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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.task.util.network;
import com.google.common.net.InetAddresses;
import org.junit.jupiter.api.Test;
import java.net.Inet6Address;
import java.net.InetAddress;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
/**
* @author smorgrav
*/
public class IPAddressesTest {
private final IPAddressesMock mock = new IPAddressesMock();
@Test
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");
assertEquals(InetAddresses.forString("10.0.2.2"), mock.getIPv4Address("localhost").get());
}
@Test
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");
assertEquals(InetAddresses.forString("2001::1"), mock.getIPv6Address("localhost").get());
}
@Test
void throws_when_multiple_ipv6_addresses() {
assertThrows(RuntimeException.class, () -> {
mock.addAddress("localhost", "2001::1")
.addAddress("localhost", "2001::2");
mock.getIPv6Address("localhost");
});
}
@Test
void throws_when_multiple_private_ipv4_addresses() {
assertThrows(RuntimeException.class, () -> {
mock.addAddress("localhost", "38.3.4.2")
.addAddress("localhost", "10.0.2.2")
.addAddress("localhost", "10.0.2.3");
mock.getIPv4Address("localhost");
});
}
@Test
void translator_with_valid_parameters() {
// Test simplest possible address
Inet6Address original = (Inet6Address) InetAddresses.forString("2001:db8::1");
Inet6Address prefix = (Inet6Address) InetAddresses.forString("fd00::");
InetAddress translated = IPAddresses.prefixTranslate(original, prefix, 8);
assertEquals("fd00:0:0:0:0:0:0:1", translated.getHostAddress());
// Test an actual aws address we use
original = (Inet6Address) InetAddresses.forString("2600:1f16:f34:5300:ccc6:1703:b7c2:369d");
translated = IPAddresses.prefixTranslate(original, prefix, 8);
assertEquals("fd00:0:0:0:ccc6:1703:b7c2:369d", translated.getHostAddress());
// Test different subnet size
translated = IPAddresses.prefixTranslate(original, prefix, 6);
assertEquals("fd00:0:0:5300:ccc6:1703:b7c2:369d", translated.getHostAddress());
}
}
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