http/tests/xmlhttprequest/event-target.html

<html>
<body>
<p>Tests for <a href="https://bugs.webkit.org/show_bug.cgi?id=11053"> bug 11053</a> - 
XMLHttpRequest should be an EventTarget.</p>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();
    
    var console_messages = document.createElement("ul");
    document.body.appendChild(console_messages);
    
    function log(message)
    {
        var item = document.createElement("li");
        item.appendChild(document.createTextNode(message));
        console_messages.appendChild(item);
    }


    function onLoad() {
        log("onload: this = " + this);
        req.removeEventListener("load", eventListener4, false);
    }

    function eventListener() { log("eventListener: this = " + this); }

    function eventListener2() {
        log("eventListener2: this = " + this);
        // Removing this event listener should prevent it from firing.
        req.removeEventListener("load", eventListener3, false);
    }

    function eventListener3() { log("eventListener3: this = " + this); }
    
    // This listener is removed before it gets a chance to fire.
    function eventListener4() { log("eventListener4: this = " + this); }

    function fooListener() { log("fooListener: this = " + this); }


    req = new XMLHttpRequest;
    req.onload = onLoad;
    req.addEventListener("load", eventListener, false);
    req.addEventListener("load", eventListener2, false);
    req.addEventListener("load", eventListener, false); // eventListener must not be called  twice, but it does in Mozilla 1.8.
    req.addEventListener("load", eventListener3, false);
    
    // XMLHttpRequest.dispatchEvent is not implemeted in Mozilla 1.8
    // Furthermore, they raise an exception when trying to add any event listener except for "load" and "error".
    try {
        event = document.createEvent("Event");
        event.initEvent("foo", false, false);
        req.addEventListener("foo", fooListener, false);
        req.dispatchEvent(event);
    } catch (ex) {
        log("foo: " + ex);
    }

    req.open("GET", "resources/reply.xml", false);
    req.send("");

    // WebKit doesn't remove event listeners when re-opening a request, unlike Mozilla.
    req.open("GET", "resources/reply.xml", false);
    req.send("");

</script>
</body>
</html>