SVG 1.1 dynamic update tests
Tests dynamic updates of the 'preserveAspectRatio' attribute of the SVGFEImageElement object
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS image.getAttribute('preserveAspectRatio') is "xMinYMin slice"
PASS image.getAttribute('preserveAspectRatio') is "xMinYMid slice"
PASS successfullyParsed is true
TEST COMPLETE