Unit tests for PortAddresses class

Change-Id: I04334b4cce65e169258de608ccc2461421abaacf

@@ -29,7 +29,7 @@ import com.google.common.base.MoreObjects;
 /**
  * Represents address information bound to a port.
  */
-public class PortAddresses {
+public final class PortAddresses {
 
     private final ConnectPoint connectPoint;
     private final Set<InterfaceIpAddress> ipAddresses;

+/*
+ * 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.net.host;
+
+import java.util.Set;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.IpPrefix;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.VlanId;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.NetTestTools;
+
+import static org.hamcrest.Matchers.is;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.common.testing.EqualsTester;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+/**
+ * Unit tests for port addresses class.
+ */
+public class PortAddressesTest {
+
+    PortAddresses addresses1;
+    PortAddresses sameAsAddresses1;
+    PortAddresses addresses2;
+    PortAddresses addresses3;
+
+    private static final ConnectPoint CONNECT_POINT1 =
+            NetTestTools.connectPoint("cp1", 1);
+    private static final IpAddress IP_ADDRESS1 = IpAddress.valueOf("1.2.3.4");
+    private static final IpPrefix SUBNET_ADDRESS1 =
+            IpPrefix.valueOf("1.2.0.0/16");
+    private static final InterfaceIpAddress INTERFACE_ADDRESS_1 =
+            new InterfaceIpAddress(IP_ADDRESS1, SUBNET_ADDRESS1);
+
+    private static final ConnectPoint CONNECT_POINT2 =
+            NetTestTools.connectPoint("cp2", 1);
+    private static final IpAddress IP_ADDRESS2 = IpAddress.valueOf("1.2.3.5");
+    private static final IpPrefix SUBNET_ADDRESS2 =
+            IpPrefix.valueOf("1.3.0.0/16");
+    private static final InterfaceIpAddress INTERFACE_ADDRESS_2 =
+            new InterfaceIpAddress(IP_ADDRESS2, SUBNET_ADDRESS2);
+
+    Set<InterfaceIpAddress> ipAddresses;
+
+
+    /**
+     * Initializes local data used by all test cases.
+     */
+    @Before
+    public void setUpAddresses() {
+        ipAddresses = ImmutableSet.of(INTERFACE_ADDRESS_1,
+                INTERFACE_ADDRESS_2);
+        addresses1 = new PortAddresses(CONNECT_POINT1, ipAddresses,
+                MacAddress.BROADCAST, VlanId.NONE);
+        sameAsAddresses1 = new PortAddresses(CONNECT_POINT1, ipAddresses,
+                MacAddress.BROADCAST, VlanId.NONE);
+        addresses2 = new PortAddresses(CONNECT_POINT2, ipAddresses,
+                MacAddress.BROADCAST, VlanId.NONE);
+        addresses3 = new PortAddresses(CONNECT_POINT2, ipAddresses,
+                MacAddress.ZERO, VlanId.NONE);
+    }
+
+    /**
+     * Checks that the PortAddresses class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(PortAddresses.class);
+    }
+
+    /**
+     * Checks the operation of the equals(), hash() and toString()
+     * methods.
+     */
+    @Test
+    public void testEquals() {
+        new EqualsTester()
+                .addEqualityGroup(addresses1, sameAsAddresses1)
+                .addEqualityGroup(addresses2)
+                .addEqualityGroup(addresses3)
+                .testEquals();
+    }
+
+    /**
+     * Tests that object are created correctly.
+     */
+    @Test
+    public void testConstruction() {
+        assertThat(addresses1.mac(), is(MacAddress.BROADCAST));
+        assertThat(addresses1.connectPoint(), is(CONNECT_POINT1));
+        assertThat(addresses1.ipAddresses(), is(ipAddresses));
+        assertThat(addresses1.vlan(), is(VlanId.NONE));
+    }
+}