diff --git a/mlair/reference_data_handler/abstract_reference_data_handler.py b/mlair/reference_data_handler/abstract_reference_data_handler.py
index b97df20d1cc2ee72a427daf7b814c7d00bb587e3..19c102946f4958992c82c7cf31d1281baa7418b9 100644
--- a/mlair/reference_data_handler/abstract_reference_data_handler.py
+++ b/mlair/reference_data_handler/abstract_reference_data_handler.py
@@ -61,4 +61,5 @@ class AbstractReferenceb2share(AbstractReferenceModel):
         check_path_and_create(tmp_download_path)
         wget.download(f"{self.b2share_url}/{self.b2share_key}",
                       out=f"{tmp_download_path}{self.b2share_key}",
-                      bar=self.bar_custom)
\ No newline at end of file
+                      bar=self.bar_custom
+                      )
diff --git a/test/test_reference_data_handler/test_abstract_reference_data_handler.py b/test/test_reference_data_handler/test_abstract_reference_data_handler.py
index 98267fc913df299647c0fe8a1d95074e5d22bf04..1740196b50e11bda3efcb5187adef27d64409471 100644
--- a/test/test_reference_data_handler/test_abstract_reference_data_handler.py
+++ b/test/test_reference_data_handler/test_abstract_reference_data_handler.py
@@ -50,5 +50,6 @@ class TestAbstractReferenceb2share:
     def test_bar_custom(self):
         pass
 
+    @mock.patch(self, )
     def test_download_from_b2share(self):
         pass
\ No newline at end of file
diff --git a/test/test_reference_data_handler/test_intellio3_v1_reference.py b/test/test_reference_data_handler/test_intellio3_v1_reference.py
index 3608f8dd4304c3245d112771aba29cf196e68ad5..6582b99ec197f282a561bcdecd4d331cfc964327 100644
--- a/test/test_reference_data_handler/test_intellio3_v1_reference.py
+++ b/test/test_reference_data_handler/test_intellio3_v1_reference.py
@@ -41,5 +41,5 @@ class TestIntelliO3Reference:
         pass
 
     def test_make_reference_available_locally(self):
-        pass
+        io3 = IntelliO3Reference("IntelliO3-test", "DummyExtraPath/")