require 'test_helper' class ServerTest < ActionCableTest class ChatChannel < ActionCable::Channel::Base def self.matches?(identifier) identifier[:channel] == 'chat' && identifier[:user_id].to_i.nonzero? end end class ChatServer < ActionCable::Server register_channels ChatChannel end def app ChatServer end test "channel registration" do assert_equal ChatServer.registered_channels, Set.new([ ChatChannel ]) end test "subscribing to a channel with valid params" do ws = Faye::WebSocket::Client.new(websocket_url) ws.on(:message) do |message| puts message.inspect end ws.send command: 'subscribe', identifier: { channel: 'chat'}.to_json end test "subscribing to a channel with invalid params" do end end