Ip4PrefixTest.java
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package org.onlab.packet;
import org.junit.Test;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.assertThat;
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 default class constructor.
*/
@Test
public void testDefaultConstructor() {
Ip4Prefix ip4prefix = new Ip4Prefix();
assertThat(ip4prefix.toString(), is("0.0.0.0/0"));
}
/**
* Tests valid class copy constructor.
*/
@Test
public void testCopyConstructor() {
Ip4Prefix fromAddr = new Ip4Prefix("1.2.3.0/24");
Ip4Prefix ip4prefix = new Ip4Prefix(fromAddr);
assertThat(ip4prefix.toString(), is("1.2.3.0/24"));
fromAddr = new Ip4Prefix("0.0.0.0/0");
ip4prefix = new Ip4Prefix(fromAddr);
assertThat(ip4prefix.toString(), is("0.0.0.0/0"));
fromAddr = new Ip4Prefix("255.255.255.255/32");
ip4prefix = new Ip4Prefix(fromAddr);
assertThat(ip4prefix.toString(), is("255.255.255.255/32"));
}
/**
* Tests invalid class copy constructor for a null object to copy from.
*/
@Test(expected = NullPointerException.class)
public void testInvalidConstructorNullObject() {
Ip4Prefix fromAddr = null;
Ip4Prefix ip4prefix = new Ip4Prefix(fromAddr);
}
/**
* Tests valid class constructor for an address and prefix length.
*/
@Test
public void testConstructorForAddressAndPrefixLength() {
Ip4Prefix ip4prefix =
new Ip4Prefix(new Ip4Address("1.2.3.0"), (short) 24);
assertThat(ip4prefix.toString(), is("1.2.3.0/24"));
ip4prefix = new Ip4Prefix(new Ip4Address("1.2.3.4"), (short) 24);
assertThat(ip4prefix.toString(), is("1.2.3.0/24"));
ip4prefix = new Ip4Prefix(new Ip4Address("1.2.3.5"), (short) 32);
assertThat(ip4prefix.toString(), is("1.2.3.5/32"));
ip4prefix = new Ip4Prefix(new Ip4Address("0.0.0.0"), (short) 0);
assertThat(ip4prefix.toString(), is("0.0.0.0/0"));
ip4prefix =
new Ip4Prefix(new Ip4Address("255.255.255.255"), (short) 32);
assertThat(ip4prefix.toString(), is("255.255.255.255/32"));
}
/**
* Tests valid class constructor for a string.
*/
@Test
public void testConstructorForString() {
Ip4Prefix ip4prefix = new Ip4Prefix("1.2.3.0/24");
assertThat(ip4prefix.toString(), is("1.2.3.0/24"));
ip4prefix = new Ip4Prefix("1.2.3.4/24");
assertThat(ip4prefix.toString(), is("1.2.3.0/24"));
ip4prefix = new Ip4Prefix("1.2.3.5/32");
assertThat(ip4prefix.toString(), is("1.2.3.5/32"));
ip4prefix = new Ip4Prefix("0.0.0.0/0");
assertThat(ip4prefix.toString(), is("0.0.0.0/0"));
ip4prefix = new Ip4Prefix("255.255.255.255/32");
assertThat(ip4prefix.toString(), is("255.255.255.255/32"));
}
/**
* Tests invalid class constructor for a null string.
*/
@Test(expected = NullPointerException.class)
public void testInvalidConstructorNullString() {
String fromString = null;
Ip4Prefix ip4prefix = new Ip4Prefix(fromString);
}
/**
* Tests invalid class constructor for an empty string.
*/
@Test(expected = IllegalArgumentException.class)
public void testInvalidConstructors() {
// Check constructor for invalid ID: empty string
Ip4Prefix ip4prefix = new Ip4Prefix("");
}
/**
* Tests getting the value of an address.
*/
@Test
public void testGetValue() {
Ip4Prefix ip4prefix = new Ip4Prefix("1.2.3.0/24");
assertThat(ip4prefix.getAddress(), equalTo(new Ip4Address("1.2.3.0")));
assertThat(ip4prefix.getPrefixLen(), is((short) 24));
ip4prefix = new Ip4Prefix("0.0.0.0/0");
assertThat(ip4prefix.getAddress(), equalTo(new Ip4Address("0.0.0.0")));
assertThat(ip4prefix.getPrefixLen(), is((short) 0));
ip4prefix = new Ip4Prefix("255.255.255.255/32");
assertThat(ip4prefix.getAddress(),
equalTo(new Ip4Address("255.255.255.255")));
assertThat(ip4prefix.getPrefixLen(), is((short) 32));
}
/**
* Tests equality of {@link Ip4Address}.
*/
@Test
public void testEquality() {
Ip4Prefix addr1net = new Ip4Prefix("1.2.3.0/24");
Ip4Prefix addr2net = new Ip4Prefix("1.2.3.0/24");
assertThat(addr1net, is(addr2net));
addr1net = new Ip4Prefix("1.2.3.0/24");
addr2net = new Ip4Prefix("1.2.3.4/24");
assertThat(addr1net, is(addr2net));
addr1net = new Ip4Prefix("0.0.0.0/0");
addr2net = new Ip4Prefix("0.0.0.0/0");
assertThat(addr1net, is(addr2net));
addr1net = new Ip4Prefix("255.255.255.255/32");
addr2net = new Ip4Prefix("255.255.255.255/32");
assertThat(addr1net, is(addr2net));
}
/**
* Tests non-equality of {@link Ip4Address}.
*/
@Test
public void testNonEquality() {
Ip4Prefix addr1net = new Ip4Prefix("1.2.0.0/16");
Ip4Prefix addr2net = new Ip4Prefix("1.3.0.0/16");
Ip4Prefix addr3net = new Ip4Prefix("1.3.0.0/24");
Ip4Prefix addr4net = new Ip4Prefix("0.0.0.0/0");
Ip4Prefix addr5net = new Ip4Prefix("255.255.255.255/32");
assertThat(addr1net, is(not(addr2net)));
assertThat(addr3net, is(not(addr2net)));
assertThat(addr4net, is(not(addr2net)));
assertThat(addr5net, is(not(addr2net)));
}
/**
* Tests object string representation.
*/
@Test
public void testToString() {
Ip4Prefix ip4prefix = new Ip4Prefix("1.2.3.0/24");
assertThat(ip4prefix.toString(), is("1.2.3.0/24"));
ip4prefix = new Ip4Prefix("1.2.3.4/24");
assertThat(ip4prefix.toString(), is("1.2.3.0/24"));
ip4prefix = new Ip4Prefix("0.0.0.0/0");
assertThat(ip4prefix.toString(), is("0.0.0.0/0"));
ip4prefix = new Ip4Prefix("255.255.255.255/32");
assertThat(ip4prefix.toString(), is("255.255.255.255/32"));
}
}