'L{dns.UnknownRecord} instances compare equal if and only if they have
the same data and ttl.'

def test_unknown(self):

    self._equalityTest(dns.UnknownRecord('foo', ttl=10), dns.UnknownRecord('foo', ttl=10), dns.UnknownRecord('foobar', ttl=10))
    self._equalityTest(dns.UnknownRecord('foo', ttl=10), dns.UnknownRecord('foo', ttl=10), dns.UnknownRecord('bar', ttl=10))
    self._equalityTest(dns.UnknownRecord('foo', ttl=10), dns.UnknownRecord('foo', ttl=10), dns.UnknownRecord('foo', ttl=100))
