ONOS-512: Implement IPv6 Extension Headers

* Create IExtensionHeader interface
    - setNextHeader, getNextHeader interface for all extension header classes
        - Except EncapSecurityPayload, in which the nextHeader field is encrypted

* Create BaseOptions class
    - Super class of HopByHopOptions and DestinationOptions, since these two are very similar

* Implement following classes with unit test
    - HopByHopOptions
    - DestinationOptions
    - Fragment
    - Routing
    - Authentication
    - EncapSecurityPayload

Change-Id: If65894eccf20ac90f04bc2b0cb42aac6dd5a9674
diff --git a/utils/misc/src/test/java/org/onlab/packet/ipv6/AuthenticationTest.java b/utils/misc/src/test/java/org/onlab/packet/ipv6/AuthenticationTest.java
new file mode 100644
index 0000000..a6edc5d
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/packet/ipv6/AuthenticationTest.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2014-2015 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.onlab.packet.ipv6;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onlab.packet.Data;
+import org.onlab.packet.UDP;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Tests for class {@link Authentication}.
+ */
+public class AuthenticationTest {
+    private static Data data;
+    private static UDP udp;
+    private static byte[] icv = {
+            (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44
+    };
+    private static byte[] bytePacket;
+
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        data = new Data();
+        data.setData("testSerialize".getBytes());
+        udp = new UDP();
+        udp.setPayload(data);
+
+        byte[] bytePayload = udp.serialize();
+        byte[] byteHeader = {
+                (byte) 0x11, (byte) 0x02, (byte) 0x00, (byte) 0x00,
+                (byte) 0x13, (byte) 0x57, (byte) 0x24, (byte) 0x68,
+                (byte) 0x00, (byte) 0xff, (byte) 0xff, (byte) 0x00,
+                (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44
+        };
+        bytePacket = new byte[byteHeader.length + bytePayload.length];
+        System.arraycopy(byteHeader, 0, bytePacket, 0, byteHeader.length);
+        System.arraycopy(bytePayload, 0, bytePacket, byteHeader.length, bytePayload.length);
+    }
+
+    /**
+     * Tests serialize and setters.
+     */
+    @Test
+    public void testSerialize() {
+        Authentication auth = new Authentication();
+        auth.setNextHeader((byte) 0x11);
+        auth.setPayloadLength((byte) 0x02);
+        auth.setSecurityParamIndex(0x13572468);
+        auth.setSequence(0xffff00);
+        auth.setIngegrityCheck(icv);
+        auth.setPayload(udp);
+
+        assertArrayEquals(auth.serialize(), bytePacket);
+    }
+
+    /**
+     * Tests deserialize and getters.
+     */
+    @Test
+    public void testDeserialize() {
+        Authentication auth = new Authentication();
+        auth.deserialize(bytePacket, 0, bytePacket.length);
+
+        assertThat(auth.getNextHeader(), is((byte) 0x11));
+        assertThat(auth.getPayloadLength(), is((byte) 0x02));
+        assertThat(auth.getSecurityParamIndex(), is(0x13572468));
+        assertThat(auth.getSequence(), is(0xffff00));
+        assertArrayEquals(auth.getIntegrityCheck(), icv);
+    }
+
+    /**
+     * Tests comparator.
+     */
+    @Test
+    public void testEqual() {
+        Authentication auth1 = new Authentication();
+        auth1.setNextHeader((byte) 0x11);
+        auth1.setPayloadLength((byte) 0x02);
+        auth1.setSecurityParamIndex(0x13572468);
+        auth1.setSequence(0xffff00);
+        auth1.setIngegrityCheck(icv);
+
+        Authentication auth2 = new Authentication();
+        auth2.setNextHeader((byte) 0x11);
+        auth2.setPayloadLength((byte) 0x02);
+        auth2.setSecurityParamIndex(0x13572467);
+        auth2.setSequence(0xffff00);
+        auth2.setIngegrityCheck(icv);
+
+        assertTrue(auth1.equals(auth1));
+        assertFalse(auth1.equals(auth2));
+    }
+}
diff --git a/utils/misc/src/test/java/org/onlab/packet/ipv6/BaseOptionsTest.java b/utils/misc/src/test/java/org/onlab/packet/ipv6/BaseOptionsTest.java
new file mode 100644
index 0000000..885b4af
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/packet/ipv6/BaseOptionsTest.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2014-2015 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.onlab.packet.ipv6;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onlab.packet.Data;
+import org.onlab.packet.IPv6;
+import org.onlab.packet.UDP;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Tests for class {@link BaseOptions}.
+ */
+public class BaseOptionsTest {
+    private static Data data;
+    private static UDP udp;
+    private static byte[] options = {
+            (byte) 0x00, (byte) 0x03,
+            (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x00
+    };
+    private static byte[] bytePacket;
+
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        data = new Data();
+        data.setData("testSerialize".getBytes());
+        udp = new UDP();
+        udp.setPayload(data);
+
+        byte[] bytePayload = udp.serialize();
+        byte[] byteHeader = {
+                (byte) 0x11, (byte) 0x00, (byte) 0x00, (byte) 0x03,
+                (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x00
+        };
+        bytePacket = new byte[byteHeader.length + bytePayload.length];
+        System.arraycopy(byteHeader, 0, bytePacket, 0, byteHeader.length);
+        System.arraycopy(bytePayload, 0, bytePacket, byteHeader.length, bytePayload.length);
+    }
+
+    /**
+     * Tests serialize and setters.
+     */
+    @Test
+    public void testSerialize() {
+        BaseOptions baseopt = new BaseOptions();
+        baseopt.setNextHeader((byte) 0x11);
+        baseopt.setHeaderExtLength((byte) 0x00);
+        baseopt.setOptions(options);
+        baseopt.setPayload(udp);
+
+        assertArrayEquals(baseopt.serialize(), bytePacket);
+    }
+
+    /**
+     * Tests deserialize and getters.
+     */
+    @Test
+    public void testDeserialize() {
+        BaseOptions baseopt = new BaseOptions();
+        baseopt.deserialize(bytePacket, 0, bytePacket.length);
+
+        assertThat(baseopt.getNextHeader(), is((byte) 0x11));
+        assertThat(baseopt.getHeaderExtLength(), is((byte) 0x00));
+        assertArrayEquals(baseopt.getOptions(), options);
+    }
+
+    /**
+     * Tests comparator.
+     */
+    @Test
+    public void testEqual() {
+        BaseOptions baseopt1 = new BaseOptions();
+        baseopt1.setNextHeader((byte) 0x11);
+        baseopt1.setHeaderExtLength((byte) 0x00);
+        baseopt1.setOptions(options);
+        baseopt1.setType(IPv6.PROTOCOL_HOPOPT);
+
+        BaseOptions baseopt2 = new BaseOptions();
+        baseopt2.setNextHeader((byte) 0x11);
+        baseopt2.setHeaderExtLength((byte) 0x00);
+        baseopt2.setOptions(options);
+        baseopt1.setType(IPv6.PROTOCOL_DSTOPT);
+
+        assertTrue(baseopt1.equals(baseopt1));
+        assertFalse(baseopt1.equals(baseopt2));
+    }
+}
diff --git a/utils/misc/src/test/java/org/onlab/packet/ipv6/DestinationOptionsTest.java b/utils/misc/src/test/java/org/onlab/packet/ipv6/DestinationOptionsTest.java
new file mode 100644
index 0000000..29dd126
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/packet/ipv6/DestinationOptionsTest.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2014-2015 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.onlab.packet.ipv6;
+
+import org.junit.Test;
+import org.onlab.packet.IPv6;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Tests for class {@link DestinationOptions}.
+ */
+public class DestinationOptionsTest {
+    /**
+     * Tests constructor.
+     */
+    @Test
+    public void testConstructor() {
+        DestinationOptions dstopt = new DestinationOptions();
+        assertThat(dstopt.getType(), is(IPv6.PROTOCOL_DSTOPT));
+    }
+}
diff --git a/utils/misc/src/test/java/org/onlab/packet/ipv6/EncapSecurityPayloadTest.java b/utils/misc/src/test/java/org/onlab/packet/ipv6/EncapSecurityPayloadTest.java
new file mode 100644
index 0000000..294dffb
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/packet/ipv6/EncapSecurityPayloadTest.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2014-2015 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.onlab.packet.ipv6;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onlab.packet.Data;
+import java.util.Arrays;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Tests for class {@link EncapSecurityPayload}.
+ */
+public class EncapSecurityPayloadTest {
+    private static Data data;
+    private static byte[] dataByte = new byte[32];
+    private static byte[] bytePacket;
+
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        Arrays.fill(dataByte, (byte) 0xff);
+        data = new Data().setData(dataByte);
+
+        byte[] bytePayload = data.serialize();
+        byte[] byteHeader = {
+                (byte) 0x13, (byte) 0x57, (byte) 0x24, (byte) 0x68,
+                (byte) 0x00, (byte) 0xff, (byte) 0xff, (byte) 0x00
+        };
+        bytePacket = new byte[byteHeader.length + bytePayload.length];
+        System.arraycopy(byteHeader, 0, bytePacket, 0, byteHeader.length);
+        System.arraycopy(bytePayload, 0, bytePacket, byteHeader.length, bytePayload.length);
+    }
+
+    /**
+     * Tests serialize and setters.
+     */
+    @Test
+    public void testSerialize() {
+        EncapSecurityPayload esp = new EncapSecurityPayload();
+        esp.setSecurityParamIndex(0x13572468);
+        esp.setSequence(0xffff00);
+        esp.setPayload(data);
+
+        assertArrayEquals(esp.serialize(), bytePacket);
+    }
+
+    /**
+     * Tests deserialize and getters.
+     */
+    @Test
+    public void testDeserialize() {
+        EncapSecurityPayload esp = new EncapSecurityPayload();
+        esp.deserialize(bytePacket, 0, bytePacket.length);
+
+        assertThat(esp.getSecurityParamIndex(), is(0x13572468));
+        assertThat(esp.getSequence(), is(0xffff00));
+    }
+
+    /**
+     * Tests comparator.
+     */
+    @Test
+    public void testEqual() {
+        EncapSecurityPayload esp1 = new EncapSecurityPayload();
+        esp1.setSecurityParamIndex(0x13572468);
+        esp1.setSequence(0xffff00);
+
+        EncapSecurityPayload esp2 = new EncapSecurityPayload();
+        esp2.setSecurityParamIndex(0x13572468);
+        esp2.setSequence(0xfffff0);
+
+        assertTrue(esp1.equals(esp1));
+        assertFalse(esp1.equals(esp2));
+    }
+}
diff --git a/utils/misc/src/test/java/org/onlab/packet/ipv6/FragmentTest.java b/utils/misc/src/test/java/org/onlab/packet/ipv6/FragmentTest.java
new file mode 100644
index 0000000..a7c2492
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/packet/ipv6/FragmentTest.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2014-2015 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.onlab.packet.ipv6;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onlab.packet.Data;
+import org.onlab.packet.UDP;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Tests for class {@link Fragment}.
+ */
+public class FragmentTest {
+    private static Data data;
+    private static UDP udp;
+    private static byte[] bytePacket;
+
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        data = new Data();
+        data.setData("testSerialize".getBytes());
+        udp = new UDP();
+        udp.setPayload(data);
+
+        byte[] bytePayload = udp.serialize();
+        byte[] byteHeader = {
+                (byte) 0x11, (byte) 0x00, (byte) 0x00, (byte) 0xf9,
+                (byte) 0x00, (byte) 0x00, (byte) 0x13, (byte) 0x57
+        };
+        bytePacket = new byte[byteHeader.length + bytePayload.length];
+        System.arraycopy(byteHeader, 0, bytePacket, 0, byteHeader.length);
+        System.arraycopy(bytePayload, 0, bytePacket, byteHeader.length, bytePayload.length);
+    }
+
+    /**
+     * Tests serialize and setters.
+     */
+    @Test
+    public void testSerialize() {
+        Fragment frag = new Fragment();
+        frag.setNextHeader((byte) 0x11);
+        frag.setFragmentOffset((short) 0x1f);
+        frag.setMoreFragment((byte) 1);
+        frag.setIdentification(0x1357);
+        frag.setPayload(udp);
+
+        assertArrayEquals(frag.serialize(), bytePacket);
+    }
+
+    /**
+     * Tests deserialize and getters.
+     */
+    @Test
+    public void testDeserialize() {
+        Fragment frag = new Fragment();
+        frag.deserialize(bytePacket, 0, bytePacket.length);
+
+        assertThat(frag.getNextHeader(), is((byte) 0x11));
+        assertThat(frag.getFragmentOffset(), is((short) 0x1f));
+        assertThat(frag.getMoreFragment(), is((byte) 1));
+        assertThat(frag.getIdentification(), is(0x1357));
+    }
+
+    /**
+     * Tests comparator.
+     */
+    @Test
+    public void testEqual() {
+        Fragment frag1 = new Fragment();
+        frag1.setNextHeader((byte) 0x11);
+        frag1.setFragmentOffset((short) 0x1f);
+        frag1.setMoreFragment((byte) 1);
+        frag1.setIdentification(0x1357);
+
+        Fragment frag2 = new Fragment();
+        frag2.setNextHeader((byte) 0x11);
+        frag2.setFragmentOffset((short) 0x1f);
+        frag2.setMoreFragment((byte) 1);
+        frag2.setIdentification(0x1358);
+
+        assertTrue(frag1.equals(frag1));
+        assertFalse(frag1.equals(frag2));
+    }
+}
diff --git a/utils/misc/src/test/java/org/onlab/packet/ipv6/HopByHopOptionsTest.java b/utils/misc/src/test/java/org/onlab/packet/ipv6/HopByHopOptionsTest.java
new file mode 100644
index 0000000..1e9be2f
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/packet/ipv6/HopByHopOptionsTest.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2014-2015 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.onlab.packet.ipv6;
+
+import org.junit.Test;
+import org.onlab.packet.IPv6;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Tests for class {@link HopByHopOptions}.
+ */
+public class HopByHopOptionsTest {
+    /**
+     * Tests constructor.
+     */
+    @Test
+    public void testConstructor() {
+        HopByHopOptions hopopt = new HopByHopOptions();
+        assertThat(hopopt.getType(), is(IPv6.PROTOCOL_HOPOPT));
+    }
+}
diff --git a/utils/misc/src/test/java/org/onlab/packet/ipv6/RoutingTest.java b/utils/misc/src/test/java/org/onlab/packet/ipv6/RoutingTest.java
new file mode 100644
index 0000000..2dc71c8
--- /dev/null
+++ b/utils/misc/src/test/java/org/onlab/packet/ipv6/RoutingTest.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright 2014-2015 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.onlab.packet.ipv6;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onlab.packet.Data;
+import org.onlab.packet.UDP;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Tests for class {@link Routing}.
+ */
+public class RoutingTest {
+    private static Data data;
+    private static UDP udp;
+    private static byte[] routingData = {
+            (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
+            (byte) 0x20, (byte) 0x01, (byte) 0x0f, (byte) 0x18,
+            (byte) 0x01, (byte) 0x13, (byte) 0x02, (byte) 0x15,
+            (byte) 0xca, (byte) 0x2a, (byte) 0x14, (byte) 0xff,
+            (byte) 0xfe, (byte) 0x35, (byte) 0x26, (byte) 0xce
+    };
+    private static byte[] bytePacket;
+
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        data = new Data();
+        data.setData("testSerialize".getBytes());
+        udp = new UDP();
+        udp.setPayload(data);
+
+        byte[] bytePayload = udp.serialize();
+        byte[] byteHeader = {
+                (byte) 0x11, (byte) 0x02, (byte) 0x00, (byte) 0x03,
+                (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
+                (byte) 0x20, (byte) 0x01, (byte) 0x0f, (byte) 0x18,
+                (byte) 0x01, (byte) 0x13, (byte) 0x02, (byte) 0x15,
+                (byte) 0xca, (byte) 0x2a, (byte) 0x14, (byte) 0xff,
+                (byte) 0xfe, (byte) 0x35, (byte) 0x26, (byte) 0xce
+        };
+        bytePacket = new byte[byteHeader.length + bytePayload.length];
+        System.arraycopy(byteHeader, 0, bytePacket, 0, byteHeader.length);
+        System.arraycopy(bytePayload, 0, bytePacket, byteHeader.length, bytePayload.length);
+    }
+
+    /**
+     * Tests serialize and setters.
+     */
+    @Test
+    public void testSerialize() {
+        Routing routing = new Routing();
+        routing.setNextHeader((byte) 0x11);
+        routing.setHeaderExtLength((byte) 0x02);
+        routing.setRoutingType((byte) 0x00);
+        routing.setSegmntsLeft((byte) 0x03);
+        routing.setRoutingData(routingData);
+        routing.setPayload(udp);
+
+        assertArrayEquals(routing.serialize(), bytePacket);
+    }
+
+    /**
+     * Tests deserialize and getters.
+     */
+    @Test
+    public void testDeserialize() {
+        Routing routing = new Routing();
+        routing.deserialize(bytePacket, 0, bytePacket.length);
+
+        assertThat(routing.getNextHeader(), is((byte) 0x11));
+        assertThat(routing.getHeaderExtLength(), is((byte) 0x02));
+        assertThat(routing.getRoutingType(), is((byte) 0x00));
+        assertThat(routing.getSegmentsLeft(), is((byte) 0x03));
+        assertArrayEquals(routing.getRoutingData(), routingData);
+    }
+
+    /**
+     * Tests comparator.
+     */
+    @Test
+    public void testEqual() {
+        Routing routing1 = new Routing();
+        routing1.setNextHeader((byte) 0x11);
+        routing1.setHeaderExtLength((byte) 0x02);
+        routing1.setRoutingType((byte) 0x00);
+        routing1.setSegmntsLeft((byte) 0x03);
+        routing1.setRoutingData(routingData);
+
+        Routing routing2 = new Routing();
+        routing2.setNextHeader((byte) 0x11);
+        routing2.setHeaderExtLength((byte) 0x02);
+        routing2.setRoutingType((byte) 0x00);
+        routing2.setSegmntsLeft((byte) 0x02);
+        routing2.setRoutingData(routingData);
+
+        assertTrue(routing1.equals(routing1));
+        assertFalse(routing1.equals(routing2));
+    }
+}