chromium/third_party/blink/web_tests/svg/animations/resources/animation-policy.svg

<svg xmlns="http://www.w3.org/2000/svg">

<rect x="50" y="0" width="100" height="100" fill="green">
<animate id="animation" attributeName="y" begin="0s" dur="3s" values="30;50;100" calcMode="discrete" repeatCount="indefinite"/>
</rect>
</svg>