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package com.yahoo.vespa.hosted.node.admin.task.util.network;
import org.junit.Assert;
import org.junit.Test;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* @author smorgrav
*/
public class IPAddressesTest {
private final IPAddressesMock mock = new IPAddressesMock();
@Test
public void choose_sitelocal_ipv4_over_public() {
mock.addAddress("localhost", "38.3.4.2")
.addAddress("localhost", "10.0.2.2")
.addAddress("localhost", "fe80::1")
.addAddress("localhost", "2001::1");
Assert.assertEquals("10.0.2.2", mock.getIPv4Address("localhost"));
}
@Test
public void choose_ipv6_public_over_local() {
mock.addAddress("localhost", "38.3.4.2")
.addAddress("localhost", "10.0.2.2")
.addAddress("localhost", "fe80::1")
.addAddress("localhost", "2001::1");
Assert.assertEquals("2001::1", mock.getIPv6Address("localhost"));
}
@Test(expected = RuntimeException.class)
public void throws_when_multiple_ipv6_addresses() {
mock.addAddress("localhost", "2001::1")
.addAddress("localhost", "2001::2");
mock.getIPv6Address("localhost");
}
@Test(expected = RuntimeException.class)
public void throws_when_multiple_private_ipv4_addresses() {
mock.addAddress("localhost", "38.3.4.2")
.addAddress("localhost", "10.0.2.2")
.addAddress("localhost", "10.0.2.3");
mock.getIPv4Address("localhost");
}
@Test
public void translator_with_valid_parameters() throws UnknownHostException {
// Test simplest possible address
Inet6Address original = (Inet6Address) InetAddress.getByName("2001:db8::1");
Inet6Address prefix = (Inet6Address) InetAddress.getByName("fd00::");
InetAddress translated = IPAddresses.prefixTranslate(original, prefix, 64);
Assert.assertEquals("fd00:0:0:0:0:0:0:1", translated.getHostAddress());
// Test an actual aws address we use
original = (Inet6Address) InetAddress.getByName("2600:1f16:f34:5300:ccc6:1703:b7c2:369d");
translated = IPAddresses.prefixTranslate(original, prefix, 64);
Assert.assertEquals("fd00:0:0:0:ccc6:1703:b7c2:369d", translated.getHostAddress());
// Test different subnet size
translated = IPAddresses.prefixTranslate(original, prefix, 48);
Assert.assertEquals("fd00:0:0:5300:ccc6:1703:b7c2:369d", translated.getHostAddress());
}
}
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