LayoutTests/editing/pasteboard/4242293-1.html

<script>
if (window.layoutTestController)
     layoutTestController.dumpEditingCallbacks();
</script>
<p>This tests to make sure that createMarkup puts an interchange newline on the pasteboard for a selection ending at the end of a block.  Both regions below should have contents that are identical.</p>

<div id="copy" contenteditable="true"><div><div>foo</div>bar</div>baz</div>
<div id="paste" contenteditable="true">foo</div>

<script>
var sel = window.getSelection();
var e = document.getElementById("copy");
sel.setPosition(e, 0);
sel.modify("move", "forward", "word");
sel.modify("extend", "forward", "line");
sel.modify("extend", "forward", "line");
document.execCommand("Copy");

e = document.getElementById("paste");
sel.setPosition(e, 0);
sel.modify("move", "forward", "word");
document.execCommand("Paste");
</script>