'When passed an C{addressTypes} parameter containing both L{IPv4Address}
and L{IPv6Address} (or the default of C{None}, which carries the same
meaning), L{GAIResolver} will pass C{AF_UNSPEC} to C{getaddrinfo}.'

def test_resolveBoth(self):

    self._resolveOnlyTest([IPv4Address, IPv6Address], AF_UNSPEC)
    self._resolveOnlyTest(None, AF_UNSPEC)
