<script>
if (window.layoutTestController)
     layoutTestController.dumpEditingCallbacks();
</script>
<p>The last paragraph of the incoming fragment should be in the same paragraph as 'three'.</p> 
<div id="test" contenteditable="true">one three</div>

<script>
var s = window.getSelection();
var e = document.getElementById("test");

s.setPosition(e, 0);
s.modify("move", "forward", "word");
s.modify("move", "forward", "character");

document.execCommand("InsertHTML", false , "<br class='Apple-interchange-newline'><div>two</div>");

</script>