statsd/test/server_tests.js

var dgram = require('dgram'),
    net = require('net'),
    fs = require('fs');

var config = {
    address: '127.0.0.1',
    port: 8125
};
var msg = "This is a test\r\n";

module.exports = {
  udp_data_received: function(test) {
    test.expect(3);
    var server = require('../servers/udp');
    var started = server.start(config, function(data, rinfo) {
        test.equal(msg, data.toString());
        test.equal(msg.length, rinfo.size);
        test.done();
    });
    test.ok(started);

    var buf = new Buffer(msg);
    var sock = dgram.createSocket('udp4');
    sock.send(buf, 0, buf.length, config.port, config.address, function(err, bytes) {
          sock.close();
    });
  },
  tcp_data_received: function(test) {
    test.expect(3);
    var server = require('../servers/tcp');
    var started = server.start(config, function(data, rinfo) {
        test.equal(msg, data.toString());
        test.equal(msg.length, rinfo.size);
        test.done();
    });
    test.ok(started);

    var client = net.connect(config.port, config.address, function() {
        client.write(msg);
        client.end();
    });
  },
  tcp_data_buffered: function(test) {
    test.expect(3);
    var server = require('../servers/tcp');
    var splitmsg = msg.split(' ');
    config.port = 8126;
    var started = server.start(config, function(data, rinfo) {
        test.equal(msg, data.toString());
        test.equal(msg.length, rinfo.size);
        test.done();
    });
    test.ok(started);

    var client = net.connect(config.port, config.address, function() {
        client.setNoDelay(true);
        splitmsg.forEach(function(part) {
            client.write(part);
            client.write(' ');
        });
        client.end();
    });
  },
  unix_socket_data_received: function(test) {
    test.expect(3);
    var server = require('../servers/tcp');
    config.socket = './statsd_tmp.socket';
    var started = server.start(config, function (data, rinfo) {
        test.equal(msg, data.toString());
        test.equal(msg.length, rinfo.size);
        fs.unlinkSync(config.socket);
        config.socket = undefined;
        test.done();
    });

    test.ok(started);

    var client = net.connect(config.socket, function () {
        client.write(msg);
        client.end();
    });
  }
};