public void test() throws UnknownHostException {
InetSocketAddress preferredAddress = new InetSocketAddress(InetAddress.getByName("127.0.0.1"), 1);
InetSocketAddress otherAddress1 = new InetSocketAddress(InetAddress.getByName("127.0.0.1"), 2);
InetSocketAddress otherAddress2 = new InetSocketAddress(InetAddress.getByName("127.0.0.2"), 1);
Preference preference = new SocketAddressPreference(preferredAddress);
Node preferredNode = mock(Node.class);
Node otherNode1 = mock(Node.class);
Node otherNode2 = mock(Node.class);
when(preferredNode.getSocketAddress()).thenReturn(preferredAddress);
when(otherNode1.getSocketAddress()).thenReturn(otherAddress1);
when(otherNode2.getSocketAddress()).thenReturn(otherAddress2);
assertTrue(preference.preferred(preferredNode));
assertFalse(preference.preferred(otherNode1));
assertFalse(preference.preferred(otherNode2));
}