Added depth test

rest_framework/runtests/runtests.py

@@ -5,6 +5,11 @@
 # http://code.djangoproject.com/svn/django/trunk/tests/runtests.py
 import os
 import sys
+"""
+Need to fix sys path so following works without specifically messing with PYTHONPATH
+python ./rest_framework/runtests/runtests.py
+"""
+sys.path.append(os.path.join(os.path.dirname(__file__), "../.."))  
 os.environ['DJANGO_SETTINGS_MODULE'] = 'rest_framework.runtests.settings'
 
 from django.conf import settings

rest_framework/tests/serializer.py

@@ -726,3 +726,24 @@ class SerializerPickleTests(TestCase):
                 model = Person
                 fields = ('name', 'age')
         pickle.dumps(InnerPersonSerializer(Person(name="Noah", age=950)).data)
+
+class DepthTest(TestCase):
+    def test_depth(self):
+        user = Person.objects.create(name="django",age=1)
+        post = BlogPost.objects.create(title="Test blog post", writer=user)
+
+        class PersonSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = Person
+                fields = ("name", "age")
+
+        class BlogPostSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = BlogPost
+                depth = 1
+
+        serializer = BlogPostSerializer(instance=post)
+        expected = {'id': 1, 'title': u'Test blog post',
+                    'writer': {'id': 1, 'name': u'django', 'age':1}}
+
+        self.assertEqual(serializer.data, expected)