MAINT: parent needs to be given to identifiable in H5CFood

integrationtests/example_hdf5cfood.py

@@ -44,6 +44,7 @@ class ExampleH5CFood(H5CFood):
         super().create_identifiables()
         self.identifiable_root = db.Record()
         self.identifiable_root.add_property("hdf5File", self.crawled_file)
+        self.identifiable_root.add_parent("ExampleH5")
         self.identifiables.append(self.identifiable_root)
 
     def special_treatment(self, key, value, dtype):