| /* |
| * Copyright 2014 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; |
| |
| import com.google.common.net.InetAddresses; |
| import com.google.common.testing.EqualsTester; |
| import org.junit.Test; |
| |
| import java.net.InetAddress; |
| |
| import static org.hamcrest.Matchers.is; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable; |
| |
| /** |
| * Tests for class {@link Ip4Address}. |
| */ |
| public class Ip4AddressTest { |
| /** |
| * Tests the immutability of {@link Ip4Address}. |
| */ |
| @Test |
| public void testImmutable() { |
| assertThatClassIsImmutable(Ip4Address.class); |
| } |
| |
| /** |
| * Tests the IPv4 address version constant. |
| */ |
| @Test |
| public void testAddressVersion() { |
| assertThat(Ip4Address.VERSION, is(IpAddress.Version.INET)); |
| } |
| |
| /** |
| * Tests the length of the address in bytes (octets). |
| */ |
| @Test |
| public void testAddrByteLength() { |
| assertThat(Ip4Address.BYTE_LENGTH, is(4)); |
| } |
| |
| /** |
| * Tests the length of the address in bits. |
| */ |
| @Test |
| public void testAddrBitLength() { |
| assertThat(Ip4Address.BIT_LENGTH, is(32)); |
| } |
| |
| /** |
| * Tests returning the IP address version. |
| */ |
| @Test |
| public void testVersion() { |
| Ip4Address ipAddress; |
| |
| // IPv4 |
| ipAddress = Ip4Address.valueOf("0.0.0.0"); |
| assertThat(ipAddress.version(), is(IpAddress.Version.INET)); |
| } |
| |
| /** |
| * Tests returning an IPv4 address as a byte array. |
| */ |
| @Test |
| public void testAddressToOctetsIPv4() { |
| Ip4Address ipAddress; |
| byte[] value; |
| |
| value = new byte[] {1, 2, 3, 4}; |
| ipAddress = Ip4Address.valueOf("1.2.3.4"); |
| assertThat(ipAddress.toOctets(), is(value)); |
| |
| value = new byte[] {0, 0, 0, 0}; |
| ipAddress = Ip4Address.valueOf("0.0.0.0"); |
| assertThat(ipAddress.toOctets(), is(value)); |
| |
| value = new byte[] {(byte) 0xff, (byte) 0xff, |
| (byte) 0xff, (byte) 0xff}; |
| ipAddress = Ip4Address.valueOf("255.255.255.255"); |
| assertThat(ipAddress.toOctets(), is(value)); |
| } |
| |
| /** |
| * Tests returning an IPv4 address as an integer. |
| */ |
| @Test |
| public void testToInt() { |
| Ip4Address ipAddress; |
| |
| ipAddress = Ip4Address.valueOf("1.2.3.4"); |
| assertThat(ipAddress.toInt(), is(0x01020304)); |
| |
| ipAddress = Ip4Address.valueOf("0.0.0.0"); |
| assertThat(ipAddress.toInt(), is(0)); |
| |
| ipAddress = Ip4Address.valueOf("255.255.255.255"); |
| assertThat(ipAddress.toInt(), is(-1)); |
| } |
| |
| /** |
| * Tests valueOf() converter for IPv4 integer value. |
| */ |
| @Test |
| public void testValueOfForIntegerIPv4() { |
| Ip4Address ipAddress; |
| |
| ipAddress = Ip4Address.valueOf(0x01020304); |
| assertThat(ipAddress.toString(), is("1.2.3.4")); |
| |
| ipAddress = Ip4Address.valueOf(0); |
| assertThat(ipAddress.toString(), is("0.0.0.0")); |
| |
| ipAddress = Ip4Address.valueOf(0xffffffff); |
| assertThat(ipAddress.toString(), is("255.255.255.255")); |
| } |
| |
| /** |
| * Tests valueOf() converter for IPv4 byte array. |
| */ |
| @Test |
| public void testValueOfByteArrayIPv4() { |
| Ip4Address ipAddress; |
| |
| final byte[] value1 = new byte[] {1, 2, 3, 4}; |
| ipAddress = Ip4Address.valueOf(value1); |
| assertThat(ipAddress.toString(), is("1.2.3.4")); |
| |
| final byte[] value2 = new byte[] {0, 0, 0, 0}; |
| ipAddress = Ip4Address.valueOf(value2); |
| assertThat(ipAddress.toString(), is("0.0.0.0")); |
| |
| final byte[] value3 = new byte[] {(byte) 0xff, (byte) 0xff, |
| (byte) 0xff, (byte) 0xff}; |
| ipAddress = Ip4Address.valueOf(value3); |
| assertThat(ipAddress.toString(), is("255.255.255.255")); |
| } |
| |
| /** |
| * Tests invalid valueOf() converter for a null array for IPv4. |
| */ |
| @Test(expected = NullPointerException.class) |
| public void testInvalidValueOfNullArrayIPv4() { |
| Ip4Address ipAddress; |
| |
| final byte[] fromArray = null; |
| ipAddress = Ip4Address.valueOf(fromArray); |
| } |
| |
| /** |
| * Tests invalid valueOf() converger for an array that is too short for |
| * IPv4. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidValueOfShortArrayIPv4() { |
| Ip4Address ipAddress; |
| |
| final byte[] fromArray = new byte[] {1, 2, 3}; |
| ipAddress = Ip4Address.valueOf(fromArray); |
| } |
| |
| /** |
| * Tests valueOf() converter for IPv4 byte array and an offset. |
| */ |
| @Test |
| public void testValueOfByteArrayOffsetIPv4() { |
| Ip4Address ipAddress; |
| byte[] value; |
| |
| value = new byte[] {11, 22, 33, // Preamble |
| 1, 2, 3, 4, |
| 44, 55}; // Extra bytes |
| ipAddress = Ip4Address.valueOf(value, 3); |
| assertThat(ipAddress.toString(), is("1.2.3.4")); |
| |
| value = new byte[] {11, 22, // Preamble |
| 0, 0, 0, 0, |
| 33}; // Extra bytes |
| ipAddress = Ip4Address.valueOf(value, 2); |
| assertThat(ipAddress.toString(), is("0.0.0.0")); |
| |
| value = new byte[] {11, 22, // Preamble |
| (byte) 0xff, (byte) 0xff, |
| (byte) 0xff, (byte) 0xff, |
| 33}; // Extra bytes |
| ipAddress = Ip4Address.valueOf(value, 2); |
| assertThat(ipAddress.toString(), is("255.255.255.255")); |
| } |
| |
| /** |
| * Tests invalid valueOf() converger for an array and an invalid offset |
| * for IPv4. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidValueOfArrayInvalidOffsetIPv4() { |
| Ip4Address ipAddress; |
| byte[] value; |
| |
| value = new byte[] {11, 22, 33, // Preamble |
| 1, 2, 3, 4, |
| 44, 55}; // Extra bytes |
| ipAddress = Ip4Address.valueOf(value, 6); |
| } |
| |
| /** |
| * Tests valueOf() converter for IPv4 InetAddress. |
| */ |
| @Test |
| public void testValueOfInetAddressIPv4() { |
| Ip4Address ipAddress; |
| InetAddress inetAddress; |
| |
| inetAddress = InetAddresses.forString("1.2.3.4"); |
| ipAddress = Ip4Address.valueOf(inetAddress); |
| assertThat(ipAddress.toString(), is("1.2.3.4")); |
| |
| inetAddress = InetAddresses.forString("0.0.0.0"); |
| ipAddress = Ip4Address.valueOf(inetAddress); |
| assertThat(ipAddress.toString(), is("0.0.0.0")); |
| |
| inetAddress = InetAddresses.forString("255.255.255.255"); |
| ipAddress = Ip4Address.valueOf(inetAddress); |
| assertThat(ipAddress.toString(), is("255.255.255.255")); |
| } |
| |
| /** |
| * Tests valueOf() converter for IPv4 string. |
| */ |
| @Test |
| public void testValueOfStringIPv4() { |
| Ip4Address ipAddress; |
| |
| ipAddress = Ip4Address.valueOf("1.2.3.4"); |
| assertThat(ipAddress.toString(), is("1.2.3.4")); |
| |
| ipAddress = Ip4Address.valueOf("0.0.0.0"); |
| assertThat(ipAddress.toString(), is("0.0.0.0")); |
| |
| ipAddress = Ip4Address.valueOf("255.255.255.255"); |
| assertThat(ipAddress.toString(), is("255.255.255.255")); |
| } |
| |
| /** |
| * Tests invalid valueOf() converter for a null string. |
| */ |
| @Test(expected = NullPointerException.class) |
| public void testInvalidValueOfNullString() { |
| Ip4Address ipAddress; |
| |
| String fromString = null; |
| ipAddress = Ip4Address.valueOf(fromString); |
| } |
| |
| /** |
| * Tests invalid valueOf() converter for an empty string. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidValueOfEmptyString() { |
| Ip4Address ipAddress; |
| |
| String fromString = ""; |
| ipAddress = Ip4Address.valueOf(fromString); |
| } |
| |
| /** |
| * Tests invalid valueOf() converter for an incorrect string. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidValueOfIncorrectString() { |
| Ip4Address ipAddress; |
| |
| String fromString = "NoSuchIpAddress"; |
| ipAddress = Ip4Address.valueOf(fromString); |
| } |
| |
| /** |
| * Tests making a mask prefix for a given prefix length for IPv4. |
| */ |
| @Test |
| public void testMakeMaskPrefixIPv4() { |
| Ip4Address ipAddress; |
| |
| ipAddress = Ip4Address.makeMaskPrefix(25); |
| assertThat(ipAddress.toString(), is("255.255.255.128")); |
| |
| ipAddress = Ip4Address.makeMaskPrefix(0); |
| assertThat(ipAddress.toString(), is("0.0.0.0")); |
| |
| ipAddress = Ip4Address.makeMaskPrefix(32); |
| assertThat(ipAddress.toString(), is("255.255.255.255")); |
| } |
| |
| /** |
| * Tests making a mask prefix for an invalid prefix length for IPv4: |
| * negative prefix length. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidMakeNegativeMaskPrefixIPv4() { |
| Ip4Address ipAddress; |
| |
| ipAddress = Ip4Address.makeMaskPrefix(-1); |
| } |
| |
| /** |
| * Tests making a mask prefix for an invalid prefix length for IPv4: |
| * too long prefix length. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidMakeTooLongMaskPrefixIPv4() { |
| Ip4Address ipAddress; |
| |
| ipAddress = Ip4Address.makeMaskPrefix(33); |
| } |
| |
| /** |
| * Tests making of a masked address for IPv4. |
| */ |
| @Test |
| public void testMakeMaskedAddressIPv4() { |
| Ip4Address ipAddress = Ip4Address.valueOf("1.2.3.5"); |
| Ip4Address ipAddressMasked; |
| |
| ipAddressMasked = Ip4Address.makeMaskedAddress(ipAddress, 24); |
| assertThat(ipAddressMasked.toString(), is("1.2.3.0")); |
| |
| ipAddressMasked = Ip4Address.makeMaskedAddress(ipAddress, 0); |
| assertThat(ipAddressMasked.toString(), is("0.0.0.0")); |
| |
| ipAddressMasked = Ip4Address.makeMaskedAddress(ipAddress, 32); |
| assertThat(ipAddressMasked.toString(), is("1.2.3.5")); |
| } |
| |
| /** |
| * Tests making of a masked address for invalid prefix length for IPv4: |
| * negative prefix length. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidMakeNegativeMaskedAddressIPv4() { |
| Ip4Address ipAddress = Ip4Address.valueOf("1.2.3.5"); |
| Ip4Address ipAddressMasked; |
| |
| ipAddressMasked = Ip4Address.makeMaskedAddress(ipAddress, -1); |
| } |
| |
| /** |
| * Tests making of a masked address for an invalid prefix length for IPv4: |
| * too long prefix length. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidMakeTooLongMaskedAddressIPv4() { |
| Ip4Address ipAddress = Ip4Address.valueOf("1.2.3.5"); |
| Ip4Address ipAddressMasked; |
| |
| ipAddressMasked = Ip4Address.makeMaskedAddress(ipAddress, 33); |
| } |
| |
| /** |
| * Tests comparison of {@link Ip4Address} for IPv4. |
| */ |
| @Test |
| public void testComparisonIPv4() { |
| Ip4Address addr1, addr2, addr3, addr4; |
| |
| addr1 = Ip4Address.valueOf("1.2.3.4"); |
| addr2 = Ip4Address.valueOf("1.2.3.4"); |
| addr3 = Ip4Address.valueOf("1.2.3.3"); |
| addr4 = Ip4Address.valueOf("1.2.3.5"); |
| assertTrue(addr1.compareTo(addr2) == 0); |
| assertTrue(addr1.compareTo(addr3) > 0); |
| assertTrue(addr1.compareTo(addr4) < 0); |
| |
| addr1 = Ip4Address.valueOf("255.2.3.4"); |
| addr2 = Ip4Address.valueOf("255.2.3.4"); |
| addr3 = Ip4Address.valueOf("255.2.3.3"); |
| addr4 = Ip4Address.valueOf("255.2.3.5"); |
| assertTrue(addr1.compareTo(addr2) == 0); |
| assertTrue(addr1.compareTo(addr3) > 0); |
| assertTrue(addr1.compareTo(addr4) < 0); |
| } |
| |
| /** |
| * Tests equality of {@link Ip4Address} for IPv4. |
| */ |
| @Test |
| public void testEqualityIPv4() { |
| new EqualsTester() |
| .addEqualityGroup(Ip4Address.valueOf("1.2.3.4"), |
| Ip4Address.valueOf("1.2.3.4")) |
| .addEqualityGroup(Ip4Address.valueOf("1.2.3.5"), |
| Ip4Address.valueOf("1.2.3.5")) |
| .addEqualityGroup(Ip4Address.valueOf("0.0.0.0"), |
| Ip4Address.valueOf("0.0.0.0")) |
| .addEqualityGroup(Ip4Address.valueOf("255.255.255.255"), |
| Ip4Address.valueOf("255.255.255.255")) |
| .testEquals(); |
| } |
| |
| /** |
| * Tests object string representation for IPv4. |
| */ |
| @Test |
| public void testToStringIPv4() { |
| Ip4Address ipAddress; |
| |
| ipAddress = Ip4Address.valueOf("1.2.3.4"); |
| assertThat(ipAddress.toString(), is("1.2.3.4")); |
| |
| ipAddress = Ip4Address.valueOf("0.0.0.0"); |
| assertThat(ipAddress.toString(), is("0.0.0.0")); |
| |
| ipAddress = Ip4Address.valueOf("255.255.255.255"); |
| assertThat(ipAddress.toString(), is("255.255.255.255")); |
| } |
| } |