2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.protocol.util;
10 import static org.junit.Assert.assertArrayEquals;
11 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeFloat32;
12 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv4Address;
13 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv4Prefix;
14 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv6Address;
15 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv6Prefix;
16 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeMedium;
18 import io.netty.buffer.ByteBuf;
19 import io.netty.buffer.Unpooled;
20 import org.junit.Test;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ieee754.rev130819.Float32;
27 public class ByteBufWriteUtilTest {
28 private static final byte[] FOUR_BYTE_ZEROS = { 0, 0, 0, 0 };
31 public void testWriteMediumValue() {
32 final byte[] result = { 0, 0, 5 };
33 final ByteBuf output = Unpooled.buffer(3);
34 writeMedium(5, output);
35 assertArrayEquals(result, output.array());
38 final byte[] resultZero = { 0, 0, 0 };
39 writeMedium(null, output);
40 assertArrayEquals(resultZero, output.array());
44 public void testWriteIpv4Address() {
45 final byte[] result = { 127, 0, 0, 1 };
46 final ByteBuf output = Unpooled.buffer(Ipv4Util.IP4_LENGTH);
47 writeIpv4Address(new Ipv4Address("127.0.0.1"), output);
48 assertArrayEquals(result, output.array());
51 writeIpv4Address(null, output);
52 assertArrayEquals(FOUR_BYTE_ZEROS, output.array());
56 public void testWriteIpv4Prefix() {
57 final byte[] result = { 123, 122, 4, 5, 8 };
58 final ByteBuf output = Unpooled.buffer(ByteBufWriteUtil.IPV4_PREFIX_BYTE_LENGTH);
59 writeIpv4Prefix(new Ipv4Prefix("123.122.4.5/8"), output);
60 assertArrayEquals(result, output.array());
63 final byte[] zeroResult = { 0, 0, 0, 0, 0 };
64 writeIpv4Prefix(null, output);
65 assertArrayEquals(zeroResult, output.array());
69 public void testWriteIpv6Address() {
70 final byte[] result = { 0x20, (byte) 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
72 final ByteBuf output = Unpooled.buffer(Ipv6Util.IPV6_LENGTH);
73 writeIpv6Address(new Ipv6Address("2001::1"), output);
74 assertArrayEquals(result, output.array());
77 final byte[] zeroResult = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,};
78 writeIpv6Address(null, output);
79 assertArrayEquals(zeroResult, output.array());
83 public void testWriteIpv6Prefix() {
84 final byte[] result = { 0x20, (byte) 0x01, 0x0d, (byte) 0xb8, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00,
85 0x00, 0x00, 0x00, 0x00, 0x40 };
86 final ByteBuf output = Unpooled.buffer(ByteBufWriteUtil.IPV6_PREFIX_BYTE_LENGTH);
87 writeIpv6Prefix(new Ipv6Prefix("2001:db8:1:2::/64"), output);
88 assertArrayEquals(result, output.array());
91 final byte[] zeroResult = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
92 writeIpv6Prefix(null, output);
93 assertArrayEquals(zeroResult, output.array());
97 public void testWriteFloat32() {
98 final byte[] result = { 0, 0, 0, 5 };
99 final ByteBuf output = Unpooled.buffer(Float.BYTES);
100 writeFloat32(new Float32(result), output);
101 assertArrayEquals(result, output.array());
104 writeFloat32(null, output);
105 assertArrayEquals(FOUR_BYTE_ZEROS, output.array());