SVG 1.1 dynamic update tests
Tests dynamic updates of the 'y' property of the SVGFilterPrimitiveStandardAttributes object
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS gradientElement.y.baseVal.value is 100
PASS gradientElement.y.baseVal.value is 0
PASS successfullyParsed is true
TEST COMPLETE