third_party/WebKit/LayoutTests/fast/speechsynthesis/speech-synthesis-utterance-basics.html

   1 <!DOCTYPE html>
   2 <title>SpeechSynthesisUtterance: Basic interface tests</title>
   3 <script src="../../resources/testharness.js"></script>
   4 <script src="../../resources/testharnessreport.js"></script>
   5 <script>
   6 setup(function() {
   7   if (window.internals)
   8     window.internals.enableMockSpeechSynthesizer(document);
   9 });
  10
  11 test(function() {
  12   var utterance = new SpeechSynthesisUtterance(" ");
  13   var restrictedFloatAttributes = [ 'volume', 'rate', 'pitch' ];
  14   for (var i in restrictedFloatAttributes) {
  15     var attr = restrictedFloatAttributes[i];
  16     var before = utterance[attr];
  17     assert_throws(new TypeError, function() { utterance[attr] = NaN; }, attr);
  18     assert_throws(new TypeError, function() { utterance[attr] = Infinity; }, attr);
  19     assert_equals(utterance[attr], before, 'value is unchanged.');
  20   }
  21 }, 'SpeechSynthesisUtterance, setting non-finite values.');
  22 </script>