Fix a review related code snippet

arkindex_worker/worker/entity.py

@@ -18,7 +18,9 @@ class EntityType(Enum):
 
 
 class EntityMixin(object):
-    def create_entity(self, element, name, type, corpus, metas=None, validated=None):
+    def create_entity(
+        self, element, name, type, corpus=None, metas=None, validated=None
+    ):
         """
         Create an entity on the given corpus through API
         Return the ID of the created entity

tests/test_elements_worker/test_entities.py

@@ -90,14 +90,13 @@ def test_create_entity_wrong_type(mock_elements_worker):
 def test_create_entity_wrong_corpus(monkeypatch, mock_elements_worker):
     elt = Element({"id": "12341234-1234-1234-1234-123412341234"})
 
-    # Triggering an error on metas param, giving corpus=None should work since
+    # Triggering an error on metas param, not giving corpus should work since
     # ARKINDEX_CORPUS_ID environment variable is set on mock_elements_worker
     with pytest.raises(AssertionError) as e:
         mock_elements_worker.create_entity(
             element=elt,
             name="Bob Bob",
             type=EntityType.Person,
-            corpus=None,
             metas="wrong metas",
         )
     assert str(e.value) == "metas should be of type dict"