fix test

Author: jnak

graphene_sqlalchemy/tests/test_batching.py

@@ -604,8 +604,6 @@ class Meta:
             batching = False
             connection_field_factory = BatchSQLAlchemyConnectionField.from_relationship
 
-        articles = ORMField(batching=False)
-
     class ArticleType(SQLAlchemyObjectType):
         class Meta:
             model = Article
@@ -637,7 +635,13 @@ def resolve_reporters(self, info):
         """, context_value={"session": session})
         messages = sqlalchemy_logging_handler.messages
 
-    select_statements = [message for message in messages if 'SELECT' in message and 'FROM articles' in message]
+    if is_sqlalchemy_version_less_than('1.3'):
+        # The batched SQL statement generated is different in 1.2.x
+        # SQLAlchemy 1.3+ optimizes out a JOIN statement in `selectin`
+        # See https://git.io/JewQu
+        select_statements = [message for message in messages if 'SELECT' in message and 'JOIN articles' in message]
+    else:
+        select_statements = [message for message in messages if 'SELECT' in message and 'FROM articles' in message]
     assert len(select_statements) == 1
 
 
@@ -657,8 +661,6 @@ class Meta:
             batching = True
             connection_field_factory = default_connection_field_factory
 
-        articles = ORMField(batching=True)
-
     class ArticleType(SQLAlchemyObjectType):
         class Meta:
             model = Article