Setting .currentScale to a non-finite should throw.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

PASS svgElement.currentScale = NaN threw exception TypeError: Failed to set the 'currentScale' property on 'SVGSVGElement': The provided float value is non-finite..
PASS svgElement.currentScale = Infinity threw exception TypeError: Failed to set the 'currentScale' property on 'SVGSVGElement': The provided float value is non-finite..
PASS successfullyParsed is true

TEST COMPLETE