<!doctype html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=719518 --> <title>Test for Bug 719518</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" href="/tests/SimpleTest/test.css"> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=719518">Mozilla Bug 719518</a> <p id="display"></p> <div id="content" style="display: none"></div> <pre id="test"> <script> var thrown = false; try { getSelection().extend(document.body, 0); } catch(e) { thrown = true; is(e.name, "InvalidStateError", "Need to throw InvalidStateError for extend() with no ranges"); ok(e instanceof DOMException, "Need to throw DOMException for extend() with no ranges"); is(e.code, DOMException.INVALID_STATE_ERR, "Need to throw INVALID_STATE_ERR for extend() with no ranges"); } ok(thrown, "Need to throw exception for extend() with no ranges"); </script>