Test for customizable HyperlinkedModelSerializer url field name

rest_framework/tests/test_hyperlinkedserializers.py

@@ -3,6 +3,7 @@ import json
 from django.test import TestCase
 from rest_framework import generics, status, serializers
 from rest_framework.compat import patterns, url
+from rest_framework.settings import api_settings
 from rest_framework.test import APIRequestFactory
 from rest_framework.tests.models import (
     Anchor, BasicModel, ManyToManyModel, BlogPost, BlogPostComment,
@@ -331,3 +332,48 @@ class TestOverriddenURLField(TestCase):
             serializer.data,
             {'title': 'New blog post', 'url': 'foo bar'}
         )
+
+
+class TestURLFieldNameBySettings(TestCase):
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
+
+    def setUp(self):
+        self.saved_url_field_name = api_settings.URL_FIELD_NAME
+        api_settings.URL_FIELD_NAME = 'global_url_field'
+
+        class Serializer(serializers.HyperlinkedModelSerializer):
+
+            class Meta:
+                model = BlogPost
+                fields = ('title', api_settings.URL_FIELD_NAME)
+
+        self.Serializer = Serializer
+        self.obj = BlogPost.objects.create(title="New blog post")
+
+    def tearDown(self):
+        api_settings.URL_FIELD_NAME = self.saved_url_field_name
+
+    def test_overridden_url_field_name(self):
+        request = factory.get('/posts/')
+        serializer = self.Serializer(self.obj, context={'request': request})
+        self.assertIn(api_settings.URL_FIELD_NAME, serializer.data)
+
+
+class TestURLFieldNameByOptions(TestCase):
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
+
+    def setUp(self):
+        class Serializer(serializers.HyperlinkedModelSerializer):
+
+            class Meta:
+                model = BlogPost
+                fields = ('title', 'serializer_url_field')
+                url_field_name = 'serializer_url_field'
+
+        self.Serializer = Serializer
+        self.obj = BlogPost.objects.create(title="New blog post")
+
+    def test_overridden_url_field_name(self):
+        request = factory.get('/posts/')
+        serializer = self.Serializer(self.obj, context={'request': request})
+        self.assertIn(self.Serializer.Meta.url_field_name, serializer.data)