'L{IRCProto} can interpret I{ISUPPORT} (I{005}) messages from the server
and reflect their information in its C{supported} attribute.'

def test_isupport(self):

    self.proto.makeConnection(self.transport)
    self.proto.dataReceived(':irc.example.com    005    alice    MODES=4    CHANLIMIT=#:20\r\n')
    self.assertEqual(4, self.proto.supported.getFeature('MODES'))
