third_party/WebKit/LayoutTests/editing/selection/designmode-no-caret.html

<script>
function log(msg)
{
document.getElementById("console").appendChild(document.createTextNode(msg + "\n"));
}

if (window.testRunner)
     testRunner.dumpEditingCallbacks();
</script>
This tests to see that a caret is placed inside an editable document that is entirely editable even when no caret is requested programmatically.  We do this as a convenience.  Right now, we only do this convenience when a document's frame becomes first responder or when a document's window becomes key.
<pre id="console"></pre>
<script>
document.designMode = "on";
if (window.testRunner) {
    window.testRunner.waitUntilDone();
    window.testRunner.setMainFrameIsFirstResponder(false);
    window.testRunner.setMainFrameIsFirstResponder(true);

    var sel = window.getSelection();
    if (sel.anchorNode && sel.anchorNode == sel.focusNode && sel.anchorOffset == sel.focusOffset)
        log("Test Passed");
    else
        log("Test Failed - there should be a caret\n");

    window.testRunner.notifyDone();
}
</script>