description("This tests indexing outside the range of the computed style object."); var element = document.createElement('div'); element.style.color = 'rgb(120, 120, 120)'; document.documentElement.appendChild(element); var computedStyle = window.getComputedStyle(element, null); shouldBeEqualToString('typeof computedStyle.length', 'number'); shouldBeEqualToString('computedStyle[computedStyle.length]', ''); shouldBeUndefined('computedStyle[-1]') document.documentElement.removeChild(element); successfullyParsed = true;