SVG 1.1 dynamic update tests
Tests dynamic updates of the 'diffuseConstant' property of the SVGFEDiffuseLightingElement object
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS gradientElement.diffuseConstant.baseVal is 0
PASS gradientElement.diffuseConstant.baseVal is 1
PASS successfullyParsed is true
TEST COMPLETE