text: var RxOld = require('rx');
  var RxNew = require('../../../../index');
  
  module.exports = function (suite) {
    function add(x, y) {
      return x + y;
    }
    var oldZipWithImmediateScheduler = RxOld.Observable.range(0, 25).zip(
      RxOld.Observable.range(0, 25),
      add
    );
    var newZipWithImmediateScheduler = RxNew.Observable.range(0, 25).zip(
      RxNew.Observable.range(0, 25),
      add
    );
  
    function _next(x) { }
    function _error(e) { }
    function _complete() { }
    return suite
      .add('old zip() with immediate scheduler', function () {
        oldZipWithImmediateScheduler.subscribe(_next, _error, _complete);
      })
      .add('new zip() with immediate scheduler', function () {
        newZipWithImmediateScheduler.subscribe(_next, _error, _complete);
      });
  };