--- a/git/GitObject.st	Wed Sep 19 01:08:21 2012 +0000
+++ b/git/GitObject.st	Wed Sep 19 09:02:34 2012 +0000
@@ -74,6 +74,38 @@
     "Created: / 17-09-2012 / 21:16:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"
 ! !
 
+!GitObject methodsFor:'testing'!
+
+isBlob
+    ^false
+
+    "Created: / 19-09-2012 / 09:50:33 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+isCommit
+    ^false
+
+    "Created: / 19-09-2012 / 09:50:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+isTag
+    ^false
+
+    "Created: / 19-09-2012 / 09:50:28 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+isTree
+    ^false
+
+    "Created: / 19-09-2012 / 09:50:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+isTreeish
+    ^false
+
+    "Created: / 19-09-2012 / 09:51:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+! !
+
 !GitObject class methodsFor:'documentation'!
 
 version_SVN