randTraits.should.be.an.object;
				StrandTraits.Stackable.should.be.an.object;
			});

			it("should not _updateStack() if _initialized is false", function(done) {
				var t = document.querySelector("#test1"),
					s = sinon.spy(t, "_updateStack"),
					origZIndex = t.style.zIndex,
					afterZIndex = null;

				t._initialized = false;
				t._updateStack();

				t.async(function(){
					should.equal(s.calledOnce, true);
					afterZIndex = t.style.zIndex;
					afterZIndex.should.equal.origZIndex;
					done()