chromium/third_party/blink/web_tests/html/selectlist/selectlist-typeahead-find.html

<!DOCTYPE html>
<html>
<head>
<script>
function recordIt()
{
    var selectlist = document.getElementById("selectlist");
    var res = document.getElementById("res");
    if (res.innerText != "FAIL")
        res.innerText = "PASS";
}

function testIt(ch, expectedValue)
{
    var selectlist = document.getElementById("selectlist");
    selectlist.focus();
    eventSender.keyDown(ch);
    if (selectlist.value != expectedValue)
        document.getElementById("res").innerText = "FAIL";
}

function test()
{
    if (!window.testRunner)
        return;

    testRunner.dumpAsText();
    testIt("c", "cherry");
}
</script>
</head>
<body onload="test()">
Verify type ahead selection fires onchange event.
<ol>
<li>Set focus to selectlist element</li>
<li>Type "c"</li>
<li>You see "cherry" in selectlist element and "PASS" below selectlist element.</li>
</ol>
<selectlist id="selectlist" onchange="recordIt()">
    <option>apple</option>
    <option>banana</option>
    <option>cherry</option>
</selectlist><br />
<div id="res"></div>
</html>