Merge pull request #1496 from VesnaT/rf_msg

[FIX] OWRandomForest: Show/hide error message

Author: lanzagar

Orange/widgets/classify/owrandomforest.py

@@ -76,10 +76,11 @@ def create_learner(self):
         return self.LEARNER(preprocessors=self.preprocessors, **common_args)
 
     def check_data(self):
+        self.Error.not_enough_features.clear()
         if super().check_data():
             n_features = len(self.data.domain.attributes)
             if self.use_max_features and self.max_features > n_features:
-                self.Error.data_error(n_features)
+                self.Error.not_enough_features(n_features)
                 self.valid_data = False
         return self.valid_data
 

Orange/widgets/tests/base.py

@@ -319,5 +319,6 @@ def test_parameters(self):
                 model = self.get_output(self.model_name)
                 if model is not None:
                     self.assertEqual(model.params.get(element.name), val)
+                    self.assertFalse(self.widget.Error.active)
                 else:
                     self.assertTrue(self.widget.Error.active)