var needle = require('../'), should = require('should'), http = require('http'); var server, port = 11112; describe('socket reuse', function() { before(function() { server = http.createServer(function(req, res) { res.setHeader('Content-Type', 'application/json'); setTimeout(function() { res.end('{"foo":"bar"}'); }, 50); }).listen(port); }); after(function() { server.close(); }); describe('when sockets are reused', function() { var httpAgent = new http.Agent({ keepAlive : true, maxSockets : 1 }); it('does not duplicate listeners on .end', function(done) { var last_error; var count = 10; function completed(err) { --count || done(last_error); } function send() { needle.get('localhost:' + port, { agent: httpAgent }, function(err, resp) { if (err) throw new Error("Unexpected error: " + err); // lets go through all sockets and inspect all socket objects for (hostTarget in httpAgent.sockets) { httpAgent.sockets[hostTarget].forEach(function(socket) { // normally, there are 2 internal listeners and 1 needle sets up, // but to be sure the test does not fail even if newer node versions // introduce additional listeners, we use a higher limit. try { socket.listeners('end').length.should.be.below(5, "too many listeners on the socket object's end event"); } catch (e) { last_error = e; } }); } completed(); }); } for (var i = 0; i < count; i++) { send(); } }); }); });