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# frozen_string_literal: true
require "test_helper"
require "active_support/testing/method_call_assertions"
class ActionCable::Connection::SubscriptionsTest < ActionCable::TestCase
include ActiveSupport::Testing::MethodCallAssertions
class Connection < ActionCable::Connection::Base
attr_reader :websocket
def send_async(method, *args)
send method, *args
end
end
class ChatChannel < ActionCable::Channel::Base
attr_reader :room, :lines
def subscribed
@room = Room.new params[:id]
@lines = []
end
def speak(data)
@lines << data
end
end
setup do
@server = TestServer.new
@chat_identifier = ActiveSupport::JSON.encode(id: 1, channel: "ActionCable::Connection::SubscriptionsTest::ChatChannel")
end
test "subscribe command" do
run_in_eventmachine do
setup_connection
channel = subscribe_to_chat_channel
assert_kind_of ChatChannel, channel
assert_equal 1, channel.room.id
end
end
test "subscribe command without an identifier" do
run_in_eventmachine do
setup_connection
@subscriptions.execute_command "command" => "subscribe"
assert_empty @subscriptions.identifiers
end
end
test "unsubscribe command" do
run_in_eventmachine do
setup_connection
subscribe_to_chat_channel
channel = subscribe_to_chat_channel
assert_called(channel, :unsubscribe_from_channel) do
@subscriptions.execute_command "command" => "unsubscribe", "identifier" => @chat_identifier
end
assert_empty @subscriptions.identifiers
end
end
test "unsubscribe command without an identifier" do
run_in_eventmachine do
setup_connection
@subscriptions.execute_command "command" => "unsubscribe"
assert_empty @subscriptions.identifiers
end
end
test "message command" do
run_in_eventmachine do
setup_connection
channel = subscribe_to_chat_channel
data = { "content" => "Hello World!", "action" => "speak" }
@subscriptions.execute_command "command" => "message", "identifier" => @chat_identifier, "data" => ActiveSupport::JSON.encode(data)
assert_equal [ data ], channel.lines
end
end
test "unsubscribe from all" do
run_in_eventmachine do
setup_connection
channel1 = subscribe_to_chat_channel
channel2_id = ActiveSupport::JSON.encode(id: 2, channel: "ActionCable::Connection::SubscriptionsTest::ChatChannel")
channel2 = subscribe_to_chat_channel(channel2_id)
assert_called(channel1, :unsubscribe_from_channel) do
assert_called(channel2, :unsubscribe_from_channel) do
@subscriptions.unsubscribe_from_all
end
end
end
end
private
def subscribe_to_chat_channel(identifier = @chat_identifier)
@subscriptions.execute_command "command" => "subscribe", "identifier" => identifier
assert_equal identifier, @subscriptions.identifiers.last
@subscriptions.send :find, "identifier" => identifier
end
def setup_connection
env = Rack::MockRequest.env_for "/test", "HTTP_HOST" => "localhost", "HTTP_CONNECTION" => "upgrade", "HTTP_UPGRADE" => "websocket"
@connection = Connection.new(@server, env)
@subscriptions = ActionCable::Connection::Subscriptions.new(@connection)
end
end
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