minor: Simplify code

Author: abawchen

graphene_mongo/tests/test_fields.py

@@ -6,22 +6,29 @@
 def test_article_field_args():
     field = MongoengineConnectionField(nodes.ArticleNode)
 
-    field_args = ['id', 'headline', 'pub_date']
-    assert set(field.field_args.keys()) == set(field_args)
+    field_args = {'id', 'headline', 'pub_date'}
+    assert set(field.field_args.keys()) == field_args
 
-    reference_args = ['editor', 'reporter']
-    assert set(field.reference_args.keys()) == set(reference_args)
+    reference_args = {'editor', 'reporter'}
+    assert set(field.reference_args.keys()) == reference_args
 
-    default_args = ['after', 'last', 'first', 'before']
-    args = field_args + reference_args + default_args
-    assert set(field.args) == set(args)
+    default_args = {'after', 'last', 'first', 'before'}
+    args = field_args | reference_args | default_args
+    assert set(field.args) == args
 
 
 def test_reporter_field_args():
     field = MongoengineConnectionField(nodes.ReporterNode)
 
-    field_args = ['id', 'first_name', 'last_name', 'email', 'awards']
-    assert set(field.field_args.keys()) == set(field_args)
+    field_args = {'id', 'first_name', 'last_name', 'email', 'awards'}
+    assert set(field.field_args.keys()) == field_args
+
+
+def test_editor_field_args():
+    field = MongoengineConnectionField(nodes.EditorNode)
+
+    field_args = {'id', 'first_name', 'last_name', 'metadata'}
+    assert set(field.field_args.keys()) == field_args
 
 
 def test_field_args_with_property():