Index: /CKEditor/tests/tt/5646/1.html
===================================================================
--- /CKEditor/tests/tt/5646/1.html	(revision 5446)
+++ /CKEditor/tests/tt/5646/1.html	(revision 5446)
@@ -0,0 +1,45 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+	<title>Ticket: #5646</title>
+	<meta name="tags" content="editor,unit,all">
+	<script type="text/javascript" src="../../../cktester/cell.js"></script>
+	<script type="text/javascript">
+	//<![CDATA[
+
+var tc;
+
+CKEDITOR.test.addTestCase( tc = (function()
+{
+	// Local reference to the "assert" object.
+	var assert = CKEDITOR.test.assert;
+
+	function testParser( input, expected )
+	{
+		var fragment = CKEDITOR.htmlParser.fragment.fromHtml( input, 'p' ),
+			writer = new CKEDITOR.htmlParser.basicWriter();
+
+		fragment.writeHtml( writer );
+
+		assert.areSame( expected, writer.getHtml( true ) );
+	}
+
+	return {
+
+		// We should leave inline element in case comment enclosed.  
+		test_comment_inside_inline : function()
+		{
+			testParser(	'<p><span><!--comment--></span></p>',
+						'<p><span><!--comment--></span></p>' );
+		},
+
+		name : document.title
+	};
+})() );
+
+	//]]>
+	</script>
+</head>
+<body>
+</body>
+</html>
