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include/aidge/graph/GraphView.hpp

@@ -402,6 +402,8 @@ public:
 
     inline void updateNodeName(NodePtr nodeToRename, const std::string& newName){
         const std::string& oldName = nodeToRename->name();
+        AIDGE_ASSERT(mNodeRegistry.find(newName) != mNodeRegistry.end(), "Name {} is already used in graph {}.", newName, name());
+
         if (nodeToRename->name() != ""){ // Case node already had a name
             AIDGE_ASSERT(mNodeRegistry.find(oldName) != mNodeRegistry.end(), "No node named {} in graph {}, the graph may be corrupted !", oldName, name());
             mNodeRegistry[newName] = mNodeRegistry[oldName];