1 SVG 1.1 dynamic update tests
3 Tests dynamic updates of the 'x' property of the SVGMaskElement object
5 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
8 PASS maskElement.x.baseVal.valueAsString is "-100%"
9 PASS maskElement.x.baseVal.valueAsString is "-10%"
10 PASS successfullyParsed is true