This test checks the SVGColor API On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Check initial color values PASS (stopColor = stopElement.style.getPropertyCSSValue('stop-color')).toString() is "[object SVGColor]" PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS (rgbColor = stopColor.rgbColor).toString() is "[object RGBColor]" PASS rgbColor.red.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 255 PASS rgbColor.green.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS rgbColor.blue.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS stopElement.style.stopColor is "#ff0000" PASS document.defaultView.getComputedStyle(stopElement).stopColor is "rgb(255, 0, 0)" Try invalid arguments for setColor() PASS stopColor.setColor(null, null, null) threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_RGBCOLOR, svgElement, ''); threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_RGBCOLOR, '', '') threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_CURRENTCOLOR + 1, '', ''); threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.setColor() threw exception TypeError: Not enough arguments. PASS stopColor.setColor(stopColor) threw exception TypeError: Not enough arguments. Try assigning to the readonly colorType property, which silently fails PASS stopColor.colorType = SVGColor.SVG_COLORTYPE_UNKKNOWN; is undefined. PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS stopElement.style.stopColor is "#ff0000" PASS document.defaultView.getComputedStyle(stopElement).stopColor is "rgb(255, 0, 0)" Test using setColor() and SVG_COLORTYPE_UNKNOWN PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_UNKKNOWN, '', '') threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_UNKKNOWN, 'rgb(0,128,128)', '') threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_UNKKNOWN, '', 'icc-color(myRGB, 0, 1, 2)') threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_UNKKNOWN, 'rgb(0,0,0)', 'icc-color(myRGB, 0, 1, 2)') threw exception Error: NoModificationAllowedError: DOM Exception 7. Test using setColor() and SVG_COLORTYPE_RGBCOLOR_ICCCOLOR PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_RGBCOLOR_ICCCOLOR, 'rgb(77,0,77)', 'icc-color(myRGB, 0, 1, 2)') threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS (rgbColor = stopColor.rgbColor).toString() is "[object RGBColor]" PASS rgbColor.red.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 255 PASS rgbColor.green.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS rgbColor.blue.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS stopElement.style.stopColor is "#ff0000" PASS document.defaultView.getComputedStyle(stopElement).stopColor is "rgb(255, 0, 0)" Test using setColor() and SVG_COLORTYPE_CURRENTCOLOR PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_CURRENTCOLOR, 'rgb(77,0,77)', 'icc-color(myRGB, 0, 1, 2)') threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS (rgbColor = stopColor.rgbColor).toString() is "[object RGBColor]" PASS rgbColor.red.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 255 PASS rgbColor.green.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS rgbColor.blue.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS stopElement.style.stopColor is "#ff0000" PASS document.defaultView.getComputedStyle(stopElement).stopColor is "rgb(255, 0, 0)" Test using setColor() and SVG_COLORTYPE_RGBCOLOR PASS stopColor.setColor(SVGColor.SVG_COLORTYPE_RGBCOLOR, 'rgb(0,77,0)', 'icc-color(myRGB, 0, 1, 2)') threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS stopColor.colorType is SVGColor.SVG_COLORTYPE_RGBCOLOR PASS (rgbColor = stopColor.rgbColor).toString() is "[object RGBColor]" PASS rgbColor.red.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 255 PASS rgbColor.green.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS rgbColor.blue.getFloatValue(CSSPrimitiveValue.CSS_NUMBER) is 0 PASS document.defaultView.getComputedStyle(stopElement).stopColor is "rgb(255, 0, 0)" PASS successfullyParsed is true TEST COMPLETE