Index: test/unit/core.js
===================================================================
--- test/unit/core.js	(revision 5872)
+++ test/unit/core.js	(working copy)
@@ -1364,7 +1364,7 @@
 	var div = jQuery("div").addClass("test").removeClass("test"),
 		pass = true;
 	for ( var i = 0; i < div.size(); i++ ) {
-		if ( div.get(i).className.indexOf("test") != -1 ) pass = false;
+		if ( div.get(i).className.search(/(^|\s)test(\s|$)/) != -1 ) pass = false;
 	}
 	ok( pass, "Remove Class" );
 
@@ -1373,7 +1373,7 @@
 	div.removeClass("test").removeClass("bar").removeClass("foo");
 	var pass = true;
 	for ( var i = 0; i < div.size(); i++ ) {
-	 if ( div.get(i).className.match(/test|bar|foo/) ) pass = false;
+	 if ( div.get(i).className.search(/(^|\s)(test|bar|foo)(\s|$)/) != -1 ) pass = false;
 	}
 	ok( pass, "Remove multiple classes" );