diff --git a/apps/demo/cord-gui/src/test/org/onosproject/cord/gui/model/UrlFilterFunctionTest.java b/apps/demo/cord-gui/src/test/org/onosproject/cord/gui/model/UrlFilterFunctionTest.java
new file mode 100644
index 0000000..6bc75de
--- /dev/null
+++ b/apps/demo/cord-gui/src/test/org/onosproject/cord/gui/model/UrlFilterFunctionTest.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onosproject.cord.gui.model;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Unit tests for {@link UrlFilterFunction}.
+ */
+public class UrlFilterFunctionTest {
+
+    private SubscriberUser user = new SubscriberUser(1, "foo", "fooMAC");
+    private UrlFilterFunction fn;
+
+    @Before
+    public void setUp() {
+        fn = new UrlFilterFunction();
+    }
+
+    @Test
+    public void basic() {
+        assertEquals("wrong enum const count",
+                     6, UrlFilterFunction.Level.values().length);
+    }
+
+    @Test
+    public void memento() {
+        XosFunction.Memento memo = fn.createMemento();
+        assertTrue("wrong class", memo instanceof UrlFilterFunction.UrlFilterMemento);
+        UrlFilterFunction.UrlFilterMemento umemo =
+                (UrlFilterFunction.UrlFilterMemento) memo;
+        assertEquals("wrong default level", "G", umemo.level());
+    }
+
+    @Test
+    public void memoNewLevel() {
+        XosFunction.Memento memo = fn.createMemento();
+        assertTrue("wrong class", memo instanceof UrlFilterFunction.UrlFilterMemento);
+        UrlFilterFunction.UrlFilterMemento umemo =
+                (UrlFilterFunction.UrlFilterMemento) memo;
+        assertEquals("wrong default level", "G", umemo.level());
+        umemo.setLevel(UrlFilterFunction.Level.R);
+        assertEquals("wrong new level", "R", umemo.level());
+    }
+
+    @Test
+    public void applyMemo() {
+        UrlFilterFunction.UrlFilterMemento memo =
+                (UrlFilterFunction.UrlFilterMemento) fn.createMemento();
+        memo.setLevel(UrlFilterFunction.Level.PG_13);
+        user.setMemento(XosFunctionDescriptor.URL_FILTER, memo);
+
+        assertEquals("wrong URL suffix", "url_filter/PG_13", fn.xosUrlApply(user));
+    }
+}