This test checks the use of SVGAnimatedEnumeration within SVGMaskElement On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Check initial 'maskUnits' value PASS maskElement.maskUnits.toString() is "[object SVGAnimatedEnumeration]" PASS typeof(maskElement.maskUnits.baseVal) is "number" PASS maskElement.maskUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE Switch to 'objectBoundingBox' PASS maskElement.maskUnits.baseVal = SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.maskUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskUnits') is "objectBoundingBox" Try setting invalid values PASS maskElement.maskUnits.baseVal = 3 threw exception Error: SVG_INVALID_VALUE_ERR: DOM SVG Exception 1. PASS maskElement.maskUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskUnits') is "objectBoundingBox" PASS maskElement.maskUnits.baseVal = -1 threw exception Error: SVG_INVALID_VALUE_ERR: DOM SVG Exception 1. PASS maskElement.maskUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskUnits') is "objectBoundingBox" PASS maskElement.maskUnits.baseVal = 0 threw exception Error: SVG_INVALID_VALUE_ERR: DOM SVG Exception 1. PASS maskElement.maskUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskUnits') is "objectBoundingBox" Switch to 'userSpaceOnUse' PASS maskElement.maskUnits.baseVal = SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE is SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE PASS maskElement.maskUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE PASS maskElement.getAttribute('maskUnits') is "userSpaceOnUse" Check initial 'maskContentUnits' value PASS maskElement.maskContentUnits.toString() is "[object SVGAnimatedEnumeration]" PASS typeof(maskElement.maskContentUnits.baseVal) is "number" PASS maskElement.maskContentUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE Switch to 'objectBoundingBox' PASS maskElement.maskContentUnits.baseVal = SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.maskContentUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskContentUnits') is "objectBoundingBox" Try setting invalid values PASS maskElement.maskContentUnits.baseVal = 3 threw exception Error: SVG_INVALID_VALUE_ERR: DOM SVG Exception 1. PASS maskElement.maskContentUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskContentUnits') is "objectBoundingBox" PASS maskElement.maskContentUnits.baseVal = -1 threw exception Error: SVG_INVALID_VALUE_ERR: DOM SVG Exception 1. PASS maskElement.maskContentUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskContentUnits') is "objectBoundingBox" PASS maskElement.maskContentUnits.baseVal = 0 threw exception Error: SVG_INVALID_VALUE_ERR: DOM SVG Exception 1. PASS maskElement.maskContentUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX PASS maskElement.getAttribute('maskContentUnits') is "objectBoundingBox" Switch to 'userSpaceOnUse' PASS maskElement.maskContentUnits.baseVal = SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE is SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE PASS maskElement.maskContentUnits.baseVal is SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE PASS maskElement.getAttribute('maskContentUnits') is "userSpaceOnUse" PASS successfullyParsed is true TEST COMPLETE