Add failing test case

graphene_django/tests/issues/test_520.py

@@ -0,0 +1,44 @@
+# https://github.com/graphql-python/graphene-django/issues/520
+
+import datetime
+
+from django import forms
+
+import graphene
+
+from graphene import Field, ResolveInfo
+from graphene.types.inputobjecttype import InputObjectType
+from py.test import raises
+from py.test import mark
+from rest_framework import serializers
+
+from ...types import DjangoObjectType
+from ...rest_framework.models import MyFakeModel
+from ...rest_framework.mutation import SerializerMutation
+from ...forms.mutation import DjangoFormMutation
+
+
+class MyModelSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = MyFakeModel
+        fields = "__all__"
+
+
+class MyForm(forms.Form):
+    text = forms.CharField()
+
+
+def test_can_use_form_and_serializer_mutations():
+    class MyMutation(SerializerMutation):
+        class Meta:
+            serializer_class = MyModelSerializer
+
+    class MyFormMutation(DjangoFormMutation):
+        class Meta:
+            form_class = MyForm
+
+    class Mutation(graphene.ObjectType):
+        my_mutation = MyMutation.Field()
+        my_form_mutation = MyFormMutation.Field()
+
+    graphene.Schema(mutation=Mutation)