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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../js/resources/js-test-pre.js"></script>
</head>
<body id="body">
<div id="console"></div>
<script>
if (window.internals)
window.internals.enableMockSpeechSynthesizer(document);
description("This tests that passing an argument other than a SpeechSynthesisUtterance to speechSynthesis.speak throws a TypeError exception.");
shouldThrow("speechSynthesis.speak()", '"TypeError: Failed to execute \'speak\' on \'SpeechSynthesis\': 1 argument required, but only 0 present."');
shouldThrow("speechSynthesis.speak(0)", '"TypeError: Invalid utterance argument"');
shouldThrow("speechSynthesis.speak('')", '"TypeError: Invalid utterance argument"');
shouldThrow("speechSynthesis.speak(document.body)", '"TypeError: Invalid utterance argument"');
shouldThrow("speechSynthesis.speak({})", '"TypeError: Invalid utterance argument"');
shouldThrow("speechSynthesis.speak((new SpeechSynthesisUtterance()).text = 'hello')", '"TypeError: Invalid utterance argument"');
</script>
</body>
</html>
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