Tests assigning a calculated value to '-webkit-filter' CSS property. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS testDiv.style['-webkit-filter'] is "" testDiv.style['-webkit-filter'] = 'saturate(calc(10% * 2))' PASS testDiv.style['-webkit-filter'] is "saturate(calc(20%))" PASS window.getComputedStyle(testDiv).getPropertyValue('-webkit-filter') is "saturate(0.2)" testDiv.style['-webkit-filter'] = 'brightness(calc(10% * 2))' PASS testDiv.style['-webkit-filter'] is "brightness(calc(20%))" PASS window.getComputedStyle(testDiv).getPropertyValue('-webkit-filter') is "brightness(0.2)" PASS successfullyParsed is true TEST COMPLETE