nanomsg/test/streams.js

Node bindings for nanomsg

var nano = require('..');
var test = require('tape');

test('pipe a thousand msgs between incompatible socket types', function(t){

  var sent = 0, recv = 0;

  var pub = nano.socket('pub', { tcpnodelay: true });
  var sub = nano.socket('sub', { tcpnodelay: true });

  var push = nano.socket('push');
  var pull = nano.socket('pull');
  pull.setEncoding('utf8'); //should also be able to do in `socket(type, opts)`

  pub.bind('tcp://127.0.0.1:64999');
  sub.connect('tcp://127.0.0.1:64999');

  pull.bind('tcp://127.0.0.1:65000');
  push.connect('tcp://127.0.0.1:65000');

  sub.pipe(push);
  pull.on('data', pullsocket);

  setTimeout(function(){
    while(sent++ < 1001) pub.send('hello from nanomsg pub socket!');
  }, 200);

  function pullsocket(msg){
    if(recv++ > 999){
      t.equal( msg, 'hello from nanomsg pub socket!', 'piped a pub/pull combo');
      pub.close();
      push.close();
      pull.close();
      sub.close();
      t.end();
    }
  }
});