'L{ReactorBase} will wrap an L{IResolverSimple} in a complexifier.'

def test_installingOldStyleResolver(self):

    reactor = JustEnoughReactor()
    it = SillyResolverSimple()
    verifyObject(IResolverSimple, reactor.installResolver(it))
    self.assertIsInstance(reactor.nameResolver, SimpleResolverComplexifier)
    self.assertIs(reactor.nameResolver._simpleResolver, it)
