track-cue-empty.html (723B)
1 <!DOCTYPE html> 2 <title>Invoke getCueAsHTML() on an empty cue</title> 3 <script src="/resources/testharness.js"></script> 4 <script src="/resources/testharnessreport.js"></script> 5 <script> 6 test(function() { 7 var emptyCue = new VTTCue(0, 0, ""); 8 var fragment = emptyCue.getCueAsHTML(); 9 10 // The getCueAsHTML() method should return a document fragment. 11 assert_true(fragment instanceof DocumentFragment); 12 13 // The document fragment should have one child, an empty Text node. 14 assert_equals(fragment.childNodes.length, 1); 15 assert_equals(fragment.childNodes[0].constructor.name, Text.name); 16 assert_equals(fragment.childNodes[0].length, 0); 17 assert_equals(fragment.childNodes[0].data, ""); 18 }); 19 </script>