Index: /CKEditor/tests/dt/plugins/htmldataprocessor/htmldataprocessor.html
===================================================================
--- /CKEditor/tests/dt/plugins/htmldataprocessor/htmldataprocessor.html	(revision 7171)
+++ /CKEditor/tests/dt/plugins/htmldataprocessor/htmldataprocessor.html	(revision 7172)
@@ -236,4 +236,12 @@
 			var expected = '<p>Some text</p>';
 			assert.areSame( expected, dataProcessor.toHtml( '<p>Some text<br></p>' ));
+		},
+
+		test_toHtml_ticket_7243 : function()
+		{
+			var dataProcessor = CKEDITOR.instances.editor1.dataProcessor;
+
+			assert.areSame( '<p><img data-cke-saved-src="image.png" src="image.png" data-cke-pa-onmouseout="this.src=\'out.png\'" data-cke-pa-onmouseover="this.src=\'over.png\'" /></p>',
+				dataProcessor.toHtml( '<p><img onmouseout="this.src=\'out.png\'" onmouseover="this.src=\'over.png\'" src="image.png" /></p>' ));
 		},