y.js';

    function setLocation(url) {
      window.history.pushState({}, '', url);
      Base.fire('location-changed', {}, {node: window});
    }


    suite('observe app-route active changes', function() {
      var originalLocation;
      var sandbox, el;
      setup(function() {
        originalLocation = window.location.href;
        sandbox = sinon.sandbox.create();
        el = fixture('observer_app');
      });
      teardown(function() {
        sandbox.restore();
        window.history.replaceSta