libraries/liblldp/src/test/java/org/opendaylight/openflowplugin/libraries/liblldp/LLDPTLVTest.java

   1 /**
   2  * Copyright (c) 2015 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.openflowplugin.libraries.liblldp;
   9
  10 import com.google.common.io.BaseEncoding;
  11 import com.google.common.primitives.Bytes;
  12 import org.junit.Assert;
  13 import org.junit.Test;
  14 import org.slf4j.Logger;
  15 import org.slf4j.LoggerFactory;
  16
  17 @SuppressWarnings("checkstyle:AbbreviationAsWordInName")
  18 public class LLDPTLVTest {
  19
  20     /** dummy custom tlv value. */
  21     private static final String CUSTOM_TLV_ULTIMATE = "What do you get when you multiply 6 by 9?";
  22     /** dummy custom tlv value in binary form. */
  23     private static final byte[] CUSTOM_TLV_ULTIMATE_BIN = new byte[] {
  24         0x57, 0x68, 0x61, 0x74, 0x20, 0x64, 0x6f, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x67, 0x65, 0x74,
  25         0x20, 0x77, 0x68, 0x65, 0x6e, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x6d, 0x75, 0x6c, 0x74, 0x69,
  26         0x70, 0x6c, 0x79, 0x20, 0x36, 0x20, 0x62, 0x79, 0x20, 0x39, 0x3f
  27     };
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(LLDPTLVTest.class);
  30
  31     /**
  32      * Test method for
  33      * {@link org.opendaylight.openflowplugin.libraries.liblldp.LLDPTLV#createCustomTLVValue(java.lang.String)}
  34      * .
  35      */
  36     @Test
  37     public void testCreateCustomTLVValue() {
  38         byte[] tlv = LLDPTLV.createCustomTLVValue(CUSTOM_TLV_ULTIMATE);
  39
  40         byte[] expectedCustomTlv = Bytes.concat(new byte[] {
  41             // custom type (7b) + length (9b) = 16b = 2B  (skipped)
  42             // 0x7f, 24,
  43             // openflow OUI
  44             0x00, 0x26, (byte) 0xe1,
  45             // subtype
  46             0x00},
  47             // custom value
  48             CUSTOM_TLV_ULTIMATE_BIN);
  49
  50         BaseEncoding be = BaseEncoding.base16().withSeparator(" ", 2).lowerCase();
  51         LOG.debug("expected: {}", be.encode(expectedCustomTlv));
  52         LOG.debug("actual  : {}", be.encode(tlv));
  53         Assert.assertArrayEquals(expectedCustomTlv, tlv);
  54     }
  55
  56     /**
  57      * Test method for
  58      * {@link org.opendaylight.openflowplugin.libraries.liblldp.LLDPTLV#getCustomString(byte[], int)}.
  59      */
  60     @Test
  61     public void testGetCustomString() {
  62         byte[] inputCustomTlv = Bytes.concat(new byte[] {
  63             // custom type (7b) + length (9b) = 16b = 2B  (skipped)
  64             // 0x7f, 24,
  65             // openflow OUI
  66             0x00, 0x26, (byte) 0xe1,
  67             // subtype
  68             0x00},
  69             // custom value
  70             CUSTOM_TLV_ULTIMATE_BIN);
  71
  72         String actual = LLDPTLV.getCustomString(inputCustomTlv, inputCustomTlv.length);
  73         LOG.debug("actual custom TLV value as string: {}", actual);
  74         Assert.assertEquals(CUSTOM_TLV_ULTIMATE, actual);
  75     }
  76 }