added ModelSerializer tests

django_test_settings.py

@@ -8,6 +8,7 @@ SECRET_KEY = 1
 
 INSTALLED_APPS = [
     'graphene_django',
+    'graphene_django.rest_framework',
     'graphene_django.tests',
     'starwars',
 ]

graphene_django/rest_framework/tests/test_mutation.py

@@ -1,18 +1,16 @@
-from django.db import models
+import datetime
+
 from graphene import Field
 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 ..models import MyFakeModel
 from ..mutation import SerializerMutation
 
 
-class MyFakeModel(models.Model):
-    cool_name = models.CharField(max_length=50)
-    created = models.DateTimeField(auto_now_add=True)
-
-
 class MyModelSerializer(serializers.ModelSerializer):
     class Meta:
         model = MyFakeModel
@@ -90,6 +88,19 @@ def test_mutate_and_get_payload_success():
     assert result.errors is None
 
 
+@mark.django_db
+def test_model_mutate_and_get_payload_success():
+    class MyMutation(SerializerMutation):
+        class Meta:
+            serializer_class = MyModelSerializer
+
+    result = MyMutation.mutate_and_get_payload(None, None, **{
+        'cool_name': 'Narf',
+    })
+    assert result.errors is None
+    assert result.cool_name == 'Narf'
+    assert isinstance(result.created, datetime.datetime)
+
 def test_mutate_and_get_payload_error():
 
     class MyMutation(SerializerMutation):
@@ -98,4 +109,14 @@ def test_mutate_and_get_payload_error():
 
     # missing required fields
     result = MyMutation.mutate_and_get_payload(None, None, **{})
-    assert len(result.errors) > 0
+    assert len(result.errors) > 0
+
+def test_model_mutate_and_get_payload_error():
+
+    class MyMutation(SerializerMutation):
+        class Meta:
+            serializer_class = MyModelSerializer
+
+    # missing required fields
+    result = MyMutation.mutate_and_get_payload(None, None, **{})
+    assert len(result.errors) > 0