add test on reassigment

Author: fredroy

examples/tests/testReassignmentController.py

@@ -0,0 +1,46 @@
+import Sofa
+
+g_nb_controllers = 3
+g_controllers = []
+
+class TestReassignmentController(Sofa.Core.Controller):
+
+    def __init__(self, *args, **kwargs):
+        Sofa.Core.Controller.__init__(self, *args, **kwargs)
+
+    def onAnimateBeginEvent(self, event):
+        print(f"{self.name.value} : onAnimateBeginEvent")
+        pass
+
+    def modifiedAnimateBeginEvent(self, event):
+        print(f"{self.name.value} : modifiedAnimateBeginEvent")
+        pass
+
+def createScene(root):
+    root.dt = 0.01
+    root.bbox = [[-1, -1, -1], [1, 1, 1]]
+    root.addObject('DefaultVisualManagerLoop')
+    root.addObject('DefaultAnimationLoop')
+
+    for i in range(g_nb_controllers):
+        controller = root.addObject(TestReassignmentController(name=f"Controller{i}"))
+        g_controllers.append(controller)
+
+
+def main():
+    root = Sofa.Core.Node("root")
+    createScene(root)
+    Sofa.Simulation.initRoot(root)
+
+    # one step with the "fixed" implementation of onAnimateBeginEvent
+    Sofa.Simulation.animate(root, root.dt.value) # should print "ControllerX : onAnimateBeginEvent"
+
+    # reassign onAnimateBeginEvent method
+    for controller in g_controllers:
+        controller.onAnimateBeginEvent = controller.modifiedAnimateBeginEvent
+
+    Sofa.Simulation.animate(root, root.dt.value) # should print "ControllerX : modifiedAnimateBeginEvent"
+
+
+if __name__ == '__main__':
+    main()