document-createEvent-mandatory-arg.html

<!DOCTYPE html>
<html>
<head>
<script src="../../resources/js-test.js"></script>
</head>
<body>
<script>
description("Tests that Document.createEvent() throws for SVG Documents when given no argument.");

var svgDoc = document.implementation.createDocument("http://www.w3.org/2000/svg", "svg", null);
shouldBe("svgDoc.__proto__", "XMLDocument.prototype");
shouldBe("svgDoc.__proto__.__proto__", "Document.prototype");
shouldThrow("svgDoc.createEvent()", '"TypeError: Failed to execute \'createEvent\' on \'Document\': 1 argument required, but only 0 present."');
shouldNotThrow("svgDoc.createEvent('MouseEvents')");
</script>
</body>
</html>

chromium/third_party/blink/web_tests/svg/dom/document-createEvent-mandatory-arg.html