fixes

Author: fkiraly

extension_templates/experiments.py

@@ -143,11 +143,13 @@ def _paramnames(self):
 
         Returns
         -------
-        list of str
+        list of str, or None
             The parameter names of the search parameters.
+            If not known or arbitrary, return None.
         """
         # for every instance, this should return the correct parameter names
         # i.e., the maximal set of keys of the dict expected by _score
+        # (if not known or arbitrary, return None)
         return ["score_param1", "score_param2"]
 
     # todo: implement this, mandatory

src/hyperactive/base/_experiment.py

@@ -49,8 +49,9 @@ def _paramnames(self):
 
         Returns
         -------
-        list of str
+        list of str, or None
             The parameter names of the search parameters.
+            If not known or arbitrary, return None.
         """
         return None
 

src/hyperactive/tests/test_all_objects.py

@@ -167,9 +167,10 @@ def test_paramnames(self, object_class):
         for inst, obj_param in zip(inst_params, obj_params):
             obj_inst = object_class(**inst)
             paramnames = obj_inst.paramnames()
-            assert set(obj_param.keys()) <= set(
-                paramnames
-            ), f"Parameter names do not match: {paramnames} != {obj_param}"
+            if paramnames is not None:
+                assert set(obj_param.keys()) <= set(
+                    paramnames
+                ), f"Parameter names do not match: {paramnames} != {obj_param}"
 
     def test_score_function(self, object_class):
         """Test that substituting into score works as intended."""