-#=========================================================================
-# Trying to duplicate/remove the root
-#=========================================================================
-aSession.startOperation()
-aSession.moduleDocument().addFeature("Duplicate")
-aSession.finishOperation()
-assert(aSession.activeDocument().id() == aSession.moduleDocument().id())
-assert(aSession.moduleDocument().size("Parts") == 0)
-aSession.startOperation()
-aSession.moduleDocument().addFeature("Remove")
-aSession.finishOperation()
-assert(aSession.activeDocument().id() == aSession.moduleDocument().id())
-assert(aSession.moduleDocument().size("Parts") == 0)
-#=========================================================================
-# End of test
-#=========================================================================