LayoutTests/editing/undo/undo-iframe-location-change.html

<script>
if (window.layoutTestController)
     layoutTestController.dumpEditingCallbacks();
</script>

<script src="../editing.js"></script>
<iframe name="iframe" src="../resources/contenteditable-iframe-src.html"></iframe>
<ul id="console"></ul>

<script>
function log(message) {
    var console = document.getElementById("console");
    var li = document.createElement("li");
    var text = document.createTextNode(message);
    li.appendChild(text);
    console.appendChild(li);
}

function part1() {

    // Hack to focus the frame, should be able to do frames['iframe'].focus()
    eventSender.mouseMoveTo(50, 50);
    eventSender.mouseDown();
    eventSender.mouseUp();
    
    // Hack to perform the editing command.  Should be able to 
    // call execCommand on the main document.
    frames['iframe'].document.execCommand('InsertText', false, 'c');
    
    window.location = window.location.toString() + "?part2";
}

function part2() {
    if (!document.queryCommandEnabled('Undo'))
        log("Success");
    else
        log("Failure, Undo was still enabled after the location changed.");
        
    window.layoutTestController.notifyDone();
}

function runTest() {
    if (!window.layoutTestController)
        return;

    if (window.location.toString().indexOf("?part2") == -1) {
        window.layoutTestController.waitUntilDone();
        window.layoutTestController.dumpAsText();
        // Give the iframe a moment to come into being.
        window.setTimeout(part1, 100);
    } else {
        part2();
    }

}

runTest();

</script>