datapumps/lib/mixin/spec/PeriodicMixin.js

Node.js ETL (Extract, Transform, Load) toolkit for easy data import, export or transfer between systems.

(function() {
  var Buffer, PeriodicMixin, Pump, sinon;

  require('should');

  sinon = require('sinon');

  PeriodicMixin = require('../PeriodicMixin');

  Pump = require('../../Pump');

  Buffer = require('../../Buffer');

  describe('PeriodicMixin', function() {
    return it('should call .process() periodically', function(done) {
      var buffer, pump;
      buffer = new Buffer();
      (pump = new Pump).mixin(PeriodicMixin(50)).from(buffer).process(function(items) {
        items[0].should.be.eql('foo');
        items[1].should.be.eql('bar');
        if (items.length === 2) {
          return done();
        }
      }).start();
      setTimeout((function() {
        return buffer.write('foo');
      }), 20);
      return setTimeout((function() {
        return buffer.write('bar');
      }), 40);
    });
  });

}).call(this);