require 'test_helper' require 'stubs/test_connection' require 'stubs/room' class ActionCable::Channel::RejectionTest < ActiveSupport::TestCase class SecretChannel < ActionCable::Channel::Base def subscribed reject if params[:id] > 0 end end setup do @user = User.new "lifo" @connection = TestConnection.new(@user) end test "subscription rejection" do @connection.expects(:subscriptions).returns mock().tap { |m| m.expects(:remove_subscription).with instance_of(SecretChannel) } @channel = SecretChannel.new @connection, "{id: 1}", { id: 1 } expected = { "identifier" => "{id: 1}", "type" => "reject_subscription" } assert_equal expected, @connection.last_transmission end end