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Test Info:
- Manifest: dom/html/test/forms/mochitest.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=942321">Mozilla Bug 942321</a>
<p id="display"></p>
<form id="form" href="">
<select required id="testselect">
<option id="placeholder" value="" selected>placeholder</option>
<option value="test" id="actualvalue">test</option>
<select>
<input type="submit" />
</form>
<script class="testbody" type="text/javascript">
var option = document.getElementById("actualvalue");
option.selected = true;
is(form.checkValidity(), true, "Select is required and should be valid");
var placeholder = document.getElementById("placeholder");
placeholder.selected = true;
is(form.checkValidity(), false, "Select is required and should be invalid");
placeholder.value = "not-invalid-anymore";
is(form.checkValidity(), true, "Select is required and should be valid when option's value is changed by javascript");
</script>
</pre>
</body>
</html>