Attribute("checked", null);

				flush(function() {
					a.value.should.equal(true);
					done();
				});
			});

			it("should have a style of '_strand_checked' applied to the inner #checkbox div", function(done) {
				var a = document.querySelector("#cbx"),
					aInner = Polymer.dom(a.root).querySelector("#checkbox"),
					cssClass = "_strand_checked",
					hasSelected = null;

				flush(function() {
					hasSelected = aInner.classList.contains(cssClass);
					hasSelected.should.equal(true);
					done();
