rspec - Ruby EventMachine testing -

my first question concerning ruby. i'm trying test eventmachine interaction inside reactor loop - guess classified "functional" testing.

say have 2 classes - server , client. , want test both sides - need sure interaction.

server:

require 'singleton'  class echoserver < em::connection   include em::protocols::lineprotocol    def post_init     puts "-- connected echo server!"   end    def receive_data data     send_data ">>>you sent: #{data}"     close_connection if data =~ /quit/i   end    def unbind     puts "-- disconnected echo server!"   end end 

client:

class echoclient < em::connection   include em::protocols::lineprotocol    def post_init     send_data "hello"   end    def receive_data(data)     @message = data     p data   end    def unbind     puts "-- disconnected echo server!"   end end 

so, i've tried different approaches , came nothing.

the fundamental question - somehow test code rspec, using should_recive?

eventmachine parameter should class or module, can't send instantiated/mocked code inside. right?

something this?

describe 'simple rspec test'   'should pass test'     eventmachine.run {       eventmachine::start_server "127.0.0.1", 8081, echoserver       puts 'running echo server on 8081'        echoserver.should_receive(:receive_data)        eventmachine.connect '127.0.0.1', 8081, echoclient        eventmachine.add_timer 1         puts 'second passed. stop loop.'         eventmachine.stop_event_loop       end     }   end end 

and, if not, how em::spechelper? have code using it, , can't figure out i'm doing wrong.

describe 'when server run , client sends data'   include em::spechelper    default_timeout 2    def start_server     em.start_server('0.0.0.0', 12345) { |ws|       yield ws if block_given?     }   end    def start_client     client = em.connect('0.0.0.0', 12345, fakewebsocketclient)     yield client if block_given?     return client   end    describe "examples spec"     "should accept single-frame text message"       em {         start_server          start_client { |client|           client.onopen {             client.send_data("\x04\x05hello")           }         }       }     end   end end 

tried lot of variations of these tests , can't figure out. i'm sure i'm missing here...

thanks help.

the simplest solution can think of change this:

echoserver.should_receive(:receive_data) 

to this:

echoserver.any_instance.should_receive(:receive_data) 

since em expecting class start server, above any_instance trick expect instance of class receive method.

the emspechelper example (while being official/standard) quite convoluted, i'd rather stick first rspec , use any_instance, simplicity's sake.