chromium/third_party/blink/web_tests/paint/invalidation/svg/stroke-opacity-update.svg

<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" onload="runRepaintAndPixelTest()">
<script xlink:href="../resources/text-based-repaint.js"/>
<circle cx="100" cy="100" r="100" fill="none" stroke="green" stroke-width="5px" stroke-opacity="0"/>
<script>
    function repaintTest() {
        document.getElementsByTagName("circle")[0].setAttribute("stroke-opacity", "1");
    }
</script>
</svg>