Update tests/defences/detector/poison/test_activation_defence.py

Co-authored-by: Beat Buesser <[email protected]>

Author: keykholt

tests/defences/detector/poison/test_activation_defence.py

@@ -102,7 +102,8 @@ def test_wrong_parameters_4(self):
 
     @unittest.expectedFailure
     def test_wrong_parameters_5(self):
-        self.defence.set_params(ex_re_threshold=-1)
+        with self.assertRaises(ValueError):
+            self.defence.set_params(ex_re_threshold=-1)
 
     def test_activations(self):
         (x_train, _), (_, _), (_, _) = self.mnist