'L{_NewConnectionHelper._knownHosts} is used to create a
L{KnownHostsFile} if one is not passed to the initializer.'

def test_defaultKnownHosts(self):

    result = object()
    self.patch(_NewConnectionHelper, '_knownHosts', (lambda cls: result))
    helper = _NewConnectionHelper(None, None, None, None, None, None, None, None, None, None)
    self.assertIs(result, helper.knownHosts)
