public void canDistinguishIpAddressFromHostName() {

		assertFalse("Whoops.  just identifed 'foo' as an ip address", HostPort.isIpv4("foo"));
		
		assertFalse("Whoops.  just identifed '...' as an ip address", HostPort.isIpv4("..."));

		assertFalse("Whoops.  just identifed 'f...' as an ip address", HostPort.isIpv4("f..."));

		assertFalse("Whoops.  just identifed '0...' as an ip address", HostPort.isIpv4("0..."));

		assertFalse("Whoops.  just identifed '0.0..' as an ip address", HostPort.isIpv4("0.0.."));

		assertFalse("Whoops.  just identifed '0.0.0.' as an ip address", HostPort.isIpv4("0.0.0."));

		assertTrue("Whoops.  unable to identify '0.0.0.0' as an ip address", HostPort.isIpv4("0.0.0.0"));
		
		assertTrue("Whoops.  just identifed '10.10.10.10' as an ip address", HostPort.isIpv4("10.10.10.10"));
	}