diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/ospfpacket/types/LsUpdateTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/ospfpacket/types/LsUpdateTest.java
new file mode 100644
index 0000000..8d48099
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/ospfpacket/types/LsUpdateTest.java
@@ -0,0 +1,345 @@
+/*
+ * Copyright 2016 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.ospf.protocol.ospfpacket.types;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.Ip4Address;
+import org.onosproject.ospf.controller.OspfLsa;
+import org.onosproject.ospf.protocol.lsa.LsaHeader;
+import org.onosproject.ospf.protocol.lsa.OpaqueLsaHeader;
+import org.onosproject.ospf.protocol.lsa.types.AsbrSummaryLsa;
+import org.onosproject.ospf.protocol.lsa.types.ExternalLsa;
+import org.onosproject.ospf.protocol.lsa.types.NetworkLsa;
+import org.onosproject.ospf.protocol.lsa.types.OpaqueLsa10;
+import org.onosproject.ospf.protocol.lsa.types.OpaqueLsa11;
+import org.onosproject.ospf.protocol.lsa.types.OpaqueLsa9;
+import org.onosproject.ospf.protocol.lsa.types.RouterLsa;
+import org.onosproject.ospf.protocol.lsa.types.SummaryLsa;
+import org.onosproject.ospf.protocol.ospfpacket.OspfPacketHeader;
+import org.onosproject.ospf.protocol.util.OspfPacketType;
+
+import java.util.List;
+import java.util.Vector;
+
+import static org.hamcrest.CoreMatchers.*;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+/**
+ * Unit test class for LsUpdate.
+ */
+public class LsUpdateTest {
+
+    private final byte[] packet1 = {0, 0, 0, 2, 0, 10, 2, 1, 7, 7, 7, 7, 7, 7, 7, 7,
+            -128, 0, 0, 2, 46, -126, 0, 48, 0, 0, 0, 2, 1, 1, 1, 1, 10, 10, 10, 7, 1,
+            0, 0, 10, 10, 10, 10, 0, -1, -1, -1, 0, 3, 0, 0, 10, 0, 10, 66, 10, 1, 0,
+            0, 1, 7, 7, 7, 7, -128, 0, 0, 1, -64, 79, 0, 116, 0, 1, 0, 4, 0, 0, 0, 0,
+            0, 2, 0, 84, 0, 1, 0, 1, 1, 0, 0, 0, 0, 2, 0, 4, 10, 10, 10, 0, 0, 5, 0,
+            4, 0, 0, 0, 0, 0, 6, 0, 4, 73, -104, -106, -128, 0, 7, 0, 4, 73, -104, -106,
+            -128, 0, 8, 0, 32, 73, -104, -106, -128, 73, -104, -106, -128, 73, -104, -106,
+            -128, 73, -104, -106, -128, 73, -104, -106, -128, 73, -104, -106, -128, 73,
+            -104, -106, -128, 73, -104, -106, -128, 0, 9, 0, 4, 0, 0, 0, 0};
+    private final byte[] packet3 = {0, 0, 0, 1, 0, 100, 2, 10, 1, 0, 0, 1, 9, 9, 9, 9,
+            -128, 0, 0, 1, -7, 62, 0, -124, 0, 2, 0, 108, 0, 1, 0, 1, 2, 0, 0, 0, 0, 2,
+            0, 4, -64, -88, 7, -91, 0, 3, 0, 4, -64, -88, 7, -91, 0, 4, 0, 4, 0, 0, 0,
+            0, 0, 5, 0, 4, 0, 0, 0, 1, 0, 6, 0, 4, 0, 0, 0, 0, 0, 7, 0, 4, 0, 0, 0, 0,
+            0, 8, 0, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 4, 0, 0, 0, 0, -128, 2, 0, 4, 0,
+            0, 0, 1};
+    private final byte[] packet2 = {0, 0,
+            0, 1, 0, 1, 2, 2, -64, -88,
+            -86, 8, -64, -88, -86, 8, -128, 0, 0, 1, 55, -73, 0, 32, -1, -1, -1, 0, -64,
+            -88, -86, 3, -64, -88, -86, 8};
+    private final byte[] packet4 = {0, 0, 0, 1, 0, 100, 2, 9, 1, 0, 0, 1, 9, 9, 9, 9, -128,
+            0, 0, 1, -7, 62, 0, -124, 0, 2, 0, 108, 0, 1, 0, 1, 2, 0, 0, 0, 0, 2, 0, 4, -64,
+            -88, 7, -91, 0, 3, 0, 4, -64, -88, 7, -91, 0, 4, 0, 4, 0, 0, 0, 0, 0, 5, 0, 4, 0,
+            0, 0, 1, 0, 6, 0, 4, 0, 0, 0, 0, 0, 7, 0, 4, 0, 0, 0, 0, 0, 8, 0, 32, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            0, 0, 9, 0, 4, 0, 0, 0, 0, -128, 2, 0, 4, 0, 0, 0, 1};
+
+    private final byte[] packet5 = {0, 0, 0, 1, 0, 100, 2, 11, 1, 0, 0, 1, 9, 9, 9, 9, -128, 0,
+            0, 1, -7, 62, 0, -124, 0, 2, 0, 108, 0, 1, 0, 1, 2, 0, 0, 0, 0, 2, 0, 4, -64, -88,
+            7, -91, 0, 3, 0, 4, -64, -88, 7, -91, 0, 4, 0, 4, 0, 0, 0, 0, 0, 5, 0, 4, 0, 0, 0,
+            1, 0, 6, 0, 4, 0, 0, 0, 0, 0, 7, 0, 4, 0, 0, 0, 0, 0, 8, 0, 32, 0, 0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            9, 0, 4, 0, 0, 0, 0, -128, 2, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet6 = {0, 0, 0, 1, 0, 100, 2, 3, 1, 0, 0, 1, 9, 9, 9, 9, -128,
+            0, 0, 1, -7, 62, 0, -124, 0, 2, 0, 108, 0, 1, 0, 1, 2, 0, 0, 0, 0, 2, 0, 4, -64,
+            -88, 7, -91, 0, 3, 0, 4, -64, -88, 7, -91, 0, 4, 0, 4, 0, 0, 0, 0, 0, 5, 0, 4,
+            0, 0, 0, 1, 0, 6, 0, 4, 0, 0, 0, 0, 0, 7, 0, 4, 0, 0, 0, 0, 0, 8, 0, 32, 0, 0,
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 9, 0, 4, 0, 0, 0, 0, -128, 2, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet7 = {0, 0, 0, 1, 0, 100, 2, 4, 1, 0, 0, 1, 9, 9, 9, 9, -128,
+            0, 0, 1, -7, 62, 0, -124, 0, 2, 0, 108, 0, 1, 0, 1, 2, 0, 0, 0, 0, 2, 0, 4, -64,
+            -88, 7, -91, 0, 3, 0, 4, -64, -88, 7, -91, 0, 4, 0, 4, 0, 0, 0, 0, 0, 5, 0, 4, 0,
+            0, 0, 1, 0, 6, 0, 4, 0, 0, 0, 0, 0, 7, 0, 4, 0, 0, 0, 0, 0, 8, 0, 32, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            0, 9, 0, 4, 0, 0, 0, 0, -128, 2, 0, 4, 0, 0, 0, 1};
+
+    private final byte[] packet8 = {0, 0, 0, 2, 1, 4, 2, 1, 5, 5, 5, 5, 5, 5, 5, 5, -128, 0, 0,
+            4, -39, -84, 0, 36, 1, 0, 0, 1, -64, -88, 7, 90, -64, -88, 7, 92, 2, 0, 0, 10, 1, 4,
+            2, 4, -34, -34, -34, -34, 5, 5, 5, 5, -128, 0, 0, 1, 31, -93, 0, 28, 0, 0, 0, 0, 0,
+            0, 0, 10};
+    private LsUpdate lsUpdate;
+    private RouterLsa ospflsa;
+    private NetworkLsa ospflsa1;
+    private SummaryLsa ospflsa2;
+    private AsbrSummaryLsa ospflsa3;
+    private ExternalLsa ospflsa4;
+    private Vector<OspfLsa> listLSA = new Vector();
+    private List lsa;
+    private int result;
+    private OspfPacketType ospfMessageType;
+    private OspfPacketHeader ospfPacketHeader;
+    private byte[] result1;
+    private ChannelBuffer channelBuffer;
+    private OpaqueLsa10 opaqueLsa10;
+    private OpaqueLsa9 opaqueLsa9;
+    private OpaqueLsa11 opaqueLsa11;
+
+    @Before
+    public void setUp() throws Exception {
+        lsUpdate = new LsUpdate();
+        ospflsa = new RouterLsa();
+        lsUpdate.setAuthType(1);
+        lsUpdate.setOspftype(2);
+        lsUpdate.setRouterId(Ip4Address.valueOf("10.226.165.164"));
+        lsUpdate.setAreaId(Ip4Address.valueOf("10.226.165.100"));
+        lsUpdate.setChecksum(201);
+        lsUpdate.setAuthentication(2);
+        lsUpdate.setOspfPacLength(48);
+        lsUpdate.setOspfVer(2);
+        ospflsa.setLsType(1);
+        lsUpdate.addLsa(ospflsa);
+        ospflsa1 = new NetworkLsa();
+        ospflsa1.setNetworkMask(Ip4Address.valueOf("10.226.165.164"));
+        ospflsa1.setLsType(2);
+        lsUpdate.addLsa(ospflsa1);
+        ospflsa2 = new SummaryLsa(new LsaHeader());
+        ospflsa2.setLsType(3);
+        lsUpdate.addLsa(ospflsa2);
+        ospflsa3 = new AsbrSummaryLsa(new LsaHeader());
+        ospflsa3.setNetworkMask(Ip4Address.valueOf("10.226.165.164"));
+        ospflsa3.setLsType(4);
+        lsUpdate.addLsa(ospflsa3);
+        ospflsa4 = new ExternalLsa(new LsaHeader());
+        ospflsa4.setLsType(5);
+        lsUpdate.addLsa(ospflsa4);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        lsUpdate = null;
+        ospflsa = null;
+        ospflsa1 = null;
+        ospflsa2 = null;
+        ospflsa3 = null;
+        ospflsa4 = null;
+        listLSA.clear();
+        lsa = null;
+        ospfMessageType = null;
+        ospfPacketHeader = null;
+        result1 = null;
+        channelBuffer = null;
+        opaqueLsa9 = null;
+        opaqueLsa10 = null;
+        opaqueLsa11 = null;
+    }
+
+    /**
+     * Tests getLsaList() getter method.
+     */
+    @Test
+    public void testGetListLsa() throws Exception {
+        lsUpdate.addLsa(ospflsa);
+        lsUpdate.addLsa(ospflsa);
+        lsa = lsUpdate.getLsaList();
+        assertThat(lsa, is(notNullValue()));
+        assertThat(lsa.size(), is(5));
+    }
+
+    /**
+     * Tests addLsa() method.
+     */
+    @Test
+    public void testAddLsa() throws Exception {
+        lsUpdate.addLsa(ospflsa);
+        assertThat(lsUpdate, is(notNullValue()));
+    }
+
+    /**
+     * Tests noLsa() getter  method.
+     */
+    @Test
+    public void testGetNoLsa() throws Exception {
+        lsUpdate.setNumberOfLsa(5);
+        result = lsUpdate.noLsa();
+        assertThat(result, is(notNullValue()));
+        assertThat(result, is(5));
+    }
+
+    /**
+     * Tests noLsa() setter  method.
+     */
+    @Test
+    public void testSetNoLsa() throws Exception {
+        lsUpdate.setNumberOfLsa(5);
+        result = lsUpdate.noLsa();
+        assertThat(result, is(notNullValue()));
+        assertThat(result, is(5));
+    }
+
+    /**
+     * Tests ospfMessageType() getter  method.
+     */
+    @Test
+    public void testGetOspfMessageType() throws Exception {
+        ospfMessageType = lsUpdate.ospfMessageType();
+        assertThat(ospfMessageType, is(OspfPacketType.LSUPDATE));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        ospfPacketHeader = new OspfPacketHeader();
+        ospfPacketHeader.setAreaId(Ip4Address.valueOf("1.1.1.1"));
+        ospfPacketHeader.setAuthentication(0);
+        ospfPacketHeader.setAuthType(0);
+        ospfPacketHeader.setChecksum(12345);
+        ospfPacketHeader.setDestinationIp(Ip4Address.valueOf("10.10.10.10"));
+        ospfPacketHeader.setOspfPacLength(56);
+        ospfPacketHeader.setOspftype(4);
+        ospfPacketHeader.setOspfVer(2);
+        ospfPacketHeader.setRouterId(Ip4Address.valueOf("2.2.2.2"));
+        ospfPacketHeader.setSourceIp(Ip4Address.valueOf("3.3.3.3"));
+        lsUpdate = new LsUpdate(ospfPacketHeader);
+        result1 = createLsUpdatePacket();
+        channelBuffer = ChannelBuffers.copiedBuffer(result1);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet2);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet3);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet4);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet5);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet6);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet7);
+        lsUpdate.readFrom(channelBuffer);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet8);
+        lsUpdate.readFrom(channelBuffer);
+        assertThat(lsUpdate, is(notNullValue()));
+        assertThat(lsUpdate.ospfMessageType(), is(OspfPacketType.LSUPDATE));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result1 = lsUpdate.asBytes();
+        assertThat(result1, is(notNullValue()));
+    }
+
+    /**
+     * Tests getLsuHeaderAsByteArray() method.
+     */
+    @Test
+    public void testGetLsuHeaderAsByteArray() throws Exception {
+        result1 = lsUpdate.getLsuHeaderAsByteArray();
+        assertThat(result1, is(notNullValue()));
+    }
+
+    /**
+     * Tests getLsuBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLsuBodyAsByteArray() throws Exception {
+        lsUpdate.setNumberOfLsa(8);
+        lsUpdate.addLsa(ospflsa3);
+        opaqueLsa9 = new OpaqueLsa9(new OpaqueLsaHeader());
+        opaqueLsa9.setLsType(9);
+        lsUpdate.addLsa(opaqueLsa9);
+        opaqueLsa10 = new OpaqueLsa10(new OpaqueLsaHeader());
+        opaqueLsa10.setLsType(10);
+        lsUpdate.addLsa(opaqueLsa10);
+        opaqueLsa11 = new OpaqueLsa11(new OpaqueLsaHeader());
+        opaqueLsa10.setLsType(11);
+        lsUpdate.addLsa(opaqueLsa11);
+        result1 = lsUpdate.getLsuBodyAsByteArray();
+        assertThat(result1, is(notNullValue()));
+    }
+
+    @Test
+    public void testGetLsuBodyAsByteArray1() throws Exception {
+        lsUpdate.setNumberOfLsa(8);
+        opaqueLsa10 = new OpaqueLsa10(new OpaqueLsaHeader());
+        opaqueLsa10.setLsType(10);
+        lsUpdate.addLsa(opaqueLsa10);
+        assertThat(result1, is(nullValue()));
+    }
+
+    @Test
+    public void testGetLsuBodyAsByteArray2() throws Exception {
+        opaqueLsa11 = new OpaqueLsa11(new OpaqueLsaHeader());
+        opaqueLsa11.setLsType(11);
+        lsUpdate.addLsa(opaqueLsa11);
+        result1 = lsUpdate.getLsuBodyAsByteArray();
+        assertThat(result1, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(lsUpdate.toString(), is(notNullValue()));
+    }
+
+    /**
+     * Utility method used by junit methods.
+     */
+    private byte[] createLsUpdatePacket() {
+        byte[] lsUpdatePacket = {0, 0, 0, 7, 0, 2, 2,
+                1, -64, -88, -86, 3, -64, -88, -86, 3, -128, 0, 0, 1, 58,
+                -100, 0, 48, 2, 0, 0, 2, -64, -88, -86, 0, -1, -1, -1, 0,
+                3, 0, 0, 10, -64, -88, -86, 0, -1, -1, -1, 0, 3, 0, 0, 10
+                , 0, 3, 2, 5, 80, -44, 16, 0, -64, -88, -86, 2, -128, 0, 0
+                , 1, 42, 73, 0, 36, -1, -1, -1, -1, -128, 0, 0, 20, 0, 0,
+                0, 0, 0, 0, 0, 0, 0, 3, 2, 5, -108, 121, -85, 0, -64, -88
+                , -86, 2, -128, 0, 0, 1, 52, -91, 0, 36, -1, -1, -1, 0,
+                -128, 0, 0, 20, -64, -88, -86, 1, 0, 0, 0, 0, 0, 3, 2, 5
+                , -64, -126, 120, 0, -64, -88, -86, 2, -128, 0, 0, 1, -45,
+                25, 0, 36, -1, -1, -1, 0, -128, 0, 0, 20, 0, 0, 0, 0, 0,
+                0, 0, 0, 0, 3, 2, 5, -64, -88, 0, 0, -64, -88, -86, 2,
+                -128, 0, 0, 1, 55, 8, 0, 36, -1, -1, -1, 0, -128, 0, 0,
+                20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 2, 5, -64, -88, 1, 0,
+                -64, -88, -86, 2, -128, 0, 0, 1, 44, 18, 0, 36, -1, -1, -1, 0, -128, 0,
+                0, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 2, 5, -64, -88, -84, 0, -64, -88,
+                -86, 2, -128, 0, 0, 1, 51, 65, 0, 36, -1, -1, -1, 0, -128, 0, 0, 20, -64,
+                -88, -86, 10, 0, 0, 0, 0};
+        return lsUpdatePacket;
+    }
+}
\ No newline at end of file