Adapt the nbsp entity test for Opera (output isn't as important as the fact...

Adapt the nbsp entity test for Opera (output isn't as important as the fact that it's getting converted.

test/unit/manipulation.js

@@ -883,7 +883,8 @@ var testHtml = function(valueObj) {
 	equals( div.children().length, 2, "Make sure two child nodes exist." );
 	equals( div.children().children().length, 1, "Make sure that a grandchild exists." );
 
-	equals( jQuery("<div/>").html(valueObj("&#160;"))[0].innerHTML, "&nbsp;", "Make sure entities are passed through correctly." );
+	var space = jQuery("<div/>").html(valueObj("&#160;"))[0].innerHTML;
+	ok( /^\s$|^&nbsp;$/.test( space ), "Make sure entities are passed through correctly." );
 	equals( jQuery("<div/>").html(valueObj("&amp;"))[0].innerHTML, "&amp;", "Make sure entities are passed through correctly." );
 
 	jQuery("#main").html(valueObj("<style>.foobar{color:green;}</style>"));