/*
* Copyright 2014-present 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.testing.EqualsTester;
import org.junit.Test;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
/**
* Tests for class {@link Ip4Prefix}.
*/
public class Ip4PrefixTest {
/**
* Tests the immutability of {@link Ip4Prefix}.
*/
@Test
public void testImmutable() {
assertThatClassIsImmutable(Ip4Prefix.class);
}
/**
* Tests the IPv4 prefix address version constant.
*/
@Test
public void testAddressVersion() {
assertThat(Ip4Prefix.VERSION, is(IpAddress.Version.INET));
}
/**
* Tests the maximum mask length.
*/
@Test
public void testMaxMaskLength() {
assertThat(Ip4Prefix.MAX_MASK_LENGTH, is(32));
}
/**
* Tests returning the IP version of the prefix.
*/
@Test
public void testVersion() {
Ip4Prefix ipPrefix;
// IPv4
ipPrefix = Ip4Prefix.valueOf("0.0.0.0/0");
assertThat(ipPrefix.version(), is(IpAddress.Version.INET));
}
/**
* Tests returning the IP address value and IP address prefix length of
* an IPv4 prefix.
*/
@Test
public void testAddressAndPrefixLengthIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf("1.2.3.0/24");
assertThat(ipPrefix.address(), equalTo(Ip4Address.valueOf("1.2.3.0")));
assertThat(ipPrefix.prefixLength(), is(24));
ipPrefix = Ip4Prefix.valueOf("1.2.3.4/24");
assertThat(ipPrefix.address(), equalTo(Ip4Address.valueOf("1.2.3.0")));
assertThat(ipPrefix.prefixLength(), is(24));
ipPrefix = Ip4Prefix.valueOf("1.2.3.4/32");
assertThat(ipPrefix.address(), equalTo(Ip4Address.valueOf("1.2.3.4")));
assertThat(ipPrefix.prefixLength(), is(32));
ipPrefix = Ip4Prefix.valueOf("1.2.3.5/32");
assertThat(ipPrefix.address(), equalTo(Ip4Address.valueOf("1.2.3.5")));
assertThat(ipPrefix.prefixLength(), is(32));
ipPrefix = Ip4Prefix.valueOf("0.0.0.0/0");
assertThat(ipPrefix.address(), equalTo(Ip4Address.valueOf("0.0.0.0")));
assertThat(ipPrefix.prefixLength(), is(0));
ipPrefix = Ip4Prefix.valueOf("255.255.255.255/32");
assertThat(ipPrefix.address(),
equalTo(Ip4Address.valueOf("255.255.255.255")));
assertThat(ipPrefix.prefixLength(), is(32));
}
/**
* Tests valueOf() converter for IPv4 integer value.
*/
@Test
public void testValueOfForIntegerIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf(0x01020304, 24);
assertThat(ipPrefix.toString(), is("1.2.3.0/24"));
ipPrefix = Ip4Prefix.valueOf(0x01020304, 32);
assertThat(ipPrefix.toString(), is("1.2.3.4/32"));
ipPrefix = Ip4Prefix.valueOf(0x01020305, 32);
assertThat(ipPrefix.toString(), is("1.2.3.5/32"));
ipPrefix = Ip4Prefix.valueOf(0, 0);
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf(0, 32);
assertThat(ipPrefix.toString(), is("0.0.0.0/32"));
ipPrefix = Ip4Prefix.valueOf(0xffffffff, 0);
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf(0xffffffff, 16);
assertThat(ipPrefix.toString(), is("255.255.0.0/16"));
ipPrefix = Ip4Prefix.valueOf(0xffffffff, 32);
assertThat(ipPrefix.toString(), is("255.255.255.255/32"));
}
/**
* Tests invalid valueOf() converter for IPv4 integer value and
* negative prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfIntegerNegativePrefixLengthIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf(0x01020304, -1);
}
/**
* Tests invalid valueOf() converter for IPv4 integer value and
* too long prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfIntegerTooLongPrefixLengthIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf(0x01020304, 33);
}
/**
* Tests valueOf() converter for IPv4 byte array.
*/
@Test
public void testValueOfByteArrayIPv4() {
Ip4Prefix ipPrefix;
byte[] value;
value = new byte[] {1, 2, 3, 4};
ipPrefix = Ip4Prefix.valueOf(value, 24);
assertThat(ipPrefix.toString(), is("1.2.3.0/24"));
ipPrefix = Ip4Prefix.valueOf(value, 32);
assertThat(ipPrefix.toString(), is("1.2.3.4/32"));
value = new byte[] {1, 2, 3, 5};
ipPrefix = Ip4Prefix.valueOf(value, 32);
assertThat(ipPrefix.toString(), is("1.2.3.5/32"));
value = new byte[] {0, 0, 0, 0};
ipPrefix = Ip4Prefix.valueOf(value, 0);
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf(value, 32);
assertThat(ipPrefix.toString(), is("0.0.0.0/32"));
value = new byte[] {(byte) 0xff, (byte) 0xff,
(byte) 0xff, (byte) 0xff};
ipPrefix = Ip4Prefix.valueOf(value, 0);
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf(value, 16);
assertThat(ipPrefix.toString(), is("255.255.0.0/16"));
ipPrefix = Ip4Prefix.valueOf(value, 32);
assertThat(ipPrefix.toString(), is("255.255.255.255/32"));
}
/**
* Tests invalid valueOf() converter for a null array for IPv4.
*/
@Test(expected = NullPointerException.class)
public void testInvalidValueOfNullArrayIPv4() {
Ip4Prefix ipPrefix;
byte[] value;
value = null;
ipPrefix = Ip4Prefix.valueOf(value, 24);
}
/**
* Tests invalid valueOf() converter for a short array for IPv4.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfShortArrayIPv4() {
Ip4Prefix ipPrefix;
byte[] value;
value = new byte[] {1, 2, 3};
ipPrefix = Ip4Prefix.valueOf(value, 24);
}
/**
* Tests invalid valueOf() converter for IPv4 byte array and
* negative prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfByteArrayNegativePrefixLengthIPv4() {
Ip4Prefix ipPrefix;
byte[] value;
value = new byte[] {1, 2, 3, 4};
ipPrefix = Ip4Prefix.valueOf(value, -1);
}
/**
* Tests invalid valueOf() converter for IPv4 byte array and
* too long prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfByteArrayTooLongPrefixLengthIPv4() {
Ip4Prefix ipPrefix;
byte[] value;
value = new byte[] {1, 2, 3, 4};
ipPrefix = Ip4Prefix.valueOf(value, 33);
}
/**
* Tests valueOf() converter for IPv4 address.
*/
@Test
public void testValueOfAddressIPv4() {
Ip4Address ipAddress;
Ip4Prefix ipPrefix;
ipAddress = Ip4Address.valueOf("1.2.3.4");
ipPrefix = Ip4Prefix.valueOf(ipAddress, 24);
assertThat(ipPrefix.toString(), is("1.2.3.0/24"));
ipPrefix = Ip4Prefix.valueOf(ipAddress, 32);
assertThat(ipPrefix.toString(), is("1.2.3.4/32"));
ipAddress = Ip4Address.valueOf("1.2.3.5");
ipPrefix = Ip4Prefix.valueOf(ipAddress, 32);
assertThat(ipPrefix.toString(), is("1.2.3.5/32"));
ipAddress = Ip4Address.valueOf("0.0.0.0");
ipPrefix = Ip4Prefix.valueOf(ipAddress, 0);
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf(ipAddress, 32);
assertThat(ipPrefix.toString(), is("0.0.0.0/32"));
ipAddress = Ip4Address.valueOf("255.255.255.255");
ipPrefix = Ip4Prefix.valueOf(ipAddress, 0);
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf(ipAddress, 16);
assertThat(ipPrefix.toString(), is("255.255.0.0/16"));
ipPrefix = Ip4Prefix.valueOf(ipAddress, 32);
assertThat(ipPrefix.toString(), is("255.255.255.255/32"));
}
/**
* Tests invalid valueOf() converter for a null IP address.
*/
@Test(expected = NullPointerException.class)
public void testInvalidValueOfNullAddress() {
Ip4Address ipAddress;
Ip4Prefix ipPrefix;
ipAddress = null;
ipPrefix = Ip4Prefix.valueOf(ipAddress, 24);
}
/**
* Tests invalid valueOf() converter for IPv4 address and
* negative prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfAddressNegativePrefixLengthIPv4() {
Ip4Address ipAddress;
Ip4Prefix ipPrefix;
ipAddress = Ip4Address.valueOf("1.2.3.4");
ipPrefix = Ip4Prefix.valueOf(ipAddress, -1);
}
/**
* Tests invalid valueOf() converter for IPv4 address and
* too long prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfAddressTooLongPrefixLengthIPv4() {
Ip4Address ipAddress;
Ip4Prefix ipPrefix;
ipAddress = Ip4Address.valueOf("1.2.3.4");
ipPrefix = Ip4Prefix.valueOf(ipAddress, 33);
}
/**
* Tests valueOf() converter for IPv4 string.
*/
@Test
public void testValueOfStringIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf("1.2.3.4/24");
assertThat(ipPrefix.toString(), is("1.2.3.0/24"));
ipPrefix = Ip4Prefix.valueOf("1.2.3.4/32");
assertThat(ipPrefix.toString(), is("1.2.3.4/32"));
ipPrefix = Ip4Prefix.valueOf("1.2.3.5/32");
assertThat(ipPrefix.toString(), is("1.2.3.5/32"));
ipPrefix = Ip4Prefix.valueOf("0.0.0.0/0");
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf("0.0.0.0/32");
assertThat(ipPrefix.toString(), is("0.0.0.0/32"));
ipPrefix = Ip4Prefix.valueOf("255.255.255.255/0");
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf("255.255.255.255/16");
assertThat(ipPrefix.toString(), is("255.255.0.0/16"));
ipPrefix = Ip4Prefix.valueOf("255.255.255.255/32");
assertThat(ipPrefix.toString(), is("255.255.255.255/32"));
}
/**
* Tests invalid valueOf() converter for a null string.
*/
@Test(expected = NullPointerException.class)
public void testInvalidValueOfNullString() {
Ip4Prefix ipPrefix;
String fromString;
fromString = null;
ipPrefix = Ip4Prefix.valueOf(fromString);
}
/**
* Tests invalid valueOf() converter for an empty string.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfEmptyString() {
Ip4Prefix ipPrefix;
String fromString;
fromString = "";
ipPrefix = Ip4Prefix.valueOf(fromString);
}
/**
* Tests invalid valueOf() converter for an incorrect string.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfIncorrectString() {
Ip4Prefix ipPrefix;
String fromString;
fromString = "NoSuchIpPrefix";
ipPrefix = Ip4Prefix.valueOf(fromString);
}
/**
* Tests invalid valueOf() converter for IPv4 string and
* negative prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfStringNegativePrefixLengthIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf("1.2.3.4/-1");
}
/**
* Tests invalid valueOf() converter for IPv4 string and
* too long prefix length.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidValueOfStringTooLongPrefixLengthIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf("1.2.3.4/33");
}
/**
* Tests IP prefix contains another IP prefix for IPv4.
*/
@Test
public void testContainsIpPrefixIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf("1.2.0.0/24");
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/24")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/32")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.4/32")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/16")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.3.0.0/24")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/16")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/0")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("255.255.255.255/32")));
ipPrefix = Ip4Prefix.valueOf("1.2.0.0/32");
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/24")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/32")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.4/32")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/16")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.3.0.0/24")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/16")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/0")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("255.255.255.255/32")));
ipPrefix = Ip4Prefix.valueOf("0.0.0.0/0");
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/24")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/32")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.4/32")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/16")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("1.3.0.0/24")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/16")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/0")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("255.255.255.255/32")));
ipPrefix = Ip4Prefix.valueOf("255.255.255.255/32");
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/24")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/32")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.4/32")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.2.0.0/16")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("1.3.0.0/24")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/16")));
assertFalse(ipPrefix.contains(Ip4Prefix.valueOf("0.0.0.0/0")));
assertTrue(ipPrefix.contains(Ip4Prefix.valueOf("255.255.255.255/32")));
}
/**
* Tests IP prefix contains IP address for IPv4.
*/
@Test
public void testContainsIpAddressIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf("1.2.0.0/24");
assertTrue(ipPrefix.contains(Ip4Address.valueOf("1.2.0.0")));
assertTrue(ipPrefix.contains(Ip4Address.valueOf("1.2.0.4")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("1.3.0.0")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("0.0.0.0")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("255.255.255.255")));
ipPrefix = Ip4Prefix.valueOf("1.2.0.0/32");
assertTrue(ipPrefix.contains(Ip4Address.valueOf("1.2.0.0")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("1.2.0.4")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("1.3.0.0")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("0.0.0.0")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("255.255.255.255")));
ipPrefix = Ip4Prefix.valueOf("0.0.0.0/0");
assertTrue(ipPrefix.contains(Ip4Address.valueOf("1.2.0.0")));
assertTrue(ipPrefix.contains(Ip4Address.valueOf("1.2.0.4")));
assertTrue(ipPrefix.contains(Ip4Address.valueOf("1.3.0.0")));
assertTrue(ipPrefix.contains(Ip4Address.valueOf("0.0.0.0")));
assertTrue(ipPrefix.contains(Ip4Address.valueOf("255.255.255.255")));
ipPrefix = Ip4Prefix.valueOf("255.255.255.255/32");
assertFalse(ipPrefix.contains(Ip4Address.valueOf("1.2.0.0")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("1.2.0.4")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("1.3.0.0")));
assertFalse(ipPrefix.contains(Ip4Address.valueOf("0.0.0.0")));
assertTrue(ipPrefix.contains(Ip4Address.valueOf("255.255.255.255")));
}
/**
* Tests equality of {@link Ip4Prefix} for IPv4.
*/
@Test
public void testEqualityIPv4() {
new EqualsTester()
.addEqualityGroup(Ip4Prefix.valueOf("1.2.0.0/24"),
Ip4Prefix.valueOf("1.2.0.0/24"),
Ip4Prefix.valueOf("1.2.0.4/24"))
.addEqualityGroup(Ip4Prefix.valueOf("1.2.0.0/16"),
Ip4Prefix.valueOf("1.2.0.0/16"))
.addEqualityGroup(Ip4Prefix.valueOf("1.2.0.0/32"),
Ip4Prefix.valueOf("1.2.0.0/32"))
.addEqualityGroup(Ip4Prefix.valueOf("1.3.0.0/24"),
Ip4Prefix.valueOf("1.3.0.0/24"))
.addEqualityGroup(Ip4Prefix.valueOf("0.0.0.0/0"),
Ip4Prefix.valueOf("0.0.0.0/0"))
.addEqualityGroup(Ip4Prefix.valueOf("255.255.255.255/32"),
Ip4Prefix.valueOf("255.255.255.255/32"))
.testEquals();
}
/**
* Tests object string representation for IPv4.
*/
@Test
public void testToStringIPv4() {
Ip4Prefix ipPrefix;
ipPrefix = Ip4Prefix.valueOf("1.2.3.0/24");
assertThat(ipPrefix.toString(), is("1.2.3.0/24"));
ipPrefix = Ip4Prefix.valueOf("1.2.3.4/24");
assertThat(ipPrefix.toString(), is("1.2.3.0/24"));
ipPrefix = Ip4Prefix.valueOf("0.0.0.0/0");
assertThat(ipPrefix.toString(), is("0.0.0.0/0"));
ipPrefix = Ip4Prefix.valueOf("255.255.255.255/32");
assertThat(ipPrefix.toString(), is("255.255.255.255/32"));
}
}