django-rest-framework/tests/test_hyperlinkedserializers.py

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from __future__ import unicode_literals
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import json
from django.test import TestCase
from rest_framework import generics, status, serializers
from django.conf.urls import patterns, url
from rest_framework.settings import api_settings
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from rest_framework.test import APIRequestFactory
from tests.models import (
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Anchor, BasicModel, ManyToManyModel, BlogPost, BlogPostComment,
Album, Photo, OptionalRelationModel
)
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factory = APIRequestFactory()
class BlogPostCommentSerializer(serializers.ModelSerializer):
url = serializers.HyperlinkedIdentityField(view_name='blogpostcomment-detail')
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text = serializers.CharField()
blog_post_url = serializers.HyperlinkedRelatedField(source='blog_post', view_name='blogpost-detail')
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class Meta:
model = BlogPostComment
fields = ('text', 'blog_post_url', 'url')
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class PhotoSerializer(serializers.Serializer):
description = serializers.CharField()
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album_url = serializers.HyperlinkedRelatedField(source='album', view_name='album-detail', queryset=Album.objects.all(), lookup_field='title')
def restore_object(self, attrs, instance=None):
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
class BasicDetail(generics.RetrieveUpdateDestroyAPIView):
model = BasicModel
model_serializer_class = serializers.HyperlinkedModelSerializer
class AnchorDetail(generics.RetrieveAPIView):
model = Anchor
model_serializer_class = serializers.HyperlinkedModelSerializer
class ManyToManyList(generics.ListAPIView):
model = ManyToManyModel
model_serializer_class = serializers.HyperlinkedModelSerializer
class ManyToManyDetail(generics.RetrieveAPIView):
model = ManyToManyModel
model_serializer_class = serializers.HyperlinkedModelSerializer
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class BlogPostCommentListCreate(generics.ListCreateAPIView):
model = BlogPostComment
serializer_class = BlogPostCommentSerializer
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class BlogPostCommentDetail(generics.RetrieveAPIView):
model = BlogPostComment
serializer_class = BlogPostCommentSerializer
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class BlogPostDetail(generics.RetrieveAPIView):
model = BlogPost
class PhotoListCreate(generics.ListCreateAPIView):
model = Photo
model_serializer_class = PhotoSerializer
class AlbumDetail(generics.RetrieveAPIView):
model = Album
serializer_class = AlbumSerializer
lookup_field = 'title'
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class OptionalRelationDetail(generics.RetrieveUpdateDestroyAPIView):
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model = OptionalRelationModel
model_serializer_class = serializers.HyperlinkedModelSerializer
urlpatterns = patterns('',
url(r'^basic/$', BasicList.as_view(), name='basicmodel-list'),
url(r'^basic/(?P<pk>\d+)/$', BasicDetail.as_view(), name='basicmodel-detail'),
url(r'^anchor/(?P<pk>\d+)/$', AnchorDetail.as_view(), name='anchor-detail'),
url(r'^manytomany/$', ManyToManyList.as_view(), name='manytomanymodel-list'),
url(r'^manytomany/(?P<pk>\d+)/$', ManyToManyDetail.as_view(), name='manytomanymodel-detail'),
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url(r'^posts/(?P<pk>\d+)/$', BlogPostDetail.as_view(), name='blogpost-detail'),
url(r'^comments/$', BlogPostCommentListCreate.as_view(), name='blogpostcomment-list'),
url(r'^comments/(?P<pk>\d+)/$', BlogPostCommentDetail.as_view(), name='blogpostcomment-detail'),
url(r'^albums/(?P<title>\w[\w-]*)/$', AlbumDetail.as_view(), name='album-detail'),
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url(r'^photos/$', PhotoListCreate.as_view(), name='photo-list'),
url(r'^optionalrelation/(?P<pk>\d+)/$', OptionalRelationDetail.as_view(), name='optionalrelationmodel-detail'),
)
class TestBasicHyperlinkedView(TestCase):
urls = 'tests.test_hyperlinkedserializers'
def setUp(self):
"""
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Create 3 BasicModel instances.
"""
items = ['foo', 'bar', 'baz']
for item in items:
BasicModel(text=item).save()
self.objects = BasicModel.objects
self.data = [
{'url': 'http://testserver/basic/%d/' % obj.id, 'text': obj.text}
for obj in self.objects.all()
]
self.list_view = BasicList.as_view()
self.detail_view = BasicDetail.as_view()
def test_get_list_view(self):
"""
GET requests to ListCreateAPIView should return list of objects.
"""
request = factory.get('/basic/')
response = self.list_view(request).render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(response.data, self.data)
def test_get_detail_view(self):
"""
GET requests to ListCreateAPIView should return list of objects.
"""
request = factory.get('/basic/1')
response = self.detail_view(request, pk=1).render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(response.data, self.data[0])
class TestManyToManyHyperlinkedView(TestCase):
urls = 'tests.test_hyperlinkedserializers'
def setUp(self):
"""
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Create 3 BasicModel instances.
"""
items = ['foo', 'bar', 'baz']
anchors = []
for item in items:
anchor = Anchor(text=item)
anchor.save()
anchors.append(anchor)
manytomany = ManyToManyModel()
manytomany.save()
manytomany.rel.add(*anchors)
self.data = [{
'url': 'http://testserver/manytomany/1/',
'rel': [
'http://testserver/anchor/1/',
'http://testserver/anchor/2/',
'http://testserver/anchor/3/',
]
}]
self.list_view = ManyToManyList.as_view()
self.detail_view = ManyToManyDetail.as_view()
def test_get_list_view(self):
"""
GET requests to ListCreateAPIView should return list of objects.
"""
request = factory.get('/manytomany/')
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response = self.list_view(request)
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self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(response.data, self.data)
def test_get_detail_view(self):
"""
GET requests to ListCreateAPIView should return list of objects.
"""
request = factory.get('/manytomany/1/')
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response = self.detail_view(request, pk=1)
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self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(response.data, self.data[0])
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class TestHyperlinkedIdentityFieldLookup(TestCase):
urls = '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])
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class TestCreateWithForeignKeys(TestCase):
urls = 'tests.test_hyperlinkedserializers'
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def setUp(self):
"""
Create a blog post
"""
self.post = BlogPost.objects.create(title="Test post")
self.create_view = BlogPostCommentListCreate.as_view()
def test_create_comment(self):
data = {
'text': 'A test comment',
'blog_post_url': 'http://testserver/posts/1/'
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}
request = factory.post('/comments/', data=data)
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response = self.create_view(request)
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self.assertEqual(response.status_code, status.HTTP_201_CREATED)
self.assertEqual(response['Location'], 'http://testserver/comments/1/')
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self.assertEqual(self.post.blogpostcomment_set.count(), 1)
self.assertEqual(self.post.blogpostcomment_set.all()[0].text, 'A test comment')
class TestCreateWithForeignKeysAndCustomSlug(TestCase):
urls = 'tests.test_hyperlinkedserializers'
def setUp(self):
"""
Create an Album
"""
self.post = Album.objects.create(title='test-album')
self.list_create_view = PhotoListCreate.as_view()
def test_create_photo(self):
data = {
'description': 'A test photo',
'album_url': 'http://testserver/albums/test-album/'
}
request = factory.post('/photos/', data=data)
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response = self.list_create_view(request)
self.assertEqual(response.status_code, status.HTTP_201_CREATED)
self.assertNotIn('Location', response, msg='Location should only be included if there is a "url" field on the serializer')
self.assertEqual(self.post.photo_set.count(), 1)
self.assertEqual(self.post.photo_set.all()[0].description, 'A test photo')
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class TestOptionalRelationHyperlinkedView(TestCase):
urls = 'tests.test_hyperlinkedserializers'
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def setUp(self):
"""
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Create 1 OptionalRelationModel instances.
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"""
OptionalRelationModel().save()
self.objects = OptionalRelationModel.objects
self.detail_view = OptionalRelationDetail.as_view()
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self.data = {"url": "http://testserver/optionalrelation/1/", "other": None}
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def test_get_detail_view(self):
"""
GET requests to RetrieveAPIView with optional relations should return None
for non existing relations.
"""
request = factory.get('/optionalrelationmodel-detail/1')
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response = self.detail_view(request, pk=1)
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self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(response.data, self.data)
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def test_put_detail_view(self):
"""
PUT requests to RetrieveUpdateDestroyAPIView with optional relations
should accept None for non existing relations.
"""
response = self.client.put('/optionalrelation/1/',
data=json.dumps(self.data),
content_type='application/json')
self.assertEqual(response.status_code, status.HTTP_200_OK)
class TestOverriddenURLField(TestCase):
def setUp(self):
class OverriddenURLSerializer(serializers.HyperlinkedModelSerializer):
url = serializers.SerializerMethodField('get_url')
class Meta:
model = BlogPost
fields = ('title', 'url')
def get_url(self, obj):
return 'foo bar'
self.Serializer = OverriddenURLSerializer
self.obj = BlogPost.objects.create(title='New blog post')
def test_overridden_url_field(self):
"""
The 'url' field should respect overriding.
Regression test for #936.
"""
serializer = self.Serializer(self.obj)
self.assertEqual(
serializer.data,
{'title': 'New blog post', 'url': 'foo bar'}
)
class TestURLFieldNameBySettings(TestCase):
urls = 'tests.test_hyperlinkedserializers'
def setUp(self):
self.saved_url_field_name = api_settings.URL_FIELD_NAME
api_settings.URL_FIELD_NAME = 'global_url_field'
class Serializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = BlogPost
fields = ('title', api_settings.URL_FIELD_NAME)
self.Serializer = Serializer
self.obj = BlogPost.objects.create(title="New blog post")
def tearDown(self):
api_settings.URL_FIELD_NAME = self.saved_url_field_name
def test_overridden_url_field_name(self):
request = factory.get('/posts/')
serializer = self.Serializer(self.obj, context={'request': request})
self.assertIn(api_settings.URL_FIELD_NAME, serializer.data)
class TestURLFieldNameByOptions(TestCase):
urls = 'tests.test_hyperlinkedserializers'
def setUp(self):
class Serializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = BlogPost
fields = ('title', 'serializer_url_field')
url_field_name = 'serializer_url_field'
self.Serializer = Serializer
self.obj = BlogPost.objects.create(title="New blog post")
def test_overridden_url_field_name(self):
request = factory.get('/posts/')
serializer = self.Serializer(self.obj, context={'request': request})
self.assertIn(self.Serializer.Meta.url_field_name, serializer.data)