bgp/concepts/src/test/java/org/opendaylight/bgp/concepts/RouteDistinguisherUtilTest.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.bgp.concepts;
   9
  10 import static org.junit.Assert.assertArrayEquals;
  11 import static org.junit.Assert.assertEquals;
  12 import io.netty.buffer.ByteBuf;
  13 import io.netty.buffer.Unpooled;
  14 import java.lang.reflect.Constructor;
  15 import java.lang.reflect.InvocationTargetException;
  16 import org.junit.Test;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.RouteDistinguisher;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.RouteDistinguisherBuilder;
  19
  20 public class RouteDistinguisherUtilTest {
  21
  22     private static final String IP_ADDRESS = "1.2.3.4";
  23     private static final String IP_PORT = "10";
  24     private static final String ADMIN = "55";
  25     private static final String ASSIGNED_NUMBER = "65535";
  26     private static final byte[] AS_2B_BYTES = { 0, 0, 0, 55, 0, 0, (byte)0xff, (byte)0xff};
  27     private static final byte[] IP_BYTES = { 0, 1, 1, 2, 3, 4, 0, 10 };
  28     private static final byte[] AS_4B_BYTES = { 0, 2, 0, 0, 0, 55, (byte)0xff, (byte)0xff};
  29     private static final byte[] INVALID_RD_TYPE_BYTES = { 0, 3, 0, 0, 0, 55, (byte)0xff, (byte)0xff};
  30     private static final char SEPARATOR = ':';
  31
  32     @Test
  33     public void testAs2BRouteDistinguisher() {
  34         final RouteDistinguisher expected = createRouteDistinguisher(0, ADMIN, ASSIGNED_NUMBER);
  35         final RouteDistinguisher parsed = RouteDistinguisherUtil.parseRouteDistinguisher(Unpooled.copiedBuffer(AS_2B_BYTES));
  36         assertEquals(expected.getRdTwoOctetAs(), parsed.getRdTwoOctetAs());
  37         final ByteBuf byteAggregator = Unpooled.buffer(AS_2B_BYTES.length);
  38         RouteDistinguisherUtil.serializeRouteDistinquisher(expected, byteAggregator);
  39         assertArrayEquals(AS_2B_BYTES, byteAggregator.array());
  40         assertEquals("0" + SEPARATOR + ADMIN + SEPARATOR + ASSIGNED_NUMBER, parsed.getRdTwoOctetAs().getValue());
  41     }
  42
  43     @Test
  44     public void testIpv4RouteDistinguisher() {
  45         final RouteDistinguisher expected = createRouteDistinguisher(1, IP_ADDRESS, IP_PORT);
  46         final RouteDistinguisher parsed = RouteDistinguisherUtil.parseRouteDistinguisher(Unpooled.copiedBuffer(IP_BYTES));
  47         assertEquals(expected.getRdIpv4(), parsed.getRdIpv4());
  48         final ByteBuf byteAggregator = Unpooled.buffer(IP_BYTES.length);
  49         RouteDistinguisherUtil.serializeRouteDistinquisher(expected, byteAggregator);
  50         assertArrayEquals(IP_BYTES, byteAggregator.array());
  51         assertEquals(IP_ADDRESS + SEPARATOR + IP_PORT, parsed.getRdIpv4().getValue());
  52     }
  53
  54     @Test
  55     public void testAs4BRouteDistinguisher() {
  56         final RouteDistinguisher expected = createRouteDistinguisher(2, ADMIN, ASSIGNED_NUMBER);
  57         final RouteDistinguisher parsed = RouteDistinguisherUtil.parseRouteDistinguisher(Unpooled.copiedBuffer(AS_4B_BYTES));
  58         assertEquals(expected.getRdAs(), parsed.getRdAs());
  59         final ByteBuf byteAggregator = Unpooled.buffer(AS_4B_BYTES.length);
  60         RouteDistinguisherUtil.serializeRouteDistinquisher(expected, byteAggregator);
  61         assertArrayEquals(AS_4B_BYTES, byteAggregator.array());
  62         assertEquals(ADMIN + SEPARATOR + ASSIGNED_NUMBER, parsed.getRdAs().getValue());
  63     }
  64
  65     @Test
  66     public void testParseRouteDistinguisher() {
  67         final RouteDistinguisher expected = RouteDistinguisherUtil.parseRouteDistinguisher(ADMIN + SEPARATOR + ASSIGNED_NUMBER);
  68         final RouteDistinguisher parsed = RouteDistinguisherUtil.parseRouteDistinguisher(Unpooled.copiedBuffer(AS_4B_BYTES));
  69         assertEquals(expected.getRdAs(), parsed.getRdAs());
  70
  71         final RouteDistinguisher expectedRD = RouteDistinguisherUtil.parseRouteDistinguisher(expected);
  72         assertEquals(expectedRD.getRdAs(), parsed.getRdAs());
  73
  74         final RouteDistinguisher expectedObj = RouteDistinguisherUtil.parseRouteDistinguisher((Object) (ADMIN + SEPARATOR + ASSIGNED_NUMBER));
  75         assertEquals(expectedObj.getRdAs(), parsed.getRdAs());
  76     }
  77
  78     @Test(expected=UnsupportedOperationException.class)
  79     public void testPrivateConstructor() throws Throwable {
  80         final Constructor<RouteDistinguisherUtil> c = RouteDistinguisherUtil.class.getDeclaredConstructor();
  81         c.setAccessible(true);
  82         try {
  83             c.newInstance();
  84         } catch (final InvocationTargetException e) {
  85             throw e.getCause();
  86         }
  87     }
  88
  89     @Test(expected=IllegalArgumentException.class)
  90     public void testInvalidRDType() throws Throwable {
  91         RouteDistinguisherUtil.parseRouteDistinguisher(Unpooled.copiedBuffer(INVALID_RD_TYPE_BYTES));
  92     }
  93
  94     /**
  95      * Create 4-octet AS RD or IPv4 RD, 2-octet AS RD cannot be created with this function
  96      * @param administratorSubfield
  97      * @param assignedNumberSubfield
  98      * @return
  99      */
 100     private RouteDistinguisher createRouteDistinguisher(final int type, final String administratorSubfield, final String assignedNumberSubfield) {
 101         final StringBuffer routeDistiguisher = new StringBuffer();
 102         if (type == 0) {
 103             routeDistiguisher.append(type).append(SEPARATOR);
 104         }
 105         routeDistiguisher.append(administratorSubfield);
 106         routeDistiguisher.append(SEPARATOR);
 107         routeDistiguisher.append(assignedNumberSubfield);
 108         return RouteDistinguisherBuilder.getDefaultInstance(routeDistiguisher.toString());
 109     }
 110 }