chromium/third_party/blink/web_tests/media/unsupported-tracks.html

<!DOCTYPE html>
<title>Test that QuickTime file with unsupported track types only, generates an error.</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<video></video>
<script>
async_test(function(t) {
    var video = document.querySelector("video");
    video.src = "content/unsupported_track.ogv";
    video.onerror = t.step_func_done();
});
</script>