chromium/third_party/blink/web_tests/svg/animations/animate-restart-never.html

<!DOCTYPE html>
<script>
if (window.testRunner)
    testRunner.waitUntilDone();

function click(x,y) {
    if (window.eventSender) {
        eventSender.mouseMoveTo(x, y);
        eventSender.mouseDown();
        eventSender.mouseUp();
    }
}

function animationEnded() {
    click(50,50);
    testRunner.notifyDone();
}
</script>
<svg>
    <rect id="rect" width="100px" height="100px" fill="red">
    <animate
        begin="0s; rect.click"
        dur="0.05s"
        attributeName="fill"
        from="red" to="green"
        fill="freeze"
        restart="never"
        onend="animationEnded()"/>
    </rect>
</svg>