Test to make sure outline-offset is found in the computed style. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS computedStyle.getPropertyValue('outline-offset') is '2px' PASS computedStyle.getPropertyCSSValue('outline-offset').getFloatValue(CSSPrimitiveValue.CSS_PX) is 2 PASS successfullyParsed is true TEST COMPLETE