Fix BaseMeshTopology inheritance (#385)

Author: alxbilger

bindings/Sofa/src/SofaPython3/Sofa/Core/Binding_BaseMeshTopology.cpp

@@ -37,7 +37,7 @@ using namespace sofa::core::topology;
 namespace sofapython3 {
 
 void moduleAddBaseMeshTopology(py::module& m) {
-    py::class_<BaseMeshTopology, Base, py_shared_ptr<BaseMeshTopology>> c (m, "BaseMeshTopology");
+    py::class_<BaseMeshTopology, Topology, py_shared_ptr<BaseMeshTopology>> c (m, "BaseMeshTopology");
 
     /// register the BaseMeshTopology binding in the downcasting subsystem
     PythonFactory::registerType<BaseMeshTopology>([](sofa::core::objectmodel::Base* object)

bindings/Sofa/src/SofaPython3/Sofa/Core/Binding_Topology.cpp

@@ -36,7 +36,7 @@ using namespace sofa::core::topology;
 namespace sofapython3 {
 
 void moduleAddTopology(py::module& m) {
-    py::class_<Topology, Base, py_shared_ptr<Topology>> c (m, "Topology");
+    py::class_<Topology, BaseObject, py_shared_ptr<Topology>> c (m, "Topology");
 }
 
 } // namespace sofapython3

bindings/Sofa/tests/Core/BaseObject.py

@@ -64,8 +64,12 @@ def test_getName(self):
 
     def test_getCategories(self):
         root = create_scene("rootNode")
-        c = root.addObject("MechanicalObject", name="t")
-        self.assertEqual(c.getCategories(), ["MechanicalState"])
+
+        mecha = root.addObject("MechanicalObject", name="t")
+        self.assertEqual(mecha.getCategories(), ["MechanicalState"])
+
+        topo = root.addObject("MeshTopology", name="topology")
+        self.assertEqual(topo.getCategories(), ["Topology"])
 
     def test_getPathName(self):
         root = create_scene("rootNode")