// var MockDisposable = Rx.MockDisposable = function (scheduler) {
  //   this.scheduler = scheduler;
  //   this.disposes = [];
  //   this.disposes.push(this.scheduler.clock);
  // };
  //
  // MockDisposable.prototype.dispose = function () {
  //   this.disposes.push(this.scheduler.clock);
  // };