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require 'test_helper'
class ActionCable::Connection::SubscriptionsTest < ActionCable::TestCase
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
@server.stubs(:channel_classes).returns(ChatChannel.name => ChatChannel)
@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 @subscriptions.identifiers.empty?
end
end
test "unsubscribe command" do
run_in_eventmachine do
setup_connection
subscribe_to_chat_channel
channel = subscribe_to_chat_channel
channel.expects(:unsubscribe_from_channel)
@subscriptions.execute_command 'command' => 'unsubscribe', 'identifier' => @chat_identifier
assert @subscriptions.identifiers.empty?
end
end
test "unsubscribe command without an identifier" do
run_in_eventmachine do
setup_connection
@subscriptions.execute_command 'command' => 'unsubscribe'
assert @subscriptions.identifiers.empty?
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 "unsubscrib 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)
channel1.expects(:unsubscribe_from_channel)
channel2.expects(:unsubscribe_from_channel)
@subscriptions.unsubscribe_from_all
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_CONNECTION' => 'upgrade', 'HTTP_UPGRADE' => 'websocket'
@connection = Connection.new(@server, env)
@subscriptions = ActionCable::Connection::Subscriptions.new(@connection)
end
end
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