er.dom(grid.root).querySelector('#viewport');
						var items = Polymer.dom(recycler.root).querySelectorAll("div[is*='strand-gen-comp']");
						if (!items.length) {
							throw Error("no items rendered yet");
						}
					}, function () {
						var recycler = Polymer.dom(grid.root).querySelector('#viewport');
						var items = Polymer.dom(recycler.root).querySelectorAll("div[is*='strand-gen-comp']");
						items.length.should.be.greaterThan(0);
						done();
					});
				});
			});

			it("should select a