code

Ledger.prototype.server = undefined;
Ledger.prototype.halt_service = function() {
 this.server.removeAllListeners('request');
 this.server.removeAllListeners('listening');
 this.server.close(); 
};
Ledger.prototype.service = function() {
  var self = this;
  var http = require('http');
  var sys = require('sys');
  self.server = http.createServer(function(request,response) {
    var resp = response;
    self.find_all(function(err,items){
      var body = JSON.stringify(items);
      resp.writeHead(200, {
        'Content-Length': body.length,
        'Content-Type': 'text/json'
      });
      resp.write(body,'utf8')
      resp.end();
    });
  });
  self.server.addListener('close',function(errno) {
    sys.puts('close ' + errno);
  });
  self.server.listen(8001);
};

test

 it('it serves json on port 8001', function() {
    var ledger = new Ledger();
    ledger.service();
    ledger.append([{name:'A Thing', value: "A Value"},{horse:'pony',value:'cake'}],function(err,items){
    http = require('http');
    var google = http.createClient(8001, 'localhost');
    var request = google.request('GET', '/',{'host': 'localhost'});
      request.addListener('response', function (response) {
        response.setEncoding('utf8');
        expect(response.statusCode).toEqual(200);
        expect(response.headers["content-type"]).toEqual('text/json');
        response.addListener('data', function (chunk) {
          data = JSON.parse(chunk);
          expect(data[0]['name']).toEqual('A Thing');
          expect(data[1]['horse']).toEqual('pony');
          asyncSpecDone();
        });
      });
    request.end();
    });
    asyncSpecWait(); 
  });