chromium/third_party/blink/web_tests/fast/forms/select/selected-index-value.html

<html >
<body>
<p>This tests that we can find the selected value of a dropdown when this format is used: [select_name][this.selectedIndex].value.
See bug 798404. </p>

<script>
if (window.testRunner)
    testRunner.dumpAsText();

function test(selected_value) {
if (selected_value == 'C') {
   document.getElementById("sourceViewDiv").innerHTML=' This test: PASSED!';
}
}
</script>

<form>

<select name="URL" onChange="javascript:test(URL[this.selectedIndex].value);" >
<option value="A">A</option>
<option value="B">B</option>
<option value="C">C</option>
</select>

<div id='sourceViewDiv'>This test: FAILED</div>

<script>
var x=document.getElementsByTagName('select')[0];
x.options[2].selected=true;
var evt = document.createEvent("HTMLEvents");
evt.initEvent("change", true, true);
x.dispatchEvent(evt);
</script>

</form> 


</body>
</html>