return rtn;
    }

    suite('basic features', function() {
      var grid;

      setup(function() {
        grid = fixture('trivialGrid');
      });

      test('bounding rectangle for each item', function(done) {

        flush(function() {

          var i, k, currentRect;
          var gridItems = Polymer.dom(grid.root).querySelectorAll('li');
          var expectedBoundingRect = [
            {top: 16, right: 116, bottom: 116, left: 16, width: 100},
            {top: 16, right: 464, bottom: 116, left: