ *
+ * @opt operations 
+ * @opt attributes 
+ * @opt types 
+ * @opt visibility 
+ * @hidden
+ */
+class UMLOptions {}
+
+/**
+ * @opt !operations
+ */
+class Person1 {
+    String address;
+    String name;
+    String displayName();
+}
+
+/**
+ * @opt !attributes
+ */
+class Person2 {
+    Address address;
+    String name;
+    String displayName();
+}
+
+/**
+ * @opt !visibility
+ */
+class Person3 {
+    Address address;
+    String name;
+    String displayName();
+}
+