<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=502818 --> <head> <title>Test for Bug 502818</title> <script type="application/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=502818">Mozilla Bug 502818</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 502818 **/ var count = 0; function listener(evt) { ++count; is(evt.foo, 'bar', "Event.prototype should be accessible from " + evt.type); } Event.prototype.foo = 'bar'; window.addEventListener('DOMMouseScroll', listener, false); window.addEventListener('MozMousePixelScroll', listener, false); window.addEventListener('foobar', listener, false); var e = document.createEvent("mousescrollevents"); e.initMouseScrollEvent("DOMMouseScroll", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null, 1); window.dispatchEvent(e); e.initMouseScrollEvent("MozMousePixelScroll", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null, 1); window.dispatchEvent(e); e.initMouseScrollEvent("foobar", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null, 1); window.dispatchEvent(e); is(count, 3, "Wrong number tests run!"); </script> </pre> </body> </html>