<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=405242 --> <head> <title>Test for Bug 405252</title> <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=405242">Mozilla Bug 405242</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script class="testbody" type="text/javascript"> /** Test for Bug 405242 **/ var sel = document.createElement("select"); sel.appendChild(new Option()); sel.appendChild(new Option()); sel.appendChild(new Option()); opt = new Option(); opt.value = 10; sel.appendChild(opt); sel.options.remove(0); sel.options.remove(1000); sel.options.remove(-1); is(sel.length, 1, "Unexpected option collection length"); is(sel[0].value, "10", "Unexpected remained option"); </script> </pre> </body> </html>