LayoutTests/editing/inserting/edited-whitespace-1.html

<p>This tests that edited whitespaces aren't all nbsps.  When the region becomes non-editable, Hello and World should still be on different lines.  This demonstrates a bug: the div's focus halo doesn't go away when it becomes non-editable.</p>
<div id="div" contenteditable="true" style="border: 1px solid black; width: 60px;"></div>
<ol id="console"></ol>
<script>
function log(str) {
    var li = document.createElement("li");
    li.appendChild(document.createTextNode(str));
    var console = document.getElementById("console");
    console.appendChild(li);
}

var div = document.getElementById("div");
var sel = window.getSelection();
sel.setPosition(div, 0);
document.execCommand("InsertText", false, " ");
document.execCommand("InsertText", false, "Hello");
document.execCommand("InsertText", false, " ");
document.execCommand("InsertText", false, " ");
document.execCommand("InsertText", false, " ");
document.execCommand("InsertText", false, " ");
document.execCommand("InsertText", false, " ");
document.execCommand("InsertText", false, "World");
document.execCommand("InsertText", false, " ");

var innerText = div.innerHTML;

// Check the pattern produced.  This might change in the future.
var expected = "&nbsp;Hello &nbsp; &nbsp; World&nbsp;";
var nbsp = false;
for (var i = 0; i < innerText.length; i++) {
    if(innerText[i] != expected[i])
       log("Error: Character " + i + " of the editable region was not what was expected.");
}

div.contentEditable = "false";
// When we turn content editability off, we'll see Hello and World on the same line if editing is using all nbsps.
</script>