chromium/third_party/blink/web_tests/http/tests/media/video-buffered-range-contains-currentTime.html

<!DOCTYPE html>
<meta name="fuzzy" content="maxDifference=0-38;totalPixels=0-152">
<title>Test that the painted buffered range contains currentTime.</title>
<script src="../../media-resources/media-file.js"></script>
<video controls></video>
<script>
var video = document.querySelector("video");

if (window.testRunner) {
  testRunner.waitUntilDone();
}

video.onended = function() {
  if (window.testRunner) {
    testRunner.notifyDone();
  }
};

video.onseeked = function() {
    video.play();
};

video.onloadedmetadata = function() {
    video.currentTime = video.duration - 0.5;
};

var mediaFile = "../../../media/content/test.oga";
var type = mimeTypeForExtension(mediaFile.split(".").pop());
video.src = "http://127.0.0.1:8000/media/video-throttled-load.cgi?name=" + mediaFile + "&throttle=5000&nph=1&type=" + type;
</script>