test_bug719515.html (877B)
1 <!doctype html> 2 <!-- 3 https://bugzilla.mozilla.org/show_bug.cgi?id=719515 4 --> 5 <title>Test for Bug 719515</title> 6 <script src="/tests/SimpleTest/SimpleTest.js"></script> 7 <link rel="stylesheet" href="/tests/SimpleTest/test.css"> 8 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=719515">Mozilla Bug 719515</a> 9 <p id="display"></p> 10 <div id="content" style="display: none"></div> 11 <pre id="test"> 12 <script> 13 getSelection().collapse(document.body, 0); 14 var range = getSelection().getRangeAt(0); 15 getSelection().extend(document.body, 1); 16 isnot(range, getSelection().getRangeAt(0), 17 "extend() must replace existing ranges, not mutate them"); 18 range = getSelection().getRangeAt(0); 19 getSelection().extend(document.body, 1); 20 isnot(range, getSelection().getRangeAt(0), 21 "extend() must replace existing ranges, not mutate them (even for no-op extend()s"); 22 </script>