Merge master

38 files changed, 1889 insertions, 258 deletions

diff --git a/rest_framework/tests/models.py b/rest_framework/tests/models.py
index f2117538..e2d4eacd 100644
--- a/rest_framework/tests/models.py
+++ b/rest_framework/tests/models.py
@@ -1,5 +1,7 @@
 from __future__ import unicode_literals
 from django.db import models
+from django.utils.translation import ugettext_lazy as _
+from rest_framework import serializers
 
 
 def foobar():
@@ -32,7 +34,7 @@ class Anchor(RESTFrameworkModel):
 
 
 class BasicModel(RESTFrameworkModel):
-    text = models.CharField(max_length=100)
+    text = models.CharField(max_length=100, verbose_name=_("Text comes here"), help_text=_("Text description."))
 
 
 class SlugBasedModel(RESTFrameworkModel):
@@ -58,13 +60,6 @@ class ReadOnlyManyToManyModel(RESTFrameworkModel):
     rel = models.ManyToManyField(Anchor)
 
 
-# Model to test filtering.
-class FilterableItem(RESTFrameworkModel):
-    text = models.CharField(max_length=100)
-    decimal = models.DecimalField(max_digits=4, decimal_places=2)
-    date = models.DateField()
-
-
 # Model for regression test for #285
 
 class Comment(RESTFrameworkModel):
@@ -166,3 +161,9 @@ class NullableOneToOneSource(RESTFrameworkModel):
     name = models.CharField(max_length=100)
     target = models.OneToOneField(OneToOneTarget, null=True, blank=True,
                                   related_name='nullable_source')
+
+
+# Serializer used to test BasicModel
+class BasicModelSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = BasicModel
diff --git a/rest_framework/tests/relations.py b/rest_framework/tests/relations.py
deleted file mode 100644
index cbf93c65..00000000
--- a/rest_framework/tests/relations.py
+++ /dev/null
@@ -1,47 +0,0 @@
-"""
-General tests for relational fields.
-"""
-from __future__ import unicode_literals
-from django.db import models
-from django.test import TestCase
-from rest_framework import serializers
-
-
-class NullModel(models.Model):
-    pass
-
-
-class FieldTests(TestCase):
-    def test_pk_related_field_with_empty_string(self):
-        """
-        Regression test for #446
-
-        https://github.com/tomchristie/django-rest-framework/issues/446
-        """
-        field = serializers.PrimaryKeyRelatedField(queryset=NullModel.objects.all())
-        self.assertRaises(serializers.ValidationError, field.from_native, '')
-        self.assertRaises(serializers.ValidationError, field.from_native, [])
-
-    def test_hyperlinked_related_field_with_empty_string(self):
-        field = serializers.HyperlinkedRelatedField(queryset=NullModel.objects.all(), view_name='')
-        self.assertRaises(serializers.ValidationError, field.from_native, '')
-        self.assertRaises(serializers.ValidationError, field.from_native, [])
-
-    def test_slug_related_field_with_empty_string(self):
-        field = serializers.SlugRelatedField(queryset=NullModel.objects.all(), slug_field='pk')
-        self.assertRaises(serializers.ValidationError, field.from_native, '')
-        self.assertRaises(serializers.ValidationError, field.from_native, [])
-
-
-class TestManyRelateMixin(TestCase):
-    def test_missing_many_to_many_related_field(self):
-        '''
-        Regression test for #632
-
-        https://github.com/tomchristie/django-rest-framework/pull/632
-        '''
-        field = serializers.RelatedField(many=True, read_only=False)
-
-        into = {}
-        field.field_from_native({}, None, 'field_name', into)
-        self.assertEqual(into['field_name'], [])
diff --git a/rest_framework/tests/authentication.py b/rest_framework/tests/test_authentication.py
index 8e6d3e51..d46ac079 100644
--- a/rest_framework/tests/authentication.py
+++ b/rest_framework/tests/test_authentication.py
@@ -6,6 +6,8 @@ from django.utils import unittest
 from rest_framework import HTTP_HEADER_ENCODING
 from rest_framework import exceptions
 from rest_framework import permissions
+from rest_framework import renderers
+from rest_framework.response import Response
 from rest_framework import status
 from rest_framework.authentication import (
     BaseAuthentication,
@@ -48,7 +50,7 @@ urlpatterns = patterns('',
     (r'^token/$', MockView.as_view(authentication_classes=[TokenAuthentication])),
     (r'^auth-token/$', 'rest_framework.authtoken.views.obtain_auth_token'),
     (r'^oauth/$', MockView.as_view(authentication_classes=[OAuthAuthentication])),
-    (r'^oauth-with-scope/$', MockView.as_view(authentication_classes=[OAuthAuthentication], 
+    (r'^oauth-with-scope/$', MockView.as_view(authentication_classes=[OAuthAuthentication],
         permission_classes=[permissions.TokenHasReadWriteScope]))
 )
 
@@ -56,14 +58,14 @@ if oauth2_provider is not None:
     urlpatterns += patterns('',
         url(r'^oauth2/', include('provider.oauth2.urls', namespace='oauth2')),
         url(r'^oauth2-test/$', MockView.as_view(authentication_classes=[OAuth2Authentication])),
-        url(r'^oauth2-with-scope-test/$', MockView.as_view(authentication_classes=[OAuth2Authentication], 
+        url(r'^oauth2-with-scope-test/$', MockView.as_view(authentication_classes=[OAuth2Authentication],
             permission_classes=[permissions.TokenHasReadWriteScope])),
     )
 
 
 class BasicAuthTests(TestCase):
     """Basic authentication"""
-    urls = 'rest_framework.tests.authentication'
+    urls = 'rest_framework.tests.test_authentication'
 
     def setUp(self):
         self.csrf_client = Client(enforce_csrf_checks=True)
@@ -102,7 +104,7 @@ class BasicAuthTests(TestCase):
 
 class SessionAuthTests(TestCase):
     """User session authentication"""
-    urls = 'rest_framework.tests.authentication'
+    urls = 'rest_framework.tests.test_authentication'
 
     def setUp(self):
         self.csrf_client = Client(enforce_csrf_checks=True)
@@ -149,7 +151,7 @@ class SessionAuthTests(TestCase):
 
 class TokenAuthTests(TestCase):
     """Token authentication"""
-    urls = 'rest_framework.tests.authentication'
+    urls = 'rest_framework.tests.test_authentication'
 
     def setUp(self):
         self.csrf_client = Client(enforce_csrf_checks=True)
@@ -243,7 +245,7 @@ class IncorrectCredentialsTests(TestCase):
 
 class OAuthTests(TestCase):
     """OAuth 1.0a authentication"""
-    urls = 'rest_framework.tests.authentication'
+    urls = 'rest_framework.tests.test_authentication'
 
     def setUp(self):
         # these imports are here because oauth is optional and hiding them in try..except block or compat
@@ -429,7 +431,7 @@ class OAuthTests(TestCase):
 
 class OAuth2Tests(TestCase):
     """OAuth 2.0 authentication"""
-    urls = 'rest_framework.tests.authentication'
+    urls = 'rest_framework.tests.test_authentication'
 
     def setUp(self):
         self.csrf_client = Client(enforce_csrf_checks=True)
@@ -553,3 +555,40 @@ class OAuth2Tests(TestCase):
         auth = self._create_authorization_header(token=read_write_access_token.token)
         response = self.csrf_client.post('/oauth2-with-scope-test/', HTTP_AUTHORIZATION=auth)
         self.assertEqual(response.status_code, 200)
+
+
+class FailingAuthAccessedInRenderer(TestCase):
+    def setUp(self):
+        class AuthAccessingRenderer(renderers.BaseRenderer):
+            media_type = 'text/plain'
+            format = 'txt'
+
+            def render(self, data, media_type=None, renderer_context=None):
+                request = renderer_context['request']
+                if request.user.is_authenticated():
+                    return b'authenticated'
+                return b'not authenticated'
+
+        class FailingAuth(BaseAuthentication):
+            def authenticate(self, request):
+                raise exceptions.AuthenticationFailed('authentication failed')
+
+        class ExampleView(APIView):
+            authentication_classes = (FailingAuth,)
+            renderer_classes = (AuthAccessingRenderer,)
+
+            def get(self, request):
+                return Response({'foo': 'bar'})
+
+        self.view = ExampleView.as_view()
+
+    def test_failing_auth_accessed_in_renderer(self):
+        """
+        When authentication fails the renderer should still be able to access
+        `request.user` without raising an exception. Particularly relevant
+        to HTML responses that might reasonably access `request.user`.
+        """
+        request = factory.get('/')
+        response = self.view(request)
+        content = response.render().content
+        self.assertEqual(content, b'not authenticated')
diff --git a/rest_framework/tests/breadcrumbs.py b/rest_framework/tests/test_breadcrumbs.py
index d9ed647e..41ddf2ce 100644
--- a/rest_framework/tests/breadcrumbs.py
+++ b/rest_framework/tests/test_breadcrumbs.py
@@ -36,7 +36,7 @@ urlpatterns = patterns('',
 class BreadcrumbTests(TestCase):
     """Tests the breadcrumb functionality used by the HTML renderer."""
 
-    urls = 'rest_framework.tests.breadcrumbs'
+    urls = 'rest_framework.tests.test_breadcrumbs'
 
     def test_root_breadcrumbs(self):
         url = '/'
diff --git a/rest_framework/tests/decorators.py b/rest_framework/tests/test_decorators.py
index 1016fed3..1016fed3 100644
--- a/rest_framework/tests/decorators.py
+++ b/rest_framework/tests/test_decorators.py
diff --git a/rest_framework/tests/description.py b/rest_framework/tests/test_description.py
index 52c1a34c..52c1a34c 100644
--- a/rest_framework/tests/description.py
+++ b/rest_framework/tests/test_description.py
diff --git a/rest_framework/tests/fields.py b/rest_framework/tests/test_fields.py
index 3cdfa0f6..69a0468e 100644
--- a/rest_framework/tests/fields.py
+++ b/rest_framework/tests/test_fields.py
@@ -2,15 +2,16 @@
 General serializer field tests.
 """
 from __future__ import unicode_literals
+
 import datetime
 from decimal import Decimal
-
+from uuid import uuid4
+from django.core import validators
 from django.db import models
 from django.test import TestCase
-from django.core import validators
-
+from django.utils.datastructures import SortedDict
 from rest_framework import serializers
-from rest_framework.serializers import Serializer
+from rest_framework.tests.models import RESTFrameworkModel
 
 
 class TimestampedModel(models.Model):
@@ -63,6 +64,20 @@ class BasicFieldTests(TestCase):
         serializer = CharPrimaryKeyModelSerializer()
         self.assertEqual(serializer.fields['id'].read_only, False)
 
+    def test_dict_field_ordering(self):
+        """
+        Field should preserve dictionary ordering, if it exists.
+        See: https://github.com/tomchristie/django-rest-framework/issues/832
+        """
+        ret = SortedDict()
+        ret['c'] = 1
+        ret['b'] = 1
+        ret['a'] = 1
+        ret['z'] = 1
+        field = serializers.Field()
+        keys = list(field.to_native(ret).keys())
+        self.assertEqual(keys, ['c', 'b', 'a', 'z'])
+
 
 class DateFieldTest(TestCase):
     """
@@ -573,7 +588,7 @@ class DecimalFieldTest(TestCase):
         """
         Make sure the serializer works correctly
         """
-        class DecimalSerializer(Serializer):
+        class DecimalSerializer(serializers.Serializer):
             decimal_field = serializers.DecimalField(max_value=9010,
                                                      min_value=9000,
                                                      max_digits=6,
@@ -591,7 +606,7 @@ class DecimalFieldTest(TestCase):
         """
         Make sure max_value violations raises ValidationError
         """
-        class DecimalSerializer(Serializer):
+        class DecimalSerializer(serializers.Serializer):
             decimal_field = serializers.DecimalField(max_value=100)
 
         s = DecimalSerializer(data={'decimal_field': '123'})
@@ -603,7 +618,7 @@ class DecimalFieldTest(TestCase):
         """
         Make sure min_value violations raises ValidationError
         """
-        class DecimalSerializer(Serializer):
+        class DecimalSerializer(serializers.Serializer):
             decimal_field = serializers.DecimalField(min_value=100)
 
         s = DecimalSerializer(data={'decimal_field': '99'})
@@ -615,7 +630,7 @@ class DecimalFieldTest(TestCase):
         """
         Make sure max_digits violations raises ValidationError
         """
-        class DecimalSerializer(Serializer):
+        class DecimalSerializer(serializers.Serializer):
             decimal_field = serializers.DecimalField(max_digits=5)
 
         s = DecimalSerializer(data={'decimal_field': '123.456'})
@@ -627,7 +642,7 @@ class DecimalFieldTest(TestCase):
         """
         Make sure max_decimal_places violations raises ValidationError
         """
-        class DecimalSerializer(Serializer):
+        class DecimalSerializer(serializers.Serializer):
             decimal_field = serializers.DecimalField(decimal_places=3)
 
         s = DecimalSerializer(data={'decimal_field': '123.4567'})
@@ -639,10 +654,215 @@ class DecimalFieldTest(TestCase):
         """
         Make sure max_whole_digits violations raises ValidationError
         """
-        class DecimalSerializer(Serializer):
+        class DecimalSerializer(serializers.Serializer):
             decimal_field = serializers.DecimalField(max_digits=4, decimal_places=3)
 
         s = DecimalSerializer(data={'decimal_field': '12345.6'})
 
         self.assertFalse(s.is_valid())
-        self.assertEqual(s.errors,  {'decimal_field': ['Ensure that there are no more than 4 digits in total.']})
\ No newline at end of file
+        self.assertEqual(s.errors,  {'decimal_field': ['Ensure that there are no more than 4 digits in total.']})
+
+
+class ChoiceFieldTests(TestCase):
+    """
+    Tests for the ChoiceField options generator
+    """
+
+    SAMPLE_CHOICES = [
+        ('red', 'Red'),
+        ('green', 'Green'),
+        ('blue', 'Blue'),
+    ]
+
+    def test_choices_required(self):
+        """
+        Make sure proper choices are rendered if field is required
+        """
+        f = serializers.ChoiceField(required=True, choices=self.SAMPLE_CHOICES)
+        self.assertEqual(f.choices, self.SAMPLE_CHOICES)
+
+    def test_choices_not_required(self):
+        """
+        Make sure proper choices (plus blank) are rendered if the field isn't required
+        """
+        f = serializers.ChoiceField(required=False, choices=self.SAMPLE_CHOICES)
+        self.assertEqual(f.choices, models.fields.BLANK_CHOICE_DASH + self.SAMPLE_CHOICES)
+
+
+class EmailFieldTests(TestCase):
+    """
+    Tests for EmailField attribute values
+    """
+
+    class EmailFieldModel(RESTFrameworkModel):
+        email_field = models.EmailField(blank=True)
+
+    class EmailFieldWithGivenMaxLengthModel(RESTFrameworkModel):
+        email_field = models.EmailField(max_length=150, blank=True)
+
+    def test_default_model_value(self):
+        class EmailFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.EmailFieldModel
+
+        serializer = EmailFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['email_field'], 'max_length'), 75)
+
+    def test_given_model_value(self):
+        class EmailFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.EmailFieldWithGivenMaxLengthModel
+
+        serializer = EmailFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['email_field'], 'max_length'), 150)
+
+    def test_given_serializer_value(self):
+        class EmailFieldSerializer(serializers.ModelSerializer):
+            email_field = serializers.EmailField(source='email_field', max_length=20, required=False)
+
+            class Meta:
+                model = self.EmailFieldModel
+
+        serializer = EmailFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['email_field'], 'max_length'), 20)
+
+
+class SlugFieldTests(TestCase):
+    """
+    Tests for SlugField attribute values
+    """
+
+    class SlugFieldModel(RESTFrameworkModel):
+        slug_field = models.SlugField(blank=True)
+
+    class SlugFieldWithGivenMaxLengthModel(RESTFrameworkModel):
+        slug_field = models.SlugField(max_length=84, blank=True)
+
+    def test_default_model_value(self):
+        class SlugFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.SlugFieldModel
+
+        serializer = SlugFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['slug_field'], 'max_length'), 50)
+
+    def test_given_model_value(self):
+        class SlugFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.SlugFieldWithGivenMaxLengthModel
+
+        serializer = SlugFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['slug_field'], 'max_length'), 84)
+
+    def test_given_serializer_value(self):
+        class SlugFieldSerializer(serializers.ModelSerializer):
+            slug_field = serializers.SlugField(source='slug_field',
+                                               max_length=20, required=False)
+
+            class Meta:
+                model = self.SlugFieldModel
+
+        serializer = SlugFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['slug_field'],
+                                 'max_length'), 20)
+
+    def test_invalid_slug(self):
+        """
+        Make sure an invalid slug raises ValidationError
+        """
+        class SlugFieldSerializer(serializers.ModelSerializer):
+            slug_field = serializers.SlugField(source='slug_field', max_length=20, required=True)
+
+            class Meta:
+                model = self.SlugFieldModel
+
+        s = SlugFieldSerializer(data={'slug_field': 'a b'})
+
+        self.assertEqual(s.is_valid(), False)
+        self.assertEqual(s.errors,  {'slug_field': ["Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens."]})
+
+
+class URLFieldTests(TestCase):
+    """
+    Tests for URLField attribute values
+    """
+
+    class URLFieldModel(RESTFrameworkModel):
+        url_field = models.URLField(blank=True)
+
+    class URLFieldWithGivenMaxLengthModel(RESTFrameworkModel):
+        url_field = models.URLField(max_length=128, blank=True)
+
+    def test_default_model_value(self):
+        class URLFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.URLFieldModel
+
+        serializer = URLFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['url_field'],
+                                 'max_length'), 200)
+
+    def test_given_model_value(self):
+        class URLFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.URLFieldWithGivenMaxLengthModel
+
+        serializer = URLFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['url_field'],
+                                 'max_length'), 128)
+
+    def test_given_serializer_value(self):
+        class URLFieldSerializer(serializers.ModelSerializer):
+            url_field = serializers.URLField(source='url_field',
+                                             max_length=20, required=False)
+
+            class Meta:
+                model = self.URLFieldWithGivenMaxLengthModel
+
+        serializer = URLFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['url_field'],
+                         'max_length'), 20)
+
+
+class FieldMetadata(TestCase):
+    def setUp(self):
+        self.required_field = serializers.Field()
+        self.required_field.label = uuid4().hex
+        self.required_field.required = True
+
+        self.optional_field = serializers.Field()
+        self.optional_field.label = uuid4().hex
+        self.optional_field.required = False
+
+    def test_required(self):
+        self.assertEqual(self.required_field.metadata()['required'], True)
+
+    def test_optional(self):
+        self.assertEqual(self.optional_field.metadata()['required'], False)
+
+    def test_label(self):
+        for field in (self.required_field, self.optional_field):
+            self.assertEqual(field.metadata()['label'], field.label)
+
+
+class FieldCallableDefault(TestCase):
+    def setUp(self):
+        self.simple_callable = lambda: 'foo bar'
+
+    def test_default_can_be_simple_callable(self):
+        """
+        Ensure that the 'default' argument can also be a simple callable.
+        """
+        field = serializers.WritableField(default=self.simple_callable)
+        into = {}
+        field.field_from_native({}, {}, 'field', into)
+        self.assertEqual(into, {'field': 'foo bar'})
diff --git a/rest_framework/tests/files.py b/rest_framework/tests/test_files.py
index 487046ac..487046ac 100644
--- a/rest_framework/tests/files.py
+++ b/rest_framework/tests/test_files.py
diff --git a/rest_framework/tests/filterset.py b/rest_framework/tests/test_filters.py
index 023bd016..aaed6247 100644
--- a/rest_framework/tests/filterset.py
+++ b/rest_framework/tests/test_filters.py
@@ -1,23 +1,30 @@
 from __future__ import unicode_literals
 import datetime
 from decimal import Decimal
+from django.db import models
 from django.core.urlresolvers import reverse
 from django.test import TestCase
 from django.test.client import RequestFactory
 from django.utils import unittest
 from rest_framework import generics, serializers, status, filters
 from rest_framework.compat import django_filters, patterns, url
-from rest_framework.tests.models import FilterableItem, BasicModel
+from rest_framework.tests.models import BasicModel
 
 factory = RequestFactory()
 
 
+class FilterableItem(models.Model):
+    text = models.CharField(max_length=100)
+    decimal = models.DecimalField(max_digits=4, decimal_places=2)
+    date = models.DateField()
+
+
 if django_filters:
     # Basic filter on a list view.
     class FilterFieldsRootView(generics.ListCreateAPIView):
         model = FilterableItem
         filter_fields = ['decimal', 'date']
-        filter_backend = filters.DjangoFilterBackend
+        filter_backends = (filters.DjangoFilterBackend,)
 
     # These class are used to test a filter class.
     class SeveralFieldsFilter(django_filters.FilterSet):
@@ -32,7 +39,7 @@ if django_filters:
     class FilterClassRootView(generics.ListCreateAPIView):
         model = FilterableItem
         filter_class = SeveralFieldsFilter
-        filter_backend = filters.DjangoFilterBackend
+        filter_backends = (filters.DjangoFilterBackend,)
 
     # These classes are used to test a misconfigured filter class.
     class MisconfiguredFilter(django_filters.FilterSet):
@@ -45,12 +52,12 @@ if django_filters:
     class IncorrectlyConfiguredRootView(generics.ListCreateAPIView):
         model = FilterableItem
         filter_class = MisconfiguredFilter
-        filter_backend = filters.DjangoFilterBackend
+        filter_backends = (filters.DjangoFilterBackend,)
 
     class FilterClassDetailView(generics.RetrieveAPIView):
         model = FilterableItem
         filter_class = SeveralFieldsFilter
-        filter_backend = filters.DjangoFilterBackend
+        filter_backends = (filters.DjangoFilterBackend,)
 
     # Regression test for #814
     class FilterableItemSerializer(serializers.ModelSerializer):
@@ -61,11 +68,21 @@ if django_filters:
         queryset = FilterableItem.objects.all()
         serializer_class = FilterableItemSerializer
         filter_fields = ['decimal', 'date']
-        filter_backend = filters.DjangoFilterBackend
+        filter_backends = (filters.DjangoFilterBackend,)
+
+    class GetQuerysetView(generics.ListCreateAPIView):
+        serializer_class = FilterableItemSerializer
+        filter_class = SeveralFieldsFilter
+        filter_backends = (filters.DjangoFilterBackend,)
+
+        def get_queryset(self):
+            return FilterableItem.objects.all()
 
     urlpatterns = patterns('',
         url(r'^(?P<pk>\d+)/$', FilterClassDetailView.as_view(), name='detail-view'),
         url(r'^$', FilterClassRootView.as_view(), name='root-view'),
+        url(r'^get-queryset/$', GetQuerysetView.as_view(),
+            name='get-queryset-view'),
     )
 
 
@@ -141,6 +158,17 @@ class IntegrationTestFiltering(CommonFilteringTestCase):
         self.assertEqual(response.data, expected_data)
 
     @unittest.skipUnless(django_filters, 'django-filters not installed')
+    def test_filter_with_get_queryset_only(self):
+        """
+        Regression test for #834.
+        """
+        view = GetQuerysetView.as_view()
+        request = factory.get('/get-queryset/')
+        view(request).render()
+        # Used to raise "issubclass() arg 2 must be a class or tuple of classes"
+        # here when neither `model' nor `queryset' was specified.
+
+    @unittest.skipUnless(django_filters, 'django-filters not installed')
     def test_get_filtered_class_root_view(self):
         """
         GET requests to filtered ListCreateAPIView that have a filter_class set
@@ -215,7 +243,7 @@ class IntegrationTestDetailFiltering(CommonFilteringTestCase):
     """
     Integration tests for filtered detail views.
     """
-    urls = 'rest_framework.tests.filterset'
+    urls = 'rest_framework.tests.test_filters'
 
     def _get_url(self, item):
         return reverse('detail-view', kwargs=dict(pk=item.pk))
@@ -256,3 +284,191 @@ class IntegrationTestDetailFiltering(CommonFilteringTestCase):
         response = self.client.get('{url}?decimal={decimal}&date={date}'.format(url=self._get_url(valid_item), decimal=search_decimal, date=search_date))
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, valid_item_data)
+
+
+class SearchFilterModel(models.Model):
+    title = models.CharField(max_length=20)
+    text = models.CharField(max_length=100)
+
+
+class SearchFilterTests(TestCase):
+    def setUp(self):
+        # Sequence of title/text is:
+        #
+        # z   abc
+        # zz  bcd
+        # zzz cde
+        # ...
+        for idx in range(10):
+            title = 'z' * (idx + 1)
+            text = (
+                chr(idx + ord('a')) +
+                chr(idx + ord('b')) +
+                chr(idx + ord('c'))
+            )
+            SearchFilterModel(title=title, text=text).save()
+
+    def test_search(self):
+        class SearchListView(generics.ListAPIView):
+            model = SearchFilterModel
+            filter_backends = (filters.SearchFilter,)
+            search_fields = ('title', 'text')
+
+        view = SearchListView.as_view()
+        request = factory.get('?search=b')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 1, 'title': 'z', 'text': 'abc'},
+                {'id': 2, 'title': 'zz', 'text': 'bcd'}
+            ]
+        )
+
+    def test_exact_search(self):
+        class SearchListView(generics.ListAPIView):
+            model = SearchFilterModel
+            filter_backends = (filters.SearchFilter,)
+            search_fields = ('=title', 'text')
+
+        view = SearchListView.as_view()
+        request = factory.get('?search=zzz')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 3, 'title': 'zzz', 'text': 'cde'}
+            ]
+        )
+
+    def test_startswith_search(self):
+        class SearchListView(generics.ListAPIView):
+            model = SearchFilterModel
+            filter_backends = (filters.SearchFilter,)
+            search_fields = ('title', '^text')
+
+        view = SearchListView.as_view()
+        request = factory.get('?search=b')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 2, 'title': 'zz', 'text': 'bcd'}
+            ]
+        )
+
+
+class OrdringFilterModel(models.Model):
+    title = models.CharField(max_length=20)
+    text = models.CharField(max_length=100)
+
+
+class OrderingFilterTests(TestCase):
+    def setUp(self):
+        # Sequence of title/text is:
+        #
+        # zyx abc
+        # yxw bcd
+        # xwv cde
+        for idx in range(3):
+            title = (
+                chr(ord('z') - idx) +
+                chr(ord('y') - idx) +
+                chr(ord('x') - idx)
+            )
+            text = (
+                chr(idx + ord('a')) +
+                chr(idx + ord('b')) +
+                chr(idx + ord('c'))
+            )
+            OrdringFilterModel(title=title, text=text).save()
+
+    def test_ordering(self):
+        class OrderingListView(generics.ListAPIView):
+            model = OrdringFilterModel
+            filter_backends = (filters.OrderingFilter,)
+            ordering = ('title',)
+
+        view = OrderingListView.as_view()
+        request = factory.get('?ordering=text')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 1, 'title': 'zyx', 'text': 'abc'},
+                {'id': 2, 'title': 'yxw', 'text': 'bcd'},
+                {'id': 3, 'title': 'xwv', 'text': 'cde'},
+            ]
+        )
+
+    def test_reverse_ordering(self):
+        class OrderingListView(generics.ListAPIView):
+            model = OrdringFilterModel
+            filter_backends = (filters.OrderingFilter,)
+            ordering = ('title',)
+
+        view = OrderingListView.as_view()
+        request = factory.get('?ordering=-text')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 3, 'title': 'xwv', 'text': 'cde'},
+                {'id': 2, 'title': 'yxw', 'text': 'bcd'},
+                {'id': 1, 'title': 'zyx', 'text': 'abc'},
+            ]
+        )
+
+    def test_incorrectfield_ordering(self):
+        class OrderingListView(generics.ListAPIView):
+            model = OrdringFilterModel
+            filter_backends = (filters.OrderingFilter,)
+            ordering = ('title',)
+
+        view = OrderingListView.as_view()
+        request = factory.get('?ordering=foobar')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 3, 'title': 'xwv', 'text': 'cde'},
+                {'id': 2, 'title': 'yxw', 'text': 'bcd'},
+                {'id': 1, 'title': 'zyx', 'text': 'abc'},
+            ]
+        )
+
+    def test_default_ordering(self):
+        class OrderingListView(generics.ListAPIView):
+            model = OrdringFilterModel
+            filter_backends = (filters.OrderingFilter,)
+            ordering = ('title',)
+
+        view = OrderingListView.as_view()
+        request = factory.get('')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 3, 'title': 'xwv', 'text': 'cde'},
+                {'id': 2, 'title': 'yxw', 'text': 'bcd'},
+                {'id': 1, 'title': 'zyx', 'text': 'abc'},
+            ]
+        )
+
+    def test_default_ordering_using_string(self):
+        class OrderingListView(generics.ListAPIView):
+            model = OrdringFilterModel
+            filter_backends = (filters.OrderingFilter,)
+            ordering = 'title'
+
+        view = OrderingListView.as_view()
+        request = factory.get('')
+        response = view(request)
+        self.assertEqual(
+            response.data,
+            [
+                {'id': 3, 'title': 'xwv', 'text': 'cde'},
+                {'id': 2, 'title': 'yxw', 'text': 'bcd'},
+                {'id': 1, 'title': 'zyx', 'text': 'abc'},
+            ]
+        )
diff --git a/rest_framework/tests/genericrelations.py b/rest_framework/tests/test_genericrelations.py
index c38bfb9f..c38bfb9f 100644
--- a/rest_framework/tests/genericrelations.py
+++ b/rest_framework/tests/test_genericrelations.py
diff --git a/rest_framework/tests/generics.py b/rest_framework/tests/test_generics.py
index eca50d82..37734195 100644
--- a/rest_framework/tests/generics.py
+++ b/rest_framework/tests/test_generics.py
@@ -2,7 +2,7 @@ from __future__ import unicode_literals
 from django.db import models
 from django.shortcuts import get_object_or_404
 from django.test import TestCase
-from rest_framework import generics, serializers, status
+from rest_framework import generics, renderers, serializers, status
 from rest_framework.tests.utils import RequestFactory
 from rest_framework.tests.models import BasicModel, Comment, SlugBasedModel
 from rest_framework.compat import six
@@ -39,6 +39,7 @@ class SlugBasedInstanceView(InstanceView):
     """
     model = SlugBasedModel
     serializer_class = SlugSerializer
+    lookup_field = 'slug'
 
 
 class TestRootView(TestCase):
@@ -120,7 +121,25 @@ class TestRootView(TestCase):
                 'text/html'
             ],
             'name': 'Root',
-            'description': 'Example description for OPTIONS.'
+            'description': 'Example description for OPTIONS.',
+            'actions': {
+                'POST': {
+                    'text': {
+                        'max_length': 100,
+                        'read_only': False,
+                        'required': True,
+                        'type': 'string',
+                        "label": "Text comes here",
+                        "help_text": "Text description."
+                    },
+                    'id': {
+                        'read_only': True,
+                        'required': False,
+                        'type': 'integer',
+                        'label': 'ID',
+                    },
+                }
+            }
         }
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, expected)
@@ -223,9 +242,9 @@ class TestInstanceView(TestCase):
         """
         OPTIONS requests to RetrieveUpdateDestroyAPIView should return metadata
         """
-        request = factory.options('/')
-        with self.assertNumQueries(0):
-            response = self.view(request).render()
+        request = factory.options('/1')
+        with self.assertNumQueries(1):
+            response = self.view(request, pk=1).render()
         expected = {
             'parses': [
                 'application/json',
@@ -237,11 +256,39 @@ class TestInstanceView(TestCase):
                 'text/html'
             ],
             'name': 'Instance',
-            'description': 'Example description for OPTIONS.'
+            'description': 'Example description for OPTIONS.',
+            'actions': {
+                'PUT': {
+                    'text': {
+                        'max_length': 100,
+                        'read_only': False,
+                        'required': True,
+                        'type': 'string',
+                        'label': 'Text comes here',
+                        'help_text': 'Text description.'
+                    },
+                    'id': {
+                        'read_only': True,
+                        'required': False,
+                        'type': 'integer',
+                        'label': 'ID',
+                    },
+                }
+            }
         }
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, expected)
 
+    def test_get_instance_view_incorrect_arg(self):
+        """
+        GET requests with an incorrect pk type, should raise 404, not 500.
+        Regression test for #890.
+        """
+        request = factory.get('/a')
+        with self.assertNumQueries(0):
+            response = self.view(request, pk='a').render()
+        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
+
     def test_put_cannot_set_id(self):
         """
         PUT requests to create a new object should not be able to set the id.
@@ -434,22 +481,14 @@ class TestFilterBackendAppliedToViews(TestCase):
             {'id': obj.id, 'text': obj.text}
             for obj in self.objects.all()
         ]
-        self.root_view = RootView.as_view()
-        self.instance_view = InstanceView.as_view()
-        self.original_root_backend = getattr(RootView, 'filter_backend')
-        self.original_instance_backend = getattr(InstanceView, 'filter_backend')
-
-    def tearDown(self):
-        setattr(RootView, 'filter_backend', self.original_root_backend)
-        setattr(InstanceView, 'filter_backend', self.original_instance_backend)
 
     def test_get_root_view_filters_by_name_with_filter_backend(self):
         """
         GET requests to ListCreateAPIView should return filtered list.
         """
-        setattr(RootView, 'filter_backend', InclusiveFilterBackend)
+        root_view = RootView.as_view(filter_backends=(InclusiveFilterBackend,))
         request = factory.get('/')
-        response = self.root_view(request).render()
+        response = root_view(request).render()
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(len(response.data), 1)
         self.assertEqual(response.data, [{'id': 1, 'text': 'foo'}])
@@ -458,9 +497,9 @@ class TestFilterBackendAppliedToViews(TestCase):
         """
         GET requests to ListCreateAPIView should return empty list when all models are filtered out.
         """
-        setattr(RootView, 'filter_backend', ExclusiveFilterBackend)
+        root_view = RootView.as_view(filter_backends=(ExclusiveFilterBackend,))
         request = factory.get('/')
-        response = self.root_view(request).render()
+        response = root_view(request).render()
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, [])
 
@@ -468,9 +507,9 @@ class TestFilterBackendAppliedToViews(TestCase):
         """
         GET requests to RetrieveUpdateDestroyAPIView should raise 404 when model filtered out.
         """
-        setattr(InstanceView, 'filter_backend', ExclusiveFilterBackend)
+        instance_view = InstanceView.as_view(filter_backends=(ExclusiveFilterBackend,))
         request = factory.get('/1')
-        response = self.instance_view(request, pk=1).render()
+        response = instance_view(request, pk=1).render()
         self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
         self.assertEqual(response.data, {'detail': 'Not found'})
 
@@ -478,8 +517,40 @@ class TestFilterBackendAppliedToViews(TestCase):
         """
         GET requests to RetrieveUpdateDestroyAPIView should return a single object when not excluded
         """
-        setattr(InstanceView, 'filter_backend', InclusiveFilterBackend)
+        instance_view = InstanceView.as_view(filter_backends=(InclusiveFilterBackend,))
         request = factory.get('/1')
-        response = self.instance_view(request, pk=1).render()
+        response = instance_view(request, pk=1).render()
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, {'id': 1, 'text': 'foo'})
+
+
+class TwoFieldModel(models.Model):
+    field_a = models.CharField(max_length=100)
+    field_b = models.CharField(max_length=100)
+
+
+class DynamicSerializerView(generics.ListCreateAPIView):
+    model = TwoFieldModel
+    renderer_classes = (renderers.BrowsableAPIRenderer, renderers.JSONRenderer)
+
+    def get_serializer_class(self):
+        if self.request.method == 'POST':
+            class DynamicSerializer(serializers.ModelSerializer):
+                class Meta:
+                    model = TwoFieldModel
+                    fields = ('field_b',)
+            return DynamicSerializer
+        return super(DynamicSerializerView, self).get_serializer_class()
+
+
+class TestFilterBackendAppliedToViews(TestCase):
+
+    def test_dynamic_serializer_form_in_browsable_api(self):
+        """
+        GET requests to ListCreateAPIView should return filtered list.
+        """
+        view = DynamicSerializerView.as_view()
+        request = factory.get('/')
+        response = view(request).render()
+        self.assertContains(response, 'field_b')
+        self.assertNotContains(response, 'field_a')
diff --git a/rest_framework/tests/htmlrenderer.py b/rest_framework/tests/test_htmlrenderer.py
index 8f2e2b5a..8957a43c 100644
--- a/rest_framework/tests/htmlrenderer.py
+++ b/rest_framework/tests/test_htmlrenderer.py
@@ -42,7 +42,7 @@ urlpatterns = patterns('',
 
 
 class TemplateHTMLRendererTests(TestCase):
-    urls = 'rest_framework.tests.htmlrenderer'
+    urls = 'rest_framework.tests.test_htmlrenderer'
 
     def setUp(self):
         """
@@ -66,23 +66,23 @@ class TemplateHTMLRendererTests(TestCase):
     def test_simple_html_view(self):
         response = self.client.get('/')
         self.assertContains(response, "example: foobar")
-        self.assertEqual(response['Content-Type'], 'text/html')
+        self.assertEqual(response['Content-Type'], 'text/html; charset=utf-8')
 
     def test_not_found_html_view(self):
         response = self.client.get('/not_found')
         self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
         self.assertEqual(response.content, six.b("404 Not Found"))
-        self.assertEqual(response['Content-Type'], 'text/html')
+        self.assertEqual(response['Content-Type'], 'text/html; charset=utf-8')
 
     def test_permission_denied_html_view(self):
         response = self.client.get('/permission_denied')
         self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
         self.assertEqual(response.content, six.b("403 Forbidden"))
-        self.assertEqual(response['Content-Type'], 'text/html')
+        self.assertEqual(response['Content-Type'], 'text/html; charset=utf-8')
 
 
 class TemplateHTMLRendererExceptionTests(TestCase):
-    urls = 'rest_framework.tests.htmlrenderer'
+    urls = 'rest_framework.tests.test_htmlrenderer'
 
     def setUp(self):
         """
@@ -109,10 +109,10 @@ class TemplateHTMLRendererExceptionTests(TestCase):
         response = self.client.get('/not_found')
         self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
         self.assertEqual(response.content, six.b("404: Not found"))
-        self.assertEqual(response['Content-Type'], 'text/html')
+        self.assertEqual(response['Content-Type'], 'text/html; charset=utf-8')
 
     def test_permission_denied_html_view_with_template(self):
         response = self.client.get('/permission_denied')
         self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
         self.assertEqual(response.content, six.b("403: Permission denied"))
-        self.assertEqual(response['Content-Type'], 'text/html')
+        self.assertEqual(response['Content-Type'], 'text/html; charset=utf-8')
diff --git a/rest_framework/tests/hyperlinkedserializers.py b/rest_framework/tests/test_hyperlinkedserializers.py
index 9a61f299..1894ddb2 100644
--- a/rest_framework/tests/hyperlinkedserializers.py
+++ b/rest_framework/tests/test_hyperlinkedserializers.py
@@ -27,6 +27,14 @@ class PhotoSerializer(serializers.Serializer):
         return Photo(**attrs)
 
 
+class AlbumSerializer(serializers.ModelSerializer):
+    url = serializers.HyperlinkedIdentityField(view_name='album-detail', lookup_field='title')
+
+    class Meta:
+        model = Album
+        fields = ('title', 'url')
+
+
 class BasicList(generics.ListCreateAPIView):
     model = BasicModel
     model_serializer_class = serializers.HyperlinkedModelSerializer
@@ -73,6 +81,8 @@ class PhotoListCreate(generics.ListCreateAPIView):
 
 class AlbumDetail(generics.RetrieveAPIView):
     model = Album
+    serializer_class = AlbumSerializer
+    lookup_field = 'title'
 
 
 class OptionalRelationDetail(generics.RetrieveUpdateDestroyAPIView):
@@ -96,7 +106,7 @@ urlpatterns = patterns('',
 
 
 class TestBasicHyperlinkedView(TestCase):
-    urls = 'rest_framework.tests.hyperlinkedserializers'
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
 
     def setUp(self):
         """
@@ -133,7 +143,7 @@ class TestBasicHyperlinkedView(TestCase):
 
 
 class TestManyToManyHyperlinkedView(TestCase):
-    urls = 'rest_framework.tests.hyperlinkedserializers'
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
 
     def setUp(self):
         """
@@ -180,8 +190,38 @@ class TestManyToManyHyperlinkedView(TestCase):
         self.assertEqual(response.data, self.data[0])
 
 
+class TestHyperlinkedIdentityFieldLookup(TestCase):
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
+
+    def setUp(self):
+        """
+        Create 3 Album instances.
+        """
+        titles = ['foo', 'bar', 'baz']
+        for title in titles:
+            album = Album(title=title)
+            album.save()
+        self.detail_view = AlbumDetail.as_view()
+        self.data = {
+            'foo': {'title': 'foo', 'url': 'http://testserver/albums/foo/'},
+            'bar': {'title': 'bar', 'url': 'http://testserver/albums/bar/'},
+            'baz': {'title': 'baz', 'url': 'http://testserver/albums/baz/'}
+        }
+
+    def test_lookup_field(self):
+        """
+        GET requests to AlbumDetail view should return serialized Albums
+        with a url field keyed by `title`.
+        """
+        for album in Album.objects.all():
+            request = factory.get('/albums/{0}/'.format(album.title))
+            response = self.detail_view(request, title=album.title)
+            self.assertEqual(response.status_code, status.HTTP_200_OK)
+            self.assertEqual(response.data, self.data[album.title])
+
+
 class TestCreateWithForeignKeys(TestCase):
-    urls = 'rest_framework.tests.hyperlinkedserializers'
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
 
     def setUp(self):
         """
@@ -206,7 +246,7 @@ class TestCreateWithForeignKeys(TestCase):
 
 
 class TestCreateWithForeignKeysAndCustomSlug(TestCase):
-    urls = 'rest_framework.tests.hyperlinkedserializers'
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
 
     def setUp(self):
         """
@@ -231,7 +271,7 @@ class TestCreateWithForeignKeysAndCustomSlug(TestCase):
 
 
 class TestOptionalRelationHyperlinkedView(TestCase):
-    urls = 'rest_framework.tests.hyperlinkedserializers'
+    urls = 'rest_framework.tests.test_hyperlinkedserializers'
 
     def setUp(self):
         """
diff --git a/rest_framework/tests/multitable_inheritance.py b/rest_framework/tests/test_multitable_inheritance.py
index 00c15327..00c15327 100644
--- a/rest_framework/tests/multitable_inheritance.py
+++ b/rest_framework/tests/test_multitable_inheritance.py
diff --git a/rest_framework/tests/negotiation.py b/rest_framework/tests/test_negotiation.py
index 43721b84..7f84827f 100644
--- a/rest_framework/tests/negotiation.py
+++ b/rest_framework/tests/test_negotiation.py
@@ -3,19 +3,24 @@ from django.test import TestCase
 from django.test.client import RequestFactory
 from rest_framework.negotiation import DefaultContentNegotiation
 from rest_framework.request import Request
+from rest_framework.renderers import BaseRenderer
 
 
 factory = RequestFactory()
 
 
-class MockJSONRenderer(object):
+class MockJSONRenderer(BaseRenderer):
     media_type = 'application/json'
 
 
-class MockHTMLRenderer(object):
+class MockHTMLRenderer(BaseRenderer):
     media_type = 'text/html'
 
 
+class NoCharsetSpecifiedRenderer(BaseRenderer):
+    media_type = 'my/media'
+
+
 class TestAcceptedMediaType(TestCase):
     def setUp(self):
         self.renderers = [MockJSONRenderer(), MockHTMLRenderer()]
diff --git a/rest_framework/tests/pagination.py b/rest_framework/tests/test_pagination.py
index 6b8ef02f..e538a78e 100644
--- a/rest_framework/tests/pagination.py
+++ b/rest_framework/tests/test_pagination.py
@@ -1,18 +1,24 @@
 from __future__ import unicode_literals
 import datetime
 from decimal import Decimal
-import django
+from django.db import models
 from django.core.paginator import Paginator
 from django.test import TestCase
 from django.test.client import RequestFactory
 from django.utils import unittest
 from rest_framework import generics, status, pagination, filters, serializers
 from rest_framework.compat import django_filters
-from rest_framework.tests.models import BasicModel, FilterableItem
+from rest_framework.tests.models import BasicModel
 
 factory = RequestFactory()
 
 
+class FilterableItem(models.Model):
+    text = models.CharField(max_length=100)
+    decimal = models.DecimalField(max_digits=4, decimal_places=2)
+    date = models.DateField()
+
+
 class RootView(generics.ListCreateAPIView):
     """
     Example description for OPTIONS.
@@ -124,7 +130,7 @@ class IntegrationTestPaginationAndFiltering(TestCase):
             model = FilterableItem
             paginate_by = 10
             filter_class = DecimalFilter
-            filter_backend = filters.DjangoFilterBackend
+            filter_backends = (filters.DjangoFilterBackend,)
 
         view = FilterFieldsRootView.as_view()
 
@@ -171,7 +177,7 @@ class IntegrationTestPaginationAndFiltering(TestCase):
         class BasicFilterFieldsRootView(generics.ListCreateAPIView):
             model = FilterableItem
             paginate_by = 10
-            filter_backend = DecimalFilterBackend
+            filter_backends = (DecimalFilterBackend,)
 
         view = BasicFilterFieldsRootView.as_view()
 
diff --git a/rest_framework/tests/parsers.py b/rest_framework/tests/test_parsers.py
index 7699e10c..7699e10c 100644
--- a/rest_framework/tests/parsers.py
+++ b/rest_framework/tests/test_parsers.py
diff --git a/rest_framework/tests/permissions.py b/rest_framework/tests/test_permissions.py
index b3993be5..6caaf65b 100644
--- a/rest_framework/tests/permissions.py
+++ b/rest_framework/tests/test_permissions.py
@@ -108,6 +108,48 @@ class ModelPermissionsIntegrationTests(TestCase):
         response = instance_view(request, pk='2')
         self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
 
+    def test_options_permitted(self):
+        request = factory.options('/', content_type='application/json',
+                               HTTP_AUTHORIZATION=self.permitted_credentials)
+        response = root_view(request, pk='1')
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertIn('actions', response.data)
+        self.assertEqual(list(response.data['actions'].keys()), ['POST'])
+
+        request = factory.options('/1', content_type='application/json',
+                               HTTP_AUTHORIZATION=self.permitted_credentials)
+        response = instance_view(request, pk='1')
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertIn('actions', response.data)
+        self.assertEqual(list(response.data['actions'].keys()), ['PUT'])
+
+    def test_options_disallowed(self):
+        request = factory.options('/', content_type='application/json',
+                               HTTP_AUTHORIZATION=self.disallowed_credentials)
+        response = root_view(request, pk='1')
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertNotIn('actions', response.data)
+
+        request = factory.options('/1', content_type='application/json',
+                               HTTP_AUTHORIZATION=self.disallowed_credentials)
+        response = instance_view(request, pk='1')
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertNotIn('actions', response.data)
+
+    def test_options_updateonly(self):
+        request = factory.options('/', content_type='application/json',
+                               HTTP_AUTHORIZATION=self.updateonly_credentials)
+        response = root_view(request, pk='1')
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertNotIn('actions', response.data)
+
+        request = factory.options('/1', content_type='application/json',
+                               HTTP_AUTHORIZATION=self.updateonly_credentials)
+        response = instance_view(request, pk='1')
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertIn('actions', response.data)
+        self.assertEqual(list(response.data['actions'].keys()), ['PUT'])
+
 
 class OwnerModel(models.Model):
     text = models.CharField(max_length=100)
diff --git a/rest_framework/tests/test_relations.py b/rest_framework/tests/test_relations.py
new file mode 100644
index 00000000..d19219c9
--- /dev/null
+++ b/rest_framework/tests/test_relations.py
@@ -0,0 +1,100 @@
+"""
+General tests for relational fields.
+"""
+from __future__ import unicode_literals
+from django.db import models
+from django.test import TestCase
+from rest_framework import serializers
+from rest_framework.tests.models import BlogPost
+
+
+class NullModel(models.Model):
+    pass
+
+
+class FieldTests(TestCase):
+    def test_pk_related_field_with_empty_string(self):
+        """
+        Regression test for #446
+
+        https://github.com/tomchristie/django-rest-framework/issues/446
+        """
+        field = serializers.PrimaryKeyRelatedField(queryset=NullModel.objects.all())
+        self.assertRaises(serializers.ValidationError, field.from_native, '')
+        self.assertRaises(serializers.ValidationError, field.from_native, [])
+
+    def test_hyperlinked_related_field_with_empty_string(self):
+        field = serializers.HyperlinkedRelatedField(queryset=NullModel.objects.all(), view_name='')
+        self.assertRaises(serializers.ValidationError, field.from_native, '')
+        self.assertRaises(serializers.ValidationError, field.from_native, [])
+
+    def test_slug_related_field_with_empty_string(self):
+        field = serializers.SlugRelatedField(queryset=NullModel.objects.all(), slug_field='pk')
+        self.assertRaises(serializers.ValidationError, field.from_native, '')
+        self.assertRaises(serializers.ValidationError, field.from_native, [])
+
+
+class TestManyRelatedMixin(TestCase):
+    def test_missing_many_to_many_related_field(self):
+        '''
+        Regression test for #632
+
+        https://github.com/tomchristie/django-rest-framework/pull/632
+        '''
+        field = serializers.RelatedField(many=True, read_only=False)
+
+        into = {}
+        field.field_from_native({}, None, 'field_name', into)
+        self.assertEqual(into['field_name'], [])
+
+
+# Regression tests for #694 (`source` attribute on related fields)
+
+class RelatedFieldSourceTests(TestCase):
+    def test_related_manager_source(self):
+        """
+        Relational fields should be able to use manager-returning methods as their source.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.RelatedField(many=True, source='get_blogposts_manager')
+
+        class ClassWithManagerMethod(object):
+            def get_blogposts_manager(self):
+                return BlogPost.objects
+
+        obj = ClassWithManagerMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, ['BlogPost object'])
+
+    def test_related_queryset_source(self):
+        """
+        Relational fields should be able to use queryset-returning methods as their source.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.RelatedField(many=True, source='get_blogposts_queryset')
+
+        class ClassWithQuerysetMethod(object):
+            def get_blogposts_queryset(self):
+                return BlogPost.objects.all()
+
+        obj = ClassWithQuerysetMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, ['BlogPost object'])
+
+    def test_dotted_source(self):
+        """
+        Source argument should support dotted.source notation.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.RelatedField(many=True, source='a.b.c')
+
+        class ClassWithQuerysetMethod(object):
+            a = {
+                'b': {
+                    'c': BlogPost.objects.all()
+                }
+            }
+
+        obj = ClassWithQuerysetMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, ['BlogPost object'])
diff --git a/rest_framework/tests/relations_hyperlink.py b/rest_framework/tests/test_relations_hyperlink.py
index b1eed9a7..2ca7f4f2 100644
--- a/rest_framework/tests/relations_hyperlink.py
+++ b/rest_framework/tests/test_relations_hyperlink.py
@@ -4,6 +4,7 @@ from django.test.client import RequestFactory
 from rest_framework import serializers
 from rest_framework.compat import patterns, url
 from rest_framework.tests.models import (
+    BlogPost,
     ManyToManyTarget, ManyToManySource, ForeignKeyTarget, ForeignKeySource,
     NullableForeignKeySource, OneToOneTarget, NullableOneToOneSource
 )
@@ -16,6 +17,7 @@ def dummy_view(request, pk):
     pass
 
 urlpatterns = patterns('',
+    url(r'^dummyurl/(?P<pk>[0-9]+)/$', dummy_view, name='dummy-url'),
     url(r'^manytomanysource/(?P<pk>[0-9]+)/$', dummy_view, name='manytomanysource-detail'),
     url(r'^manytomanytarget/(?P<pk>[0-9]+)/$', dummy_view, name='manytomanytarget-detail'),
     url(r'^foreignkeysource/(?P<pk>[0-9]+)/$', dummy_view, name='foreignkeysource-detail'),
@@ -69,7 +71,7 @@ class NullableOneToOneTargetSerializer(serializers.HyperlinkedModelSerializer):
 # TODO: Add test that .data cannot be accessed prior to .is_valid
 
 class HyperlinkedManyToManyTests(TestCase):
-    urls = 'rest_framework.tests.relations_hyperlink'
+    urls = 'rest_framework.tests.test_relations_hyperlink'
 
     def setUp(self):
         for idx in range(1, 4):
@@ -177,7 +179,7 @@ class HyperlinkedManyToManyTests(TestCase):
 
 
 class HyperlinkedForeignKeyTests(TestCase):
-    urls = 'rest_framework.tests.relations_hyperlink'
+    urls = 'rest_framework.tests.test_relations_hyperlink'
 
     def setUp(self):
         target = ForeignKeyTarget(name='target-1')
@@ -305,7 +307,7 @@ class HyperlinkedForeignKeyTests(TestCase):
 
 
 class HyperlinkedNullableForeignKeyTests(TestCase):
-    urls = 'rest_framework.tests.relations_hyperlink'
+    urls = 'rest_framework.tests.test_relations_hyperlink'
 
     def setUp(self):
         target = ForeignKeyTarget(name='target-1')
@@ -433,7 +435,7 @@ class HyperlinkedNullableForeignKeyTests(TestCase):
 
 
 class HyperlinkedNullableOneToOneTests(TestCase):
-    urls = 'rest_framework.tests.relations_hyperlink'
+    urls = 'rest_framework.tests.test_relations_hyperlink'
 
     def setUp(self):
         target = OneToOneTarget(name='target-1')
@@ -451,3 +453,72 @@ class HyperlinkedNullableOneToOneTests(TestCase):
             {'url': 'http://testserver/onetoonetarget/2/', 'name': 'target-2', 'nullable_source': None},
         ]
         self.assertEqual(serializer.data, expected)
+
+
+# Regression tests for #694 (`source` attribute on related fields)
+
+class HyperlinkedRelatedFieldSourceTests(TestCase):
+    urls = 'rest_framework.tests.test_relations_hyperlink'
+
+    def test_related_manager_source(self):
+        """
+        Relational fields should be able to use manager-returning methods as their source.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.HyperlinkedRelatedField(
+            many=True,
+            source='get_blogposts_manager',
+            view_name='dummy-url',
+        )
+        field.context = {'request': request}
+
+        class ClassWithManagerMethod(object):
+            def get_blogposts_manager(self):
+                return BlogPost.objects
+
+        obj = ClassWithManagerMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, ['http://testserver/dummyurl/1/'])
+
+    def test_related_queryset_source(self):
+        """
+        Relational fields should be able to use queryset-returning methods as their source.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.HyperlinkedRelatedField(
+            many=True,
+            source='get_blogposts_queryset',
+            view_name='dummy-url',
+        )
+        field.context = {'request': request}
+
+        class ClassWithQuerysetMethod(object):
+            def get_blogposts_queryset(self):
+                return BlogPost.objects.all()
+
+        obj = ClassWithQuerysetMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, ['http://testserver/dummyurl/1/'])
+
+    def test_dotted_source(self):
+        """
+        Source argument should support dotted.source notation.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.HyperlinkedRelatedField(
+            many=True,
+            source='a.b.c',
+            view_name='dummy-url',
+        )
+        field.context = {'request': request}
+
+        class ClassWithQuerysetMethod(object):
+            a = {
+                'b': {
+                    'c': BlogPost.objects.all()
+                }
+            }
+
+        obj = ClassWithQuerysetMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, ['http://testserver/dummyurl/1/'])
diff --git a/rest_framework/tests/relations_nested.py b/rest_framework/tests/test_relations_nested.py
index 8325580f..8325580f 100644
--- a/rest_framework/tests/relations_nested.py
+++ b/rest_framework/tests/test_relations_nested.py
diff --git a/rest_framework/tests/relations_pk.py b/rest_framework/tests/test_relations_pk.py
index 5ce8b567..e2a1b815 100644
--- a/rest_framework/tests/relations_pk.py
+++ b/rest_framework/tests/test_relations_pk.py
@@ -1,7 +1,11 @@
 from __future__ import unicode_literals
+from django.db import models
 from django.test import TestCase
 from rest_framework import serializers
-from rest_framework.tests.models import ManyToManyTarget, ManyToManySource, ForeignKeyTarget, ForeignKeySource, NullableForeignKeySource, OneToOneTarget, NullableOneToOneSource
+from rest_framework.tests.models import (
+    BlogPost, ManyToManyTarget, ManyToManySource, ForeignKeyTarget, ForeignKeySource,
+    NullableForeignKeySource, OneToOneTarget, NullableOneToOneSource,
+)
 from rest_framework.compat import six
 
 
@@ -124,6 +128,7 @@ class PKManyToManyTests(TestCase):
         # Ensure source 4 is added, and everything else is as expected
         queryset = ManyToManySource.objects.all()
         serializer = ManyToManySourceSerializer(queryset, many=True)
+        self.assertFalse(serializer.fields['targets'].read_only)
         expected = [
             {'id': 1, 'name': 'source-1', 'targets': [1]},
             {'id': 2, 'name': 'source-2', 'targets': [1, 2]},
@@ -135,6 +140,7 @@ class PKManyToManyTests(TestCase):
     def test_reverse_many_to_many_create(self):
         data = {'id': 4, 'name': 'target-4', 'sources': [1, 3]}
         serializer = ManyToManyTargetSerializer(data=data)
+        self.assertFalse(serializer.fields['sources'].read_only)
         self.assertTrue(serializer.is_valid())
         obj = serializer.save()
         self.assertEqual(serializer.data, data)
@@ -421,3 +427,116 @@ class PKNullableOneToOneTests(TestCase):
             {'id': 2, 'name': 'target-2', 'nullable_source': 1},
         ]
         self.assertEqual(serializer.data, expected)
+
+
+# The below models and tests ensure that serializer fields corresponding
+# to a ManyToManyField field with a user-specified ``through`` model are
+# set to read only
+
+
+class ManyToManyThroughTarget(models.Model):
+    name = models.CharField(max_length=100)
+
+
+class ManyToManyThrough(models.Model):
+    source = models.ForeignKey('ManyToManyThroughSource')
+    target = models.ForeignKey(ManyToManyThroughTarget)
+
+
+class ManyToManyThroughSource(models.Model):
+    name = models.CharField(max_length=100)
+    targets = models.ManyToManyField(ManyToManyThroughTarget,
+                                     related_name='sources',
+                                     through='ManyToManyThrough')
+
+
+class ManyToManyThroughTargetSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ManyToManyThroughTarget
+        fields = ('id', 'name', 'sources')
+
+
+class ManyToManyThroughSourceSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ManyToManyThroughSource
+        fields = ('id', 'name', 'targets')
+
+
+class PKManyToManyThroughTests(TestCase):
+    def setUp(self):
+        self.source = ManyToManyThroughSource.objects.create(
+            name='through-source-1')
+        self.target = ManyToManyThroughTarget.objects.create(
+            name='through-target-1')
+
+    def test_many_to_many_create(self):
+        data = {'id': 2, 'name': 'source-2', 'targets': [self.target.pk]}
+        serializer = ManyToManyThroughSourceSerializer(data=data)
+        self.assertTrue(serializer.fields['targets'].read_only)
+        self.assertTrue(serializer.is_valid())
+        obj = serializer.save()
+        self.assertEqual(obj.name, 'source-2')
+        self.assertEqual(obj.targets.count(), 0)
+
+    def test_many_to_many_reverse_create(self):
+        data = {'id': 2, 'name': 'target-2', 'sources': [self.source.pk]}
+        serializer = ManyToManyThroughTargetSerializer(data=data)
+        self.assertTrue(serializer.fields['sources'].read_only)
+        self.assertTrue(serializer.is_valid())
+        serializer.save()
+        obj = serializer.save()
+        self.assertEqual(obj.name, 'target-2')
+        self.assertEqual(obj.sources.count(), 0)
+
+
+# Regression tests for #694 (`source` attribute on related fields)
+
+
+class PrimaryKeyRelatedFieldSourceTests(TestCase):
+    def test_related_manager_source(self):
+        """
+        Relational fields should be able to use manager-returning methods as their source.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.PrimaryKeyRelatedField(many=True, source='get_blogposts_manager')
+
+        class ClassWithManagerMethod(object):
+            def get_blogposts_manager(self):
+                return BlogPost.objects
+
+        obj = ClassWithManagerMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, [1])
+
+    def test_related_queryset_source(self):
+        """
+        Relational fields should be able to use queryset-returning methods as their source.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.PrimaryKeyRelatedField(many=True, source='get_blogposts_queryset')
+
+        class ClassWithQuerysetMethod(object):
+            def get_blogposts_queryset(self):
+                return BlogPost.objects.all()
+
+        obj = ClassWithQuerysetMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, [1])
+
+    def test_dotted_source(self):
+        """
+        Source argument should support dotted.source notation.
+        """
+        BlogPost.objects.create(title='blah')
+        field = serializers.PrimaryKeyRelatedField(many=True, source='a.b.c')
+
+        class ClassWithQuerysetMethod(object):
+            a = {
+                'b': {
+                    'c': BlogPost.objects.all()
+                }
+            }
+
+        obj = ClassWithQuerysetMethod()
+        value = field.field_to_native(obj, 'field_name')
+        self.assertEqual(value, [1])
diff --git a/rest_framework/tests/relations_slug.py b/rest_framework/tests/test_relations_slug.py
index 435c821c..435c821c 100644
--- a/rest_framework/tests/relations_slug.py
+++ b/rest_framework/tests/test_relations_slug.py
diff --git a/rest_framework/tests/renderers.py b/rest_framework/tests/test_renderers.py
index 40bac9cb..95b59741 100644
--- a/rest_framework/tests/renderers.py
+++ b/rest_framework/tests/test_renderers.py
@@ -1,14 +1,18 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
 from decimal import Decimal
 from django.core.cache import cache
 from django.test import TestCase
 from django.test.client import RequestFactory
 from django.utils import unittest
+from django.utils.translation import ugettext_lazy as _
 from rest_framework import status, permissions
 from rest_framework.compat import yaml, etree, patterns, url, include
 from rest_framework.response import Response
 from rest_framework.views import APIView
 from rest_framework.renderers import BaseRenderer, JSONRenderer, YAMLRenderer, \
-    XMLRenderer, JSONPRenderer, BrowsableAPIRenderer
+    XMLRenderer, JSONPRenderer, BrowsableAPIRenderer, UnicodeJSONRenderer
 from rest_framework.parsers import YAMLParser, XMLParser
 from rest_framework.settings import api_settings
 from rest_framework.compat import StringIO
@@ -26,7 +30,7 @@ RENDERER_B_SERIALIZER = lambda x: ('Renderer B: %s' % x).encode('ascii')
 
 
 expected_results = [
-    ((elem for elem in [1, 2, 3]), JSONRenderer, '[1, 2, 3]')  # Generator
+    ((elem for elem in [1, 2, 3]), JSONRenderer, b'[1, 2, 3]')  # Generator
 ]
 
 
@@ -129,12 +133,12 @@ class RendererEndToEndTests(TestCase):
     End-to-end testing of renderers using an RendererMixin on a generic view.
     """
 
-    urls = 'rest_framework.tests.renderers'
+    urls = 'rest_framework.tests.test_renderers'
 
     def test_default_renderer_serializes_content(self):
         """If the Accept header is not set the default renderer should serialize the response."""
         resp = self.client.get('/')
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -142,13 +146,13 @@ class RendererEndToEndTests(TestCase):
         """No response must be included in HEAD requests."""
         resp = self.client.head('/')
         self.assertEqual(resp.status_code, DUMMYSTATUS)
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, six.b(''))
 
     def test_default_renderer_serializes_content_on_accept_any(self):
         """If the Accept header is set to */* the default renderer should serialize the response."""
         resp = self.client.get('/', HTTP_ACCEPT='*/*')
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -156,7 +160,7 @@ class RendererEndToEndTests(TestCase):
         """If the Accept header is set the specified renderer should serialize the response.
         (In this case we check that works for the default renderer)"""
         resp = self.client.get('/', HTTP_ACCEPT=RendererA.media_type)
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -164,7 +168,7 @@ class RendererEndToEndTests(TestCase):
         """If the Accept header is set the specified renderer should serialize the response.
         (In this case we check that works for a non-default renderer)"""
         resp = self.client.get('/', HTTP_ACCEPT=RendererB.media_type)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -175,7 +179,7 @@ class RendererEndToEndTests(TestCase):
             RendererB.media_type
         )
         resp = self.client.get('/' + param)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -192,7 +196,7 @@ class RendererEndToEndTests(TestCase):
             RendererB.format
         )
         resp = self.client.get('/' + param)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -200,7 +204,7 @@ class RendererEndToEndTests(TestCase):
         """If a 'format' keyword arg is specified, the renderer with the matching
         format attribute should serialize the response."""
         resp = self.client.get('/something.formatb')
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -213,7 +217,7 @@ class RendererEndToEndTests(TestCase):
         )
         resp = self.client.get('/' + param,
                                HTTP_ACCEPT=RendererB.media_type)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -235,6 +239,13 @@ class JSONRendererTests(TestCase):
     Tests specific to the JSON Renderer
     """
 
+    def test_render_lazy_strings(self):
+        """
+        JSONRenderer should deal with lazy translated strings.
+        """
+        ret = JSONRenderer().render(_('test'))
+        self.assertEqual(ret, b'"test"')
+
     def test_without_content_type_args(self):
         """
         Test basic JSON rendering.
@@ -243,7 +254,7 @@ class JSONRendererTests(TestCase):
         renderer = JSONRenderer()
         content = renderer.render(obj, 'application/json')
         # Fix failing test case which depends on version of JSON library.
-        self.assertEqual(content, _flat_repr)
+        self.assertEqual(content.decode('utf-8'), _flat_repr)
 
     def test_with_content_type_args(self):
         """
@@ -252,7 +263,24 @@ class JSONRendererTests(TestCase):
         obj = {'foo': ['bar', 'baz']}
         renderer = JSONRenderer()
         content = renderer.render(obj, 'application/json; indent=2')
-        self.assertEqual(strip_trailing_whitespace(content), _indented_repr)
+        self.assertEqual(strip_trailing_whitespace(content.decode('utf-8')), _indented_repr)
+
+    def test_check_ascii(self):
+        obj = {'countries': ['United Kingdom', 'France', 'España']}
+        renderer = JSONRenderer()
+        content = renderer.render(obj, 'application/json')
+        self.assertEqual(content, '{"countries": ["United Kingdom", "France", "Espa\\u00f1a"]}'.encode('utf-8'))
+
+
+class UnicodeJSONRendererTests(TestCase):
+    """
+    Tests specific for the Unicode JSON Renderer
+    """
+    def test_proper_encoding(self):
+        obj = {'countries': ['United Kingdom', 'France', 'España']}
+        renderer = UnicodeJSONRenderer()
+        content = renderer.render(obj, 'application/json')
+        self.assertEqual(content, '{"countries": ["United Kingdom", "France", "España"]}'.encode('utf-8'))
 
 
 class JSONPRendererTests(TestCase):
@@ -260,7 +288,7 @@ class JSONPRendererTests(TestCase):
     Tests specific to the JSONP Renderer
     """
 
-    urls = 'rest_framework.tests.renderers'
+    urls = 'rest_framework.tests.test_renderers'
 
     def test_without_callback_with_json_renderer(self):
         """
@@ -269,7 +297,7 @@ class JSONPRendererTests(TestCase):
         resp = self.client.get('/jsonp/jsonrenderer',
                                HTTP_ACCEPT='application/javascript')
         self.assertEqual(resp.status_code, status.HTTP_200_OK)
-        self.assertEqual(resp['Content-Type'], 'application/javascript')
+        self.assertEqual(resp['Content-Type'], 'application/javascript; charset=utf-8')
         self.assertEqual(resp.content,
             ('callback(%s);' % _flat_repr).encode('ascii'))
 
@@ -280,7 +308,7 @@ class JSONPRendererTests(TestCase):
         resp = self.client.get('/jsonp/nojsonrenderer',
                                HTTP_ACCEPT='application/javascript')
         self.assertEqual(resp.status_code, status.HTTP_200_OK)
-        self.assertEqual(resp['Content-Type'], 'application/javascript')
+        self.assertEqual(resp['Content-Type'], 'application/javascript; charset=utf-8')
         self.assertEqual(resp.content,
             ('callback(%s);' % _flat_repr).encode('ascii'))
 
@@ -292,7 +320,7 @@ class JSONPRendererTests(TestCase):
         resp = self.client.get('/jsonp/nojsonrenderer?callback=' + callback_func,
                                HTTP_ACCEPT='application/javascript')
         self.assertEqual(resp.status_code, status.HTTP_200_OK)
-        self.assertEqual(resp['Content-Type'], 'application/javascript')
+        self.assertEqual(resp['Content-Type'], 'application/javascript; charset=utf-8')
         self.assertEqual(resp.content,
             ('%s(%s);' % (callback_func, _flat_repr)).encode('ascii'))
 
@@ -433,7 +461,7 @@ class CacheRenderTest(TestCase):
     Tests specific to caching responses
     """
 
-    urls = 'rest_framework.tests.renderers'
+    urls = 'rest_framework.tests.test_renderers'
 
     cache_key = 'just_a_cache_key'
 
diff --git a/rest_framework/tests/request.py b/rest_framework/tests/test_request.py
index 97e5af20..a5c5e84c 100644
--- a/rest_framework/tests/request.py
+++ b/rest_framework/tests/test_request.py
@@ -254,7 +254,7 @@ urlpatterns = patterns('',
 
 
 class TestContentParsingWithAuthentication(TestCase):
-    urls = 'rest_framework.tests.request'
+    urls = 'rest_framework.tests.test_request'
 
     def setUp(self):
         self.csrf_client = Client(enforce_csrf_checks=True)
diff --git a/rest_framework/tests/response.py b/rest_framework/tests/test_response.py
index aecf83f4..eea3c641 100644
--- a/rest_framework/tests/response.py
+++ b/rest_framework/tests/test_response.py
@@ -1,14 +1,18 @@
 from __future__ import unicode_literals
 from django.test import TestCase
+from rest_framework.tests.models import BasicModel, BasicModelSerializer
 from rest_framework.compat import patterns, url, include
 from rest_framework.response import Response
 from rest_framework.views import APIView
+from rest_framework import generics
+from rest_framework import routers
 from rest_framework import status
 from rest_framework.renderers import (
     BaseRenderer,
     JSONRenderer,
     BrowsableAPIRenderer
 )
+from rest_framework import viewsets
 from rest_framework.settings import api_settings
 from rest_framework.compat import six
 
@@ -21,6 +25,9 @@ class MockJsonRenderer(BaseRenderer):
     media_type = 'application/json'
 
 
+class MockTextMediaRenderer(BaseRenderer):
+    media_type = 'text/html'
+
 DUMMYSTATUS = status.HTTP_200_OK
 DUMMYCONTENT = 'dummycontent'
 
@@ -44,13 +51,26 @@ class RendererB(BaseRenderer):
         return RENDERER_B_SERIALIZER(data)
 
 
+class RendererC(RendererB):
+    media_type = 'mock/rendererc'
+    format = 'formatc'
+    charset = "rendererc"
+
+
 class MockView(APIView):
-    renderer_classes = (RendererA, RendererB)
+    renderer_classes = (RendererA, RendererB, RendererC)
 
     def get(self, request, **kwargs):
         return Response(DUMMYCONTENT, status=DUMMYSTATUS)
 
 
+class MockViewSettingContentType(APIView):
+    renderer_classes = (RendererA, RendererB, RendererC)
+
+    def get(self, request, **kwargs):
+        return Response(DUMMYCONTENT, status=DUMMYSTATUS, content_type='setbyview')
+
+
 class HTMLView(APIView):
     renderer_classes = (BrowsableAPIRenderer, )
 
@@ -65,11 +85,29 @@ class HTMLView1(APIView):
         return Response('text')
 
 
+class HTMLNewModelViewSet(viewsets.ModelViewSet):
+    model = BasicModel
+
+
+class HTMLNewModelView(generics.ListCreateAPIView):
+    renderer_classes = (BrowsableAPIRenderer,)
+    permission_classes = []
+    serializer_class = BasicModelSerializer
+    model = BasicModel
+
+
+new_model_viewset_router = routers.DefaultRouter()
+new_model_viewset_router.register(r'', HTMLNewModelViewSet)
+
+
 urlpatterns = patterns('',
-    url(r'^.*\.(?P<format>.+)$', MockView.as_view(renderer_classes=[RendererA, RendererB])),
-    url(r'^$', MockView.as_view(renderer_classes=[RendererA, RendererB])),
+    url(r'^setbyview$', MockViewSettingContentType.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
+    url(r'^.*\.(?P<format>.+)$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
+    url(r'^$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
     url(r'^html$', HTMLView.as_view()),
     url(r'^html1$', HTMLView1.as_view()),
+    url(r'^html_new_model$', HTMLNewModelView.as_view()),
+    url(r'^html_new_model_viewset', include(new_model_viewset_router.urls)),
     url(r'^restframework', include('rest_framework.urls', namespace='rest_framework'))
 )
 
@@ -80,12 +118,12 @@ class RendererIntegrationTests(TestCase):
     End-to-end testing of renderers using an ResponseMixin on a generic view.
     """
 
-    urls = 'rest_framework.tests.response'
+    urls = 'rest_framework.tests.test_response'
 
     def test_default_renderer_serializes_content(self):
         """If the Accept header is not set the default renderer should serialize the response."""
         resp = self.client.get('/')
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -93,13 +131,13 @@ class RendererIntegrationTests(TestCase):
         """No response must be included in HEAD requests."""
         resp = self.client.head('/')
         self.assertEqual(resp.status_code, DUMMYSTATUS)
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, six.b(''))
 
     def test_default_renderer_serializes_content_on_accept_any(self):
         """If the Accept header is set to */* the default renderer should serialize the response."""
         resp = self.client.get('/', HTTP_ACCEPT='*/*')
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -107,7 +145,7 @@ class RendererIntegrationTests(TestCase):
         """If the Accept header is set the specified renderer should serialize the response.
         (In this case we check that works for the default renderer)"""
         resp = self.client.get('/', HTTP_ACCEPT=RendererA.media_type)
-        self.assertEqual(resp['Content-Type'], RendererA.media_type)
+        self.assertEqual(resp['Content-Type'], RendererA.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -115,7 +153,7 @@ class RendererIntegrationTests(TestCase):
         """If the Accept header is set the specified renderer should serialize the response.
         (In this case we check that works for a non-default renderer)"""
         resp = self.client.get('/', HTTP_ACCEPT=RendererB.media_type)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -126,7 +164,7 @@ class RendererIntegrationTests(TestCase):
             RendererB.media_type
         )
         resp = self.client.get('/' + param)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -134,7 +172,7 @@ class RendererIntegrationTests(TestCase):
         """If a 'format' query is specified, the renderer with the matching
         format attribute should serialize the response."""
         resp = self.client.get('/?format=%s' % RendererB.format)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -142,7 +180,7 @@ class RendererIntegrationTests(TestCase):
         """If a 'format' keyword arg is specified, the renderer with the matching
         format attribute should serialize the response."""
         resp = self.client.get('/something.formatb')
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -151,7 +189,7 @@ class RendererIntegrationTests(TestCase):
         the renderer with the matching format attribute should serialize the response."""
         resp = self.client.get('/?format=%s' % RendererB.format,
                                HTTP_ACCEPT=RendererB.media_type)
-        self.assertEqual(resp['Content-Type'], RendererB.media_type)
+        self.assertEqual(resp['Content-Type'], RendererB.media_type + '; charset=utf-8')
         self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
         self.assertEqual(resp.status_code, DUMMYSTATUS)
 
@@ -160,7 +198,7 @@ class Issue122Tests(TestCase):
     """
     Tests that covers #122.
     """
-    urls = 'rest_framework.tests.response'
+    urls = 'rest_framework.tests.test_response'
 
     def test_only_html_renderer(self):
         """
@@ -173,3 +211,68 @@ class Issue122Tests(TestCase):
         Test if no infinite recursion occurs.
         """
         self.client.get('/html1')
+
+
+class Issue467Tests(TestCase):
+    """
+    Tests for #467
+    """
+
+    urls = 'rest_framework.tests.test_response'
+
+    def test_form_has_label_and_help_text(self):
+        resp = self.client.get('/html_new_model')
+        self.assertEqual(resp['Content-Type'], 'text/html; charset=utf-8')
+        self.assertContains(resp, 'Text comes here')
+        self.assertContains(resp, 'Text description.')
+
+
+class Issue807Tests(TestCase):
+    """
+    Covers #807
+    """
+
+    urls = 'rest_framework.tests.test_response'
+
+    def test_does_not_append_charset_by_default(self):
+        """
+        Renderers don't include a charset unless set explicitly.
+        """
+        headers = {"HTTP_ACCEPT": RendererA.media_type}
+        resp = self.client.get('/', **headers)
+        expected = "{0}; charset={1}".format(RendererA.media_type, 'utf-8')
+        self.assertEqual(expected, resp['Content-Type'])
+
+    def test_if_there_is_charset_specified_on_renderer_it_gets_appended(self):
+        """
+        If renderer class has charset attribute declared, it gets appended
+        to Response's Content-Type
+        """
+        headers = {"HTTP_ACCEPT": RendererC.media_type}
+        resp = self.client.get('/', **headers)
+        expected = "{0}; charset={1}".format(RendererC.media_type, RendererC.charset)
+        self.assertEqual(expected, resp['Content-Type'])
+
+    def test_content_type_set_explictly_on_response(self):
+        """
+        The content type may be set explictly on the response.
+        """
+        headers = {"HTTP_ACCEPT": RendererC.media_type}
+        resp = self.client.get('/setbyview', **headers)
+        self.assertEqual('setbyview', resp['Content-Type'])
+
+    def test_viewset_label_help_text(self):
+        param = '?%s=%s' % (
+            api_settings.URL_ACCEPT_OVERRIDE,
+            'text/html'
+        )
+        resp = self.client.get('/html_new_model_viewset/' + param)
+        self.assertEqual(resp['Content-Type'], 'text/html; charset=utf-8')
+        self.assertContains(resp, 'Text comes here')
+        self.assertContains(resp, 'Text description.')
+
+    def test_form_has_label_and_help_text(self):
+        resp = self.client.get('/html_new_model')
+        self.assertEqual(resp['Content-Type'], 'text/html; charset=utf-8')
+        self.assertContains(resp, 'Text comes here')
+        self.assertContains(resp, 'Text description.')
diff --git a/rest_framework/tests/reverse.py b/rest_framework/tests/test_reverse.py
index cb8d8132..93ef5637 100644
--- a/rest_framework/tests/reverse.py
+++ b/rest_framework/tests/test_reverse.py
@@ -19,7 +19,7 @@ class ReverseTests(TestCase):
     """
     Tests for fully qualified URLs when using `reverse`.
     """
-    urls = 'rest_framework.tests.reverse'
+    urls = 'rest_framework.tests.test_reverse'
 
     def test_reversed_urls_are_fully_qualified(self):
         request = factory.get('/view')
diff --git a/rest_framework/tests/test_routers.py b/rest_framework/tests/test_routers.py
new file mode 100644
index 00000000..a7534f70
--- /dev/null
+++ b/rest_framework/tests/test_routers.py
@@ -0,0 +1,150 @@
+from __future__ import unicode_literals
+from django.db import models
+from django.test import TestCase
+from django.test.client import RequestFactory
+from rest_framework import serializers, viewsets
+from rest_framework.compat import include, patterns, url
+from rest_framework.decorators import link, action
+from rest_framework.response import Response
+from rest_framework.routers import SimpleRouter
+
+factory = RequestFactory()
+
+urlpatterns = patterns('',)
+
+
+class BasicViewSet(viewsets.ViewSet):
+    def list(self, request, *args, **kwargs):
+        return Response({'method': 'list'})
+
+    @action()
+    def action1(self, request, *args, **kwargs):
+        return Response({'method': 'action1'})
+
+    @action()
+    def action2(self, request, *args, **kwargs):
+        return Response({'method': 'action2'})
+
+    @action(methods=['post', 'delete'])
+    def action3(self, request, *args, **kwargs):
+        return Response({'method': 'action2'})
+
+    @link()
+    def link1(self, request, *args, **kwargs):
+        return Response({'method': 'link1'})
+
+    @link()
+    def link2(self, request, *args, **kwargs):
+        return Response({'method': 'link2'})
+
+
+class TestSimpleRouter(TestCase):
+    def setUp(self):
+        self.router = SimpleRouter()
+
+    def test_link_and_action_decorator(self):
+        routes = self.router.get_routes(BasicViewSet)
+        decorator_routes = routes[2:]
+        # Make sure all these endpoints exist and none have been clobbered
+        for i, endpoint in enumerate(['action1', 'action2', 'action3', 'link1', 'link2']):
+            route = decorator_routes[i]
+            # check url listing
+            self.assertEqual(route.url,
+                             '^{{prefix}}/{{lookup}}/{0}{{trailing_slash}}$'.format(endpoint))
+            # check method to function mapping
+            if endpoint == 'action3':
+                methods_map = ['post', 'delete']
+            elif endpoint.startswith('action'):
+                methods_map = ['post']
+            else:
+                methods_map = ['get']
+            for method in methods_map:
+                self.assertEqual(route.mapping[method], endpoint)
+
+
+class RouterTestModel(models.Model):
+    uuid = models.CharField(max_length=20)
+    text = models.CharField(max_length=200)
+
+
+class TestCustomLookupFields(TestCase):
+    """
+    Ensure that custom lookup fields are correctly routed.
+    """
+    urls = 'rest_framework.tests.test_routers'
+
+    def setUp(self):
+        class NoteSerializer(serializers.HyperlinkedModelSerializer):
+            class Meta:
+                model = RouterTestModel
+                lookup_field = 'uuid'
+                fields = ('url', 'uuid', 'text')
+
+        class NoteViewSet(viewsets.ModelViewSet):
+            queryset = RouterTestModel.objects.all()
+            serializer_class = NoteSerializer
+            lookup_field = 'uuid'
+
+        RouterTestModel.objects.create(uuid='123', text='foo bar')
+
+        self.router = SimpleRouter()
+        self.router.register(r'notes', NoteViewSet)
+
+        from rest_framework.tests import test_routers
+        urls = getattr(test_routers, 'urlpatterns')
+        urls += patterns('',
+            url(r'^', include(self.router.urls)),
+        )
+
+    def test_custom_lookup_field_route(self):
+        detail_route = self.router.urls[-1]
+        detail_url_pattern = detail_route.regex.pattern
+        self.assertIn('<uuid>', detail_url_pattern)
+
+    def test_retrieve_lookup_field_list_view(self):
+        response = self.client.get('/notes/')
+        self.assertEqual(response.data,
+            [{
+                "url": "http://testserver/notes/123/",
+                "uuid": "123", "text": "foo bar"
+            }]
+        )
+
+    def test_retrieve_lookup_field_detail_view(self):
+        response = self.client.get('/notes/123/')
+        self.assertEqual(response.data,
+            {
+                "url": "http://testserver/notes/123/",
+                "uuid": "123", "text": "foo bar"
+            }
+        )
+
+
+class TestTrailingSlash(TestCase):
+    def setUp(self):
+        class NoteViewSet(viewsets.ModelViewSet):
+            model = RouterTestModel
+
+        self.router = SimpleRouter()
+        self.router.register(r'notes', NoteViewSet)
+        self.urls = self.router.urls
+
+    def test_urls_have_trailing_slash_by_default(self):
+        expected = ['^notes/$', '^notes/(?P<pk>[^/]+)/$']
+        for idx in range(len(expected)):
+            self.assertEqual(expected[idx], self.urls[idx].regex.pattern)
+
+
+class TestTrailingSlash(TestCase):
+    def setUp(self):
+        class NoteViewSet(viewsets.ModelViewSet):
+            model = RouterTestModel
+
+        self.router = SimpleRouter(trailing_slash=False)
+        self.router.register(r'notes', NoteViewSet)
+        self.urls = self.router.urls
+
+    def test_urls_can_have_trailing_slash_removed(self):
+        expected = ['^notes$', '^notes/(?P<pk>[^/]+)$']
+        for idx in range(len(expected)):
+            self.assertEqual(expected[idx], self.urls[idx].regex.pattern)
diff --git a/rest_framework/tests/serializer.py b/rest_framework/tests/test_serializer.py
index 84e1ee4e..8b87a084 100644
--- a/rest_framework/tests/serializer.py
+++ b/rest_framework/tests/test_serializer.py
@@ -1,10 +1,14 @@
 from __future__ import unicode_literals
-from django.utils.datastructures import MultiValueDict
+from django.db import models
+from django.db.models.fields import BLANK_CHOICE_DASH
 from django.test import TestCase
-from rest_framework import serializers
+from django.utils.datastructures import MultiValueDict
+from django.utils.translation import ugettext_lazy as _
+from rest_framework import serializers, fields, relations
 from rest_framework.tests.models import (HasPositiveIntegerAsChoice, Album, ActionItem, Anchor, BasicModel,
     BlankFieldModel, BlogPost, BlogPostComment, Book, CallableDefaultValueModel, DefaultValueModel,
-    ManyToManyModel, Person, ReadOnlyManyToManyModel, Photo)
+    ManyToManyModel, Person, ReadOnlyManyToManyModel, Photo, RESTFrameworkModel)
+from rest_framework.tests.models import BasicModelSerializer
 import datetime
 import pickle
 
@@ -43,6 +47,17 @@ class CommentSerializer(serializers.Serializer):
         return instance
 
 
+class NamesSerializer(serializers.Serializer):
+    first = serializers.CharField()
+    last = serializers.CharField(required=False, default='')
+    initials = serializers.CharField(required=False, default='')
+
+
+class PersonIdentifierSerializer(serializers.Serializer):
+    ssn = serializers.CharField()
+    names = NamesSerializer(source='names', required=False)
+
+
 class BookSerializer(serializers.ModelSerializer):
     isbn = serializers.RegexField(regex=r'^[0-9]{13}$', error_messages={'invalid': 'isbn has to be exact 13 numbers'})
 
@@ -78,6 +93,29 @@ class PersonSerializer(serializers.ModelSerializer):
         read_only_fields = ('age',)
 
 
+class NestedSerializer(serializers.Serializer):
+    info = serializers.Field()
+
+
+class ModelSerializerWithNestedSerializer(serializers.ModelSerializer):
+    nested = NestedSerializer(source='*')
+
+    class Meta:
+        model = Person
+
+
+class PersonSerializerInvalidReadOnly(serializers.ModelSerializer):
+    """
+    Testing for #652.
+    """
+    info = serializers.Field(source='info')
+
+    class Meta:
+        model = Person
+        fields = ('name', 'age', 'info')
+        read_only_fields = ('age', 'info')
+
+
 class AlbumsSerializer(serializers.ModelSerializer):
 
     class Meta:
@@ -91,11 +129,6 @@ class PositiveIntegerAsChoiceSerializer(serializers.ModelSerializer):
         fields = ['some_integer']
 
 
-class BrokenModelSerializer(serializers.ModelSerializer):
-    class Meta:
-        fields = ['some_field']
-
-
 class BasicTests(TestCase):
     def setUp(self):
         self.comment = Comment(
@@ -141,6 +174,42 @@ class BasicTests(TestCase):
         self.assertFalse(serializer.object is expected)
         self.assertEqual(serializer.data['sub_comment'], 'And Merry Christmas!')
 
+    def test_create_nested(self):
+        """Test a serializer with nested data."""
+        names = {'first': 'John', 'last': 'Doe', 'initials': 'jd'}
+        data = {'ssn': '1234567890', 'names': names}
+        serializer = PersonIdentifierSerializer(data=data)
+
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(serializer.object, data)
+        self.assertFalse(serializer.object is data)
+        self.assertEqual(serializer.data['names'], names)
+
+    def test_create_partial_nested(self):
+        """Test a serializer with nested data which has missing fields."""
+        names = {'first': 'John'}
+        data = {'ssn': '1234567890', 'names': names}
+        serializer = PersonIdentifierSerializer(data=data)
+
+        expected_names = {'first': 'John', 'last': '', 'initials': ''}
+        data['names'] = expected_names
+
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(serializer.object, data)
+        self.assertFalse(serializer.object is expected_names)
+        self.assertEqual(serializer.data['names'], expected_names)
+
+    def test_null_nested(self):
+        """Test a serializer with a nonexistent nested field"""
+        data = {'ssn': '1234567890'}
+        serializer = PersonIdentifierSerializer(data=data)
+
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(serializer.object, data)
+        self.assertFalse(serializer.object is data)
+        expected = {'ssn': '1234567890', 'names': None}
+        self.assertEqual(serializer.data, expected)
+
     def test_update(self):
         serializer = CommentSerializer(self.comment, data=self.data)
         expected = self.comment
@@ -189,6 +258,12 @@ class BasicTests(TestCase):
         # Assert age is unchanged (35)
         self.assertEqual(instance.age, self.person_data['age'])
 
+    def test_invalid_read_only_fields(self):
+        """
+        Regression test for #652.
+        """
+        self.assertRaises(AssertionError, PersonSerializerInvalidReadOnly, [])
+
 
 class DictStyleSerializer(serializers.Serializer):
     """
@@ -344,19 +419,34 @@ class ValidationTests(TestCase):
         Assert that a meaningful exception message is outputted when the model
         field is missing (e.g. when mistyping ``model``).
         """
+        class BrokenModelSerializer(serializers.ModelSerializer):
+            class Meta:
+                fields = ['some_field']
+
         try:
-            serializer = BrokenModelSerializer()
+            BrokenModelSerializer()
         except AssertionError as e:
             self.assertEqual(e.args[0], "Serializer class 'BrokenModelSerializer' is missing 'model' Meta option")
         except:
             self.fail('Wrong exception type thrown.')
 
+    def test_writable_star_source_on_nested_serializer(self):
+        """
+        Assert that a nested serializer instantiated with source='*' correctly
+        expands the data into the outer serializer.
+        """
+        serializer = ModelSerializerWithNestedSerializer(data={
+            'name': 'marko',
+            'nested': {'info': 'hi'}},
+        )
+        self.assertEqual(serializer.is_valid(), True)
+
 
 class CustomValidationTests(TestCase):
     class CommentSerializerWithFieldValidator(CommentSerializer):
 
         def validate_email(self, attrs, source):
-            value = attrs[source]
+            attrs[source]
             return attrs
 
         def validate_content(self, attrs, source):
@@ -853,23 +943,6 @@ class RelatedTraversalTest(TestCase):
 
         self.assertEqual(serializer.data, expected)
 
-    def test_queryset_nested_traversal(self):
-        """
-        Relational fields should be able to use methods as their source.
-        """
-        BlogPost.objects.create(title='blah')
-
-        class QuerysetMethodSerializer(serializers.Serializer):
-            blogposts = serializers.RelatedField(many=True, source='get_all_blogposts')
-
-        class ClassWithQuerysetMethod(object):
-            def get_all_blogposts(self):
-                return BlogPost.objects
-
-        obj = ClassWithQuerysetMethod()
-        serializer = QuerysetMethodSerializer(obj)
-        self.assertEqual(serializer.data, {'blogposts': ['BlogPost object']})
-
 
 class SerializerMethodFieldTests(TestCase):
     def setUp(self):
@@ -1000,6 +1073,130 @@ class SerializerPickleTests(TestCase):
         repr(pickle.loads(pickle.dumps(data, 0)))
 
 
+# test for issue #725
+class SeveralChoicesModel(models.Model):
+    color = models.CharField(
+        max_length=10,
+        choices=[('red', 'Red'), ('green', 'Green'), ('blue', 'Blue')],
+        blank=False
+    )
+    drink = models.CharField(
+        max_length=10,
+        choices=[('beer', 'Beer'), ('wine', 'Wine'), ('cider', 'Cider')],
+        blank=False,
+        default='beer'
+    )
+    os = models.CharField(
+        max_length=10,
+        choices=[('linux', 'Linux'), ('osx', 'OSX'), ('windows', 'Windows')],
+        blank=True
+    )
+    music_genre = models.CharField(
+        max_length=10,
+        choices=[('rock', 'Rock'), ('metal', 'Metal'), ('grunge', 'Grunge')],
+        blank=True,
+        default='metal'
+    )
+
+
+class SerializerChoiceFields(TestCase):
+
+    def setUp(self):
+        super(SerializerChoiceFields, self).setUp()
+
+        class SeveralChoicesSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = SeveralChoicesModel
+                fields = ('color', 'drink', 'os', 'music_genre')
+
+        self.several_choices_serializer = SeveralChoicesSerializer
+
+    def test_choices_blank_false_not_default(self):
+        serializer = self.several_choices_serializer()
+        self.assertEqual(
+            serializer.fields['color'].choices,
+            [('red', 'Red'), ('green', 'Green'), ('blue', 'Blue')]
+        )
+
+    def test_choices_blank_false_with_default(self):
+        serializer = self.several_choices_serializer()
+        self.assertEqual(
+            serializer.fields['drink'].choices,
+            [('beer', 'Beer'), ('wine', 'Wine'), ('cider', 'Cider')]
+        )
+
+    def test_choices_blank_true_not_default(self):
+        serializer = self.several_choices_serializer()
+        self.assertEqual(
+            serializer.fields['os'].choices,
+            BLANK_CHOICE_DASH + [('linux', 'Linux'), ('osx', 'OSX'), ('windows', 'Windows')]
+        )
+
+    def test_choices_blank_true_with_default(self):
+        serializer = self.several_choices_serializer()
+        self.assertEqual(
+            serializer.fields['music_genre'].choices,
+            BLANK_CHOICE_DASH + [('rock', 'Rock'), ('metal', 'Metal'), ('grunge', 'Grunge')]
+        )
+
+
+# Regression tests for #675
+class Ticket(models.Model):
+    assigned = models.ForeignKey(
+        Person, related_name='assigned_tickets')
+    reviewer = models.ForeignKey(
+        Person, blank=True, null=True, related_name='reviewed_tickets')
+
+
+class SerializerRelatedChoicesTest(TestCase):
+
+    def setUp(self):
+        super(SerializerRelatedChoicesTest, self).setUp()
+
+        class RelatedChoicesSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = Ticket
+                fields = ('assigned', 'reviewer')
+
+        self.related_fields_serializer = RelatedChoicesSerializer
+
+    def test_empty_queryset_required(self):
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['assigned'].queryset.count(), 0)
+        self.assertEqual(
+            [x for x in serializer.fields['assigned'].widget.choices],
+            []
+        )
+
+    def test_empty_queryset_not_required(self):
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['reviewer'].queryset.count(), 0)
+        self.assertEqual(
+            [x for x in serializer.fields['reviewer'].widget.choices],
+            [('', '---------')]
+        )
+
+    def test_with_some_persons_required(self):
+        Person.objects.create(name="Lionel Messi")
+        Person.objects.create(name="Xavi Hernandez")
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['assigned'].queryset.count(), 2)
+        self.assertEqual(
+            [x for x in serializer.fields['assigned'].widget.choices],
+            [(1, 'Person object - 1'), (2, 'Person object - 2')]
+        )
+
+    def test_with_some_persons_not_required(self):
+        Person.objects.create(name="Lionel Messi")
+        Person.objects.create(name="Xavi Hernandez")
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['reviewer'].queryset.count(), 2)
+        self.assertEqual(
+            [x for x in serializer.fields['reviewer'].widget.choices],
+            [('', '---------'), (1, 'Person object - 1'), (2, 'Person object - 2')]
+        )
+
+
 class DepthTest(TestCase):
     def test_implicit_nesting(self):
 
@@ -1125,3 +1322,312 @@ class DeserializeListTestCase(TestCase):
         self.assertFalse(serializer.is_valid())
         expected = [{}, {'email': ['This field is required.']}, {}]
         self.assertEqual(serializer.errors, expected)
+
+
+# Test for issue 747
+
+class LazyStringModel(object):
+    def __init__(self, lazystring):
+        self.lazystring = lazystring
+
+
+class LazyStringSerializer(serializers.Serializer):
+    lazystring = serializers.Field()
+
+    def restore_object(self, attrs, instance=None):
+        if instance is not None:
+            instance.lazystring = attrs.get('lazystring', instance.lazystring)
+            return instance
+        return LazyStringModel(**attrs)
+
+
+class LazyStringsTestCase(TestCase):
+    def setUp(self):
+        self.model = LazyStringModel(lazystring=_('lazystring'))
+
+    def test_lazy_strings_are_translated(self):
+        serializer = LazyStringSerializer(self.model)
+        self.assertEqual(type(serializer.data['lazystring']),
+                         type('lazystring'))
+
+
+# Test for issue #467
+
+class FieldLabelTest(TestCase):
+    def setUp(self):
+        self.serializer_class = BasicModelSerializer
+
+    def test_label_from_model(self):
+        """
+        Validates that label and help_text are correctly copied from the model class.
+        """
+        serializer = self.serializer_class()
+        text_field = serializer.fields['text']
+
+        self.assertEqual('Text comes here', text_field.label)
+        self.assertEqual('Text description.', text_field.help_text)
+
+    def test_field_ctor(self):
+        """
+        This is check that ctor supports both label and help_text.
+        """
+        self.assertEqual('Label', fields.Field(label='Label', help_text='Help').label)
+        self.assertEqual('Help', fields.CharField(label='Label', help_text='Help').help_text)
+        self.assertEqual('Label', relations.HyperlinkedRelatedField(view_name='fake', label='Label', help_text='Help', many=True).label)
+
+
+class AttributeMappingOnAutogeneratedFieldsTests(TestCase):
+
+    def setUp(self):
+        class AMOAFModel(RESTFrameworkModel):
+            char_field = models.CharField(max_length=1024, blank=True)
+            comma_separated_integer_field = models.CommaSeparatedIntegerField(max_length=1024, blank=True)
+            decimal_field = models.DecimalField(max_digits=64, decimal_places=32, blank=True)
+            email_field = models.EmailField(max_length=1024, blank=True)
+            file_field = models.FileField(max_length=1024, blank=True)
+            image_field = models.ImageField(max_length=1024, blank=True)
+            slug_field = models.SlugField(max_length=1024, blank=True)
+            url_field = models.URLField(max_length=1024, blank=True)
+
+        class AMOAFSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = AMOAFModel
+
+        self.serializer_class = AMOAFSerializer
+        self.fields_attributes = {
+            'char_field': [
+                ('max_length', 1024),
+            ],
+            'comma_separated_integer_field': [
+                ('max_length', 1024),
+            ],
+            'decimal_field': [
+                ('max_digits', 64),
+                ('decimal_places', 32),
+            ],
+            'email_field': [
+                ('max_length', 1024),
+            ],
+            'file_field': [
+                ('max_length', 1024),
+            ],
+            'image_field': [
+                ('max_length', 1024),
+            ],
+            'slug_field': [
+                ('max_length', 1024),
+            ],
+            'url_field': [
+                ('max_length', 1024),
+            ],
+        }
+
+    def field_test(self, field):
+        serializer = self.serializer_class(data={})
+        self.assertEqual(serializer.is_valid(), True)
+
+        for attribute in self.fields_attributes[field]:
+            self.assertEqual(
+                getattr(serializer.fields[field], attribute[0]),
+                attribute[1]
+            )
+
+    def test_char_field(self):
+        self.field_test('char_field')
+
+    def test_comma_separated_integer_field(self):
+        self.field_test('comma_separated_integer_field')
+
+    def test_decimal_field(self):
+        self.field_test('decimal_field')
+
+    def test_email_field(self):
+        self.field_test('email_field')
+
+    def test_file_field(self):
+        self.field_test('file_field')
+
+    def test_image_field(self):
+        self.field_test('image_field')
+
+    def test_slug_field(self):
+        self.field_test('slug_field')
+
+    def test_url_field(self):
+        self.field_test('url_field')
+
+
+class DefaultValuesOnAutogeneratedFieldsTests(TestCase):
+
+    def setUp(self):
+        class DVOAFModel(RESTFrameworkModel):
+            positive_integer_field = models.PositiveIntegerField(blank=True)
+            positive_small_integer_field = models.PositiveSmallIntegerField(blank=True)
+            email_field = models.EmailField(blank=True)
+            file_field = models.FileField(blank=True)
+            image_field = models.ImageField(blank=True)
+            slug_field = models.SlugField(blank=True)
+            url_field = models.URLField(blank=True)
+
+        class DVOAFSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = DVOAFModel
+
+        self.serializer_class = DVOAFSerializer
+        self.fields_attributes = {
+            'positive_integer_field': [
+                ('min_value', 0),
+            ],
+            'positive_small_integer_field': [
+                ('min_value', 0),
+            ],
+            'email_field': [
+                ('max_length', 75),
+            ],
+            'file_field': [
+                ('max_length', 100),
+            ],
+            'image_field': [
+                ('max_length', 100),
+            ],
+            'slug_field': [
+                ('max_length', 50),
+            ],
+            'url_field': [
+                ('max_length', 200),
+            ],
+        }
+
+    def field_test(self, field):
+        serializer = self.serializer_class(data={})
+        self.assertEqual(serializer.is_valid(), True)
+
+        for attribute in self.fields_attributes[field]:
+            self.assertEqual(
+                getattr(serializer.fields[field], attribute[0]),
+                attribute[1]
+            )
+
+    def test_positive_integer_field(self):
+        self.field_test('positive_integer_field')
+
+    def test_positive_small_integer_field(self):
+        self.field_test('positive_small_integer_field')
+
+    def test_email_field(self):
+        self.field_test('email_field')
+
+    def test_file_field(self):
+        self.field_test('file_field')
+
+    def test_image_field(self):
+        self.field_test('image_field')
+
+    def test_slug_field(self):
+        self.field_test('slug_field')
+
+    def test_url_field(self):
+        self.field_test('url_field')
+
+
+class MetadataSerializer(serializers.Serializer):
+    field1 = serializers.CharField(3, required=True)
+    field2 = serializers.CharField(10, required=False)
+
+
+class MetadataSerializerTestCase(TestCase):
+    def setUp(self):
+        self.serializer = MetadataSerializer()
+
+    def test_serializer_metadata(self):
+        metadata = self.serializer.metadata()
+        expected = {
+            'field1': {
+                'required': True,
+                'max_length': 3,
+                'type': 'string',
+                'read_only': False
+            },
+            'field2': {
+                'required': False,
+                'max_length': 10,
+                'type': 'string',
+                'read_only': False
+            }
+        }
+        self.assertEqual(expected, metadata)
+
+
+### Regression test for #840
+
+class SimpleModel(models.Model):
+    text = models.CharField(max_length=100)
+
+
+class SimpleModelSerializer(serializers.ModelSerializer):
+    text = serializers.CharField()
+    other = serializers.CharField()
+
+    class Meta:
+        model = SimpleModel
+
+    def validate_other(self, attrs, source):
+        del attrs['other']
+        return attrs
+
+
+class FieldValidationRemovingAttr(TestCase):
+    def test_removing_non_model_field_in_validation(self):
+        """
+        Removing an attr during field valiation should ensure that it is not
+        passed through when restoring the object.
+
+        This allows additional non-model fields to be supported.
+
+        Regression test for #840.
+        """
+        serializer = SimpleModelSerializer(data={'text': 'foo', 'other': 'bar'})
+        self.assertTrue(serializer.is_valid())
+        serializer.save()
+        self.assertEqual(serializer.object.text, 'foo')
+
+
+### Regression test for #878
+
+class SimpleTargetModel(models.Model):
+    text = models.CharField(max_length=100)
+
+
+class SimplePKSourceModelSerializer(serializers.Serializer):
+    targets = serializers.PrimaryKeyRelatedField(queryset=SimpleTargetModel.objects.all(), many=True)
+    text = serializers.CharField()
+
+
+class SimpleSlugSourceModelSerializer(serializers.Serializer):
+    targets = serializers.SlugRelatedField(queryset=SimpleTargetModel.objects.all(), many=True, slug_field='pk')
+    text = serializers.CharField()
+
+
+class SerializerSupportsManyRelationships(TestCase):
+    def setUp(self):
+        SimpleTargetModel.objects.create(text='foo')
+        SimpleTargetModel.objects.create(text='bar')
+
+    def test_serializer_supports_pk_many_relationships(self):
+        """
+        Regression test for #878.
+
+        Note that pk behavior has a different code path to usual cases,
+        for performance reasons.
+        """
+        serializer = SimplePKSourceModelSerializer(data={'text': 'foo', 'targets': [1, 2]})
+        self.assertTrue(serializer.is_valid())
+        self.assertEqual(serializer.data, {'text': 'foo', 'targets': [1, 2]})
+
+    def test_serializer_supports_slug_many_relationships(self):
+        """
+        Regression test for #878.
+        """
+        serializer = SimpleSlugSourceModelSerializer(data={'text': 'foo', 'targets': [1, 2]})
+        self.assertTrue(serializer.is_valid())
+        self.assertEqual(serializer.data, {'text': 'foo', 'targets': [1, 2]})
diff --git a/rest_framework/tests/serializer_bulk_update.py b/rest_framework/tests/test_serializer_bulk_update.py
index 8b0ded1a..8b0ded1a 100644
--- a/rest_framework/tests/serializer_bulk_update.py
+++ b/rest_framework/tests/test_serializer_bulk_update.py
diff --git a/rest_framework/tests/serializer_nested.py b/rest_framework/tests/test_serializer_nested.py
index 71d0e24b..71d0e24b 100644
--- a/rest_framework/tests/serializer_nested.py
+++ b/rest_framework/tests/test_serializer_nested.py
diff --git a/rest_framework/tests/settings.py b/rest_framework/tests/test_settings.py
index 857375c2..857375c2 100644
--- a/rest_framework/tests/settings.py
+++ b/rest_framework/tests/test_settings.py
diff --git a/rest_framework/tests/throttling.py b/rest_framework/tests/test_throttling.py
index 11cbd8eb..da400b2f 100644
--- a/rest_framework/tests/throttling.py
+++ b/rest_framework/tests/test_throttling.py
@@ -36,7 +36,7 @@ class MockView_MinuteThrottling(APIView):
 
 
 class ThrottlingTests(TestCase):
-    urls = 'rest_framework.tests.throttling'
+    urls = 'rest_framework.tests.test_throttling'
 
     def setUp(self):
         """
diff --git a/rest_framework/tests/urlpatterns.py b/rest_framework/tests/test_urlpatterns.py
index 29ed4a96..29ed4a96 100644
--- a/rest_framework/tests/urlpatterns.py
+++ b/rest_framework/tests/test_urlpatterns.py
diff --git a/rest_framework/tests/validation.py b/rest_framework/tests/test_validation.py
index cbdd6515..a6ec0e99 100644
--- a/rest_framework/tests/validation.py
+++ b/rest_framework/tests/test_validation.py
@@ -63,3 +63,25 @@ class TestPreSaveValidationExclusions(TestCase):
         # does not have `blank=True`, so this serializer should not validate.
         serializer = ShouldValidateModelSerializer(data={'renamed': ''})
         self.assertEqual(serializer.is_valid(), False)
+
+
+class ValidationSerializer(serializers.Serializer):
+    foo = serializers.CharField()
+
+    def validate_foo(self, attrs, source):
+        raise serializers.ValidationError("foo invalid")
+
+    def validate(self, attrs):
+        raise serializers.ValidationError("serializer invalid")
+
+
+class TestAvoidValidation(TestCase):
+    """
+    If serializer was initialized with invalid data (None or non dict-like), it
+    should avoid validation layer (validate_<field> and validate methods)
+    """
+    def test_serializer_errors_has_only_invalid_data_error(self):
+        serializer = ValidationSerializer(data='invalid data')
+        self.assertFalse(serializer.is_valid())
+        self.assertDictEqual(serializer.errors,
+                             {'non_field_errors': ['Invalid data']})
diff --git a/rest_framework/tests/views.py b/rest_framework/tests/test_views.py
index 994cf6dc..2767d24c 100644
--- a/rest_framework/tests/views.py
+++ b/rest_framework/tests/test_views.py
@@ -1,12 +1,15 @@
 from __future__ import unicode_literals
+
+import copy
+
 from django.test import TestCase
 from django.test.client import RequestFactory
+
 from rest_framework import status
 from rest_framework.decorators import api_view
 from rest_framework.response import Response
 from rest_framework.settings import api_settings
 from rest_framework.views import APIView
-import copy
 
 factory = RequestFactory()
 
diff --git a/rest_framework/tests/testcases.py b/rest_framework/tests/testcases.py
deleted file mode 100644
index f8c2579e..00000000
--- a/rest_framework/tests/testcases.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# http://djangosnippets.org/snippets/1011/
-from __future__ import unicode_literals
-from django.conf import settings
-from django.core.management import call_command
-from django.db.models import loading
-from django.test import TestCase
-
-NO_SETTING = ('!', None)
-
-
-class TestSettingsManager(object):
-    """
-    A class which can modify some Django settings temporarily for a
-    test and then revert them to their original values later.
-
-    Automatically handles resyncing the DB if INSTALLED_APPS is
-    modified.
-
-    """
-    def __init__(self):
-        self._original_settings = {}
-
-    def set(self, **kwargs):
-        for k, v in kwargs.iteritems():
-            self._original_settings.setdefault(k, getattr(settings, k,
-                                                          NO_SETTING))
-            setattr(settings, k, v)
-        if 'INSTALLED_APPS' in kwargs:
-            self.syncdb()
-
-    def syncdb(self):
-        loading.cache.loaded = False
-        call_command('syncdb', verbosity=0)
-
-    def revert(self):
-        for k, v in self._original_settings.iteritems():
-            if v == NO_SETTING:
-                delattr(settings, k)
-            else:
-                setattr(settings, k, v)
-        if 'INSTALLED_APPS' in self._original_settings:
-            self.syncdb()
-        self._original_settings = {}
-
-
-class SettingsTestCase(TestCase):
-    """
-    A subclass of the Django TestCase with a settings_manager
-    attribute which is an instance of TestSettingsManager.
-
-    Comes with a tearDown() method that calls
-    self.settings_manager.revert().
-
-    """
-    def __init__(self, *args, **kwargs):
-        super(SettingsTestCase, self).__init__(*args, **kwargs)
-        self.settings_manager = TestSettingsManager()
-
-    def tearDown(self):
-        self.settings_manager.revert()
-
-
-class TestModelsTestCase(SettingsTestCase):
-    def setUp(self, *args, **kwargs):
-        installed_apps = tuple(settings.INSTALLED_APPS) + ('rest_framework.tests',)
-        self.settings_manager.set(INSTALLED_APPS=installed_apps)
diff --git a/rest_framework/tests/tests.py b/rest_framework/tests/tests.py
index 08f88e11..554ebd1a 100644
--- a/rest_framework/tests/tests.py
+++ b/rest_framework/tests/tests.py
@@ -4,11 +4,13 @@ runner to pick up the tests.  Yowzers.
 """
 from __future__ import unicode_literals
 import os
+import django
 
 modules = [filename.rsplit('.', 1)[0]
            for filename in os.listdir(os.path.dirname(__file__))
            if filename.endswith('.py') and not filename.startswith('_')]
 __test__ = dict()
 
-for module in modules:
-    exec("from rest_framework.tests.%s import *" % module)
+if django.VERSION < (1, 6):
+    for module in modules:
+        exec("from rest_framework.tests.%s import *" % module)