diff --git a/core/api/src/test/java/org/onosproject/store/service/DocumentPathTest.java b/core/api/src/test/java/org/onosproject/store/service/DocumentPathTest.java
new file mode 100644
index 0000000..2c0197b
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/store/service/DocumentPathTest.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2016-present 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.store.service;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Arrays;
+
+import org.junit.Test;
+
+/**
+ * Unit tests for {@link DocumentPath}.
+ */
+public class DocumentPathTest {
+
+    @Test
+    public void testConstruction() {
+        DocumentPath path = DocumentPath.from("root.a.b");
+        assertEquals(path.pathElements(), Arrays.asList("root", "a", "b"));
+        assertEquals(DocumentPath.from("root.a"), path.parent());
+    }
+
+    @Test
+    public void testAncestry() {
+        DocumentPath path1 = DocumentPath.from("root.a.b");
+        DocumentPath path2 = DocumentPath.from("root.a.d");
+        DocumentPath path3 = DocumentPath.from("root.a.b.c");
+        DocumentPath lca = DocumentPath.leastCommonAncestor(Arrays.asList(path1, path2, path3));
+        assertEquals(DocumentPath.from("root.a"), lca);
+        assertTrue(path1.isAncestorOf(path3));
+        assertFalse(path1.isAncestorOf(path2));
+        assertTrue(path3.isDescendentOf(path3));
+        assertTrue(path3.isDescendentOf(path1));
+        assertFalse(path3.isDescendentOf(path2));
+    }
+}