SVG 1.1 dynamic update tests
Tests dynamic updates of the 'specularConstant' attribute of the SVGFESpecularLightingElement object
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS specularElement.getAttribute('specularConstant') is "4"
PASS specularElement.getAttribute('specularConstant') is "1"
PASS successfullyParsed is true
TEST COMPLETE