Index: /CKEditor/tests/dt/core/htmlparser/htmlparser.html
===================================================================
--- /CKEditor/tests/dt/core/htmlparser/htmlparser.html	(revision 4322)
+++ /CKEditor/tests/dt/core/htmlparser/htmlparser.html	(revision 4323)
@@ -57,4 +57,13 @@
 				'Spaces compressing result doesn\'t match.' );
 		},
+
+		// Attribute name may contains Hypen and Dash.(#4351)
+		test_fromHtml_hypen_in_attribute_name : function()
+		{
+			assert.areSame( getTextAreaValue( 'htmlOriginal3' ),
+				htmlParse( getTextAreaValue( 'htmlOriginal3' ) ),
+				'Attributes doesn\'t match.' );
+		},
+		
 		name :document.title
 	};
@@ -87,4 +96,5 @@
 
 <textarea id="htmlResult2"><p>para graph</p><b>compress spaces</b></textarea>
+<textarea id="htmlOriginal3"><p attr-name="value" attr_name="value">text</p></textarea>
 </body>
 </html>