FIX except known error in unit test

Author: mfeurer

test/test_pipeline/test_classification.py

@@ -13,6 +13,7 @@
 import sklearn.ensemble
 import sklearn.svm
 from sklearn.utils.testing import assert_array_almost_equal
+from xgboost.core import XGBoostError
 
 from ConfigSpace.configuration_space import ConfigurationSpace, \
     Configuration
@@ -292,6 +293,13 @@ def _test_configurations(self, configurations_space, make_sparse=False,
                     print(traceback.format_exc())
                     print(config)
                     raise e
+            except XGBoostError as e:
+                if "std::bad_alloc" in e.args[0]:
+                    continue
+                else:
+                    print(traceback.format_exc())
+                    print(config)
+                    raise e
 
     def test_get_hyperparameter_search_space(self):
         cs = SimpleClassificationPipeline.get_hyperparameter_search_space()