Tests calling getPropertyValue on computed border radii involving CSS calc On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS getComputedStyle(document.getElementById('calc'), null).getPropertyValue('border-top-left-radius') is "calc(10px + 25%) calc(20px + 25%)" PASS getComputedStyle(document.getElementById('calc'), null).getPropertyValue('border-top-right-radius') is "calc(10px + 25%)" PASS getComputedStyle(document.getElementById('calc'), null).getPropertyValue('border-bottom-right-radius') is "25%" PASS getComputedStyle(document.getElementById('calc'), null).getPropertyValue('border-bottom-left-radius') is "25px" PASS getComputedStyle(document.getElementById('calc'), null).getPropertyValue('border-radius') is "calc(10px + 25%) calc(10px + 25%) 25% 25px / calc(20px + 25%) calc(10px + 25%) 25% 25px" PASS successfullyParsed is true TEST COMPLETE