1 Test that negative border image width values are ignored
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 PASS getComputedStyle(elm).borderImageWidth is "2 3 4 5"
7 PASS getComputedStyle(elm).borderImageOutset is "6 7 8 9"
8 PASS successfullyParsed is true