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19 lines
780 B
HTML
19 lines
780 B
HTML
<!doctype html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<iframe></iframe>
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<script>
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// using an utterance for different SpeechSynthesis instances should throw
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test(t => {
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// the utterance is short to make the test faster
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const utter = new SpeechSynthesisUtterance('1');
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const iframe = document.querySelector('iframe');
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assert_not_equals(speechSynthesis, iframe.contentWindow.speechSynthesis);
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speechSynthesis.speak(utter);
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// the spec doesn't say what exception to throw:
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// https://github.com/w3c/speech-api/issues/8
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assert_throws(null, () => {
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iframe.contentWindow.speechSynthesis.speak(utter);
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});
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}, 'Using the same SpeechSynthesisUtterance with two SpeechSynthesis instances');
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</script>
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