mirror of
https://github.com/encode/django-rest-framework.git
synced 2024-12-01 22:14:06 +03:00
700 lines
25 KiB
Python
700 lines
25 KiB
Python
from __future__ import unicode_literals
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from django.db import models
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from django.shortcuts import get_object_or_404
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from django.test import TestCase
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from django.utils import six
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from rest_framework import generics, renderers, serializers, status
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from rest_framework.test import APIRequestFactory
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from tests.models import BasicModel, Comment, SlugBasedModel
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from tests.models import ForeignKeySource, ForeignKeyTarget
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factory = APIRequestFactory()
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class BasicSerializer(serializers.ModelSerializer):
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class Meta:
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model = BasicModel
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class ForeignKeySerializer(serializers.ModelSerializer):
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class Meta:
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model = ForeignKeySource
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class RootView(generics.ListCreateAPIView):
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"""
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Example description for OPTIONS.
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"""
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queryset = BasicModel.objects.all()
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serializer_class = BasicSerializer
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class InstanceView(generics.RetrieveUpdateDestroyAPIView):
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"""
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Example description for OPTIONS.
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"""
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queryset = BasicModel.objects.all()
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serializer_class = BasicSerializer
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def get_queryset(self):
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queryset = super(InstanceView, self).get_queryset()
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return queryset.exclude(text='filtered out')
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class FKInstanceView(generics.RetrieveUpdateDestroyAPIView):
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"""
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FK: example description for OPTIONS.
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"""
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queryset = ForeignKeySource.objects.all()
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serializer_class = ForeignKeySerializer
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class SlugSerializer(serializers.ModelSerializer):
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slug = serializers.Field() # read only
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class Meta:
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model = SlugBasedModel
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exclude = ('id',)
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class SlugBasedInstanceView(InstanceView):
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"""
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A model with a slug-field.
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"""
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queryset = SlugBasedModel.objects.all()
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serializer_class = SlugSerializer
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lookup_field = 'slug'
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class TestRootView(TestCase):
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def setUp(self):
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"""
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Create 3 BasicModel instances.
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"""
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items = ['foo', 'bar', 'baz']
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for item in items:
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BasicModel(text=item).save()
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self.objects = BasicModel.objects
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self.data = [
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{'id': obj.id, 'text': obj.text}
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for obj in self.objects.all()
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]
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self.view = RootView.as_view()
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def test_get_root_view(self):
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"""
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GET requests to ListCreateAPIView should return list of objects.
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"""
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request = factory.get('/')
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with self.assertNumQueries(1):
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response = self.view(request).render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, self.data)
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def test_post_root_view(self):
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"""
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POST requests to ListCreateAPIView should create a new object.
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"""
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data = {'text': 'foobar'}
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request = factory.post('/', data, format='json')
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with self.assertNumQueries(1):
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response = self.view(request).render()
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self.assertEqual(response.status_code, status.HTTP_201_CREATED)
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self.assertEqual(response.data, {'id': 4, 'text': 'foobar'})
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created = self.objects.get(id=4)
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self.assertEqual(created.text, 'foobar')
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def test_put_root_view(self):
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"""
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PUT requests to ListCreateAPIView should not be allowed
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"""
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data = {'text': 'foobar'}
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request = factory.put('/', data, format='json')
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with self.assertNumQueries(0):
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response = self.view(request).render()
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self.assertEqual(response.status_code, status.HTTP_405_METHOD_NOT_ALLOWED)
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self.assertEqual(response.data, {"detail": "Method 'PUT' not allowed."})
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def test_delete_root_view(self):
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"""
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DELETE requests to ListCreateAPIView should not be allowed
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"""
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request = factory.delete('/')
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with self.assertNumQueries(0):
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response = self.view(request).render()
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self.assertEqual(response.status_code, status.HTTP_405_METHOD_NOT_ALLOWED)
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self.assertEqual(response.data, {"detail": "Method 'DELETE' not allowed."})
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def test_options_root_view(self):
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"""
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OPTIONS requests to ListCreateAPIView should return metadata
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"""
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request = factory.options('/')
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with self.assertNumQueries(0):
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response = self.view(request).render()
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expected = {
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'parses': [
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'application/json',
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'application/x-www-form-urlencoded',
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'multipart/form-data'
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],
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'renders': [
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'application/json',
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'text/html'
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],
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'name': 'Root',
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'description': 'Example description for OPTIONS.',
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'actions': {
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'POST': {
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'text': {
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'max_length': 100,
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'read_only': False,
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'required': True,
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'type': 'string',
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"label": "Text comes here",
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"help_text": "Text description."
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},
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'id': {
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'read_only': True,
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'required': False,
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'type': 'integer',
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'label': 'ID',
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},
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}
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}
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}
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, expected)
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def test_post_cannot_set_id(self):
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"""
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POST requests to create a new object should not be able to set the id.
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"""
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data = {'id': 999, 'text': 'foobar'}
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request = factory.post('/', data, format='json')
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with self.assertNumQueries(1):
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response = self.view(request).render()
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self.assertEqual(response.status_code, status.HTTP_201_CREATED)
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self.assertEqual(response.data, {'id': 4, 'text': 'foobar'})
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created = self.objects.get(id=4)
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self.assertEqual(created.text, 'foobar')
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class TestInstanceView(TestCase):
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def setUp(self):
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"""
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Create 3 BasicModel intances.
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"""
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items = ['foo', 'bar', 'baz', 'filtered out']
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for item in items:
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BasicModel(text=item).save()
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self.objects = BasicModel.objects.exclude(text='filtered out')
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self.data = [
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{'id': obj.id, 'text': obj.text}
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for obj in self.objects.all()
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]
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self.view = InstanceView.as_view()
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self.slug_based_view = SlugBasedInstanceView.as_view()
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def test_get_instance_view(self):
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"""
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GET requests to RetrieveUpdateDestroyAPIView should return a single object.
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"""
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request = factory.get('/1')
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with self.assertNumQueries(1):
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response = self.view(request, pk=1).render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, self.data[0])
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def test_post_instance_view(self):
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"""
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POST requests to RetrieveUpdateDestroyAPIView should not be allowed
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"""
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data = {'text': 'foobar'}
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request = factory.post('/', data, format='json')
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with self.assertNumQueries(0):
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response = self.view(request).render()
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self.assertEqual(response.status_code, status.HTTP_405_METHOD_NOT_ALLOWED)
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self.assertEqual(response.data, {"detail": "Method 'POST' not allowed."})
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def test_put_instance_view(self):
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"""
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PUT requests to RetrieveUpdateDestroyAPIView should update an object.
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"""
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data = {'text': 'foobar'}
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request = factory.put('/1', data, format='json')
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with self.assertNumQueries(2):
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response = self.view(request, pk='1').render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, {'id': 1, 'text': 'foobar'})
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updated = self.objects.get(id=1)
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self.assertEqual(updated.text, 'foobar')
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def test_patch_instance_view(self):
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"""
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PATCH requests to RetrieveUpdateDestroyAPIView should update an object.
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"""
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data = {'text': 'foobar'}
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request = factory.patch('/1', data, format='json')
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with self.assertNumQueries(2):
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response = self.view(request, pk=1).render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, {'id': 1, 'text': 'foobar'})
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updated = self.objects.get(id=1)
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self.assertEqual(updated.text, 'foobar')
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def test_delete_instance_view(self):
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"""
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DELETE requests to RetrieveUpdateDestroyAPIView should delete an object.
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"""
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request = factory.delete('/1')
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with self.assertNumQueries(2):
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response = self.view(request, pk=1).render()
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self.assertEqual(response.status_code, status.HTTP_204_NO_CONTENT)
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self.assertEqual(response.content, six.b(''))
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ids = [obj.id for obj in self.objects.all()]
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self.assertEqual(ids, [2, 3])
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def test_options_instance_view(self):
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"""
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OPTIONS requests to RetrieveUpdateDestroyAPIView should return metadata
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"""
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request = factory.options('/1')
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with self.assertNumQueries(1):
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response = self.view(request, pk=1).render()
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expected = {
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'parses': [
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'application/json',
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'application/x-www-form-urlencoded',
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'multipart/form-data'
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],
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'renders': [
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'application/json',
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'text/html'
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],
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'name': 'Instance',
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'description': 'Example description for OPTIONS.',
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'actions': {
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'PUT': {
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'text': {
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'max_length': 100,
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'read_only': False,
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'required': True,
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'type': 'string',
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'label': 'Text comes here',
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'help_text': 'Text description.'
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},
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'id': {
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'read_only': True,
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'required': False,
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'type': 'integer',
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'label': 'ID',
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},
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}
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}
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}
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, expected)
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def test_options_before_instance_create(self):
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"""
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OPTIONS requests to RetrieveUpdateDestroyAPIView should return metadata
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before the instance has been created
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"""
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request = factory.options('/999')
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with self.assertNumQueries(1):
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response = self.view(request, pk=999).render()
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expected = {
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'parses': [
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'application/json',
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'application/x-www-form-urlencoded',
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'multipart/form-data'
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],
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'renders': [
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'application/json',
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'text/html'
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],
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'name': 'Instance',
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'description': 'Example description for OPTIONS.',
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'actions': {
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'PUT': {
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'text': {
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'max_length': 100,
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'read_only': False,
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'required': True,
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'type': 'string',
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'label': 'Text comes here',
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'help_text': 'Text description.'
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},
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'id': {
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'read_only': True,
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'required': False,
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'type': 'integer',
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'label': 'ID',
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},
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}
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}
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}
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, expected)
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def test_get_instance_view_incorrect_arg(self):
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"""
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GET requests with an incorrect pk type, should raise 404, not 500.
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Regression test for #890.
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"""
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request = factory.get('/a')
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with self.assertNumQueries(0):
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response = self.view(request, pk='a').render()
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self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
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def test_put_cannot_set_id(self):
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"""
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PUT requests to create a new object should not be able to set the id.
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"""
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data = {'id': 999, 'text': 'foobar'}
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request = factory.put('/1', data, format='json')
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with self.assertNumQueries(2):
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response = self.view(request, pk=1).render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, {'id': 1, 'text': 'foobar'})
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updated = self.objects.get(id=1)
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self.assertEqual(updated.text, 'foobar')
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def test_put_to_deleted_instance(self):
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"""
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PUT requests to RetrieveUpdateDestroyAPIView should create an object
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if it does not currently exist.
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"""
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self.objects.get(id=1).delete()
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data = {'text': 'foobar'}
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request = factory.put('/1', data, format='json')
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with self.assertNumQueries(3):
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response = self.view(request, pk=1).render()
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self.assertEqual(response.status_code, status.HTTP_201_CREATED)
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self.assertEqual(response.data, {'id': 1, 'text': 'foobar'})
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updated = self.objects.get(id=1)
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self.assertEqual(updated.text, 'foobar')
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def test_put_to_filtered_out_instance(self):
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"""
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PUT requests to an URL of instance which is filtered out should not be
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able to create new objects.
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"""
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data = {'text': 'foo'}
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filtered_out_pk = BasicModel.objects.filter(text='filtered out')[0].pk
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request = factory.put('/{0}'.format(filtered_out_pk), data, format='json')
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response = self.view(request, pk=filtered_out_pk).render()
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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def test_put_as_create_on_id_based_url(self):
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"""
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PUT requests to RetrieveUpdateDestroyAPIView should create an object
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at the requested url if it doesn't exist.
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"""
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data = {'text': 'foobar'}
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# pk fields can not be created on demand, only the database can set the pk for a new object
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request = factory.put('/5', data, format='json')
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with self.assertNumQueries(3):
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response = self.view(request, pk=5).render()
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self.assertEqual(response.status_code, status.HTTP_201_CREATED)
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new_obj = self.objects.get(pk=5)
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self.assertEqual(new_obj.text, 'foobar')
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def test_put_as_create_on_slug_based_url(self):
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"""
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PUT requests to RetrieveUpdateDestroyAPIView should create an object
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at the requested url if possible, else return HTTP_403_FORBIDDEN error-response.
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"""
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data = {'text': 'foobar'}
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request = factory.put('/test_slug', data, format='json')
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with self.assertNumQueries(2):
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response = self.slug_based_view(request, slug='test_slug').render()
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self.assertEqual(response.status_code, status.HTTP_201_CREATED)
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self.assertEqual(response.data, {'slug': 'test_slug', 'text': 'foobar'})
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new_obj = SlugBasedModel.objects.get(slug='test_slug')
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self.assertEqual(new_obj.text, 'foobar')
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def test_patch_cannot_create_an_object(self):
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"""
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PATCH requests should not be able to create objects.
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"""
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data = {'text': 'foobar'}
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request = factory.patch('/999', data, format='json')
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with self.assertNumQueries(1):
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response = self.view(request, pk=999).render()
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self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
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self.assertFalse(self.objects.filter(id=999).exists())
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class TestFKInstanceView(TestCase):
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def setUp(self):
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"""
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Create 3 BasicModel instances.
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"""
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items = ['foo', 'bar', 'baz']
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for item in items:
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t = ForeignKeyTarget(name=item)
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t.save()
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ForeignKeySource(name='source_' + item, target=t).save()
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self.objects = ForeignKeySource.objects
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self.data = [
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{'id': obj.id, 'name': obj.name}
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for obj in self.objects.all()
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]
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self.view = FKInstanceView.as_view()
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def test_options_root_view(self):
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"""
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OPTIONS requests to ListCreateAPIView should return metadata
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"""
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request = factory.options('/999')
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with self.assertNumQueries(1):
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response = self.view(request, pk=999).render()
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expected = {
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'name': 'Fk Instance',
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'description': 'FK: example description for OPTIONS.',
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'renders': [
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'application/json',
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'text/html'
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],
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'parses': [
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'application/json',
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'application/x-www-form-urlencoded',
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'multipart/form-data'
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],
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'actions': {
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'PUT': {
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'id': {
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'type': 'integer',
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'required': False,
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'read_only': True,
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'label': 'ID'
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},
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'name': {
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'type': 'string',
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'required': True,
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'read_only': False,
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'label': 'name',
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'max_length': 100
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},
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'target': {
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'type': 'field',
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'required': True,
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'read_only': False,
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'label': 'Target',
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'help_text': 'Target'
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}
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}
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}
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}
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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self.assertEqual(response.data, expected)
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class TestOverriddenGetObject(TestCase):
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"""
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Test cases for a RetrieveUpdateDestroyAPIView that does NOT use the
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queryset/model mechanism but instead overrides get_object()
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"""
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def setUp(self):
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"""
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Create 3 BasicModel intances.
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"""
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items = ['foo', 'bar', 'baz']
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for item in items:
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BasicModel(text=item).save()
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self.objects = BasicModel.objects
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self.data = [
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{'id': obj.id, 'text': obj.text}
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for obj in self.objects.all()
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]
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class OverriddenGetObjectView(generics.RetrieveUpdateDestroyAPIView):
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"""
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Example detail view for override of get_object().
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"""
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serializer_class = BasicSerializer
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def get_object(self):
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pk = int(self.kwargs['pk'])
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return get_object_or_404(BasicModel.objects.all(), id=pk)
|
|
|
|
self.view = OverriddenGetObjectView.as_view()
|
|
|
|
def test_overridden_get_object_view(self):
|
|
"""
|
|
GET requests to RetrieveUpdateDestroyAPIView should return a single object.
|
|
"""
|
|
request = factory.get('/1')
|
|
with self.assertNumQueries(1):
|
|
response = self.view(request, pk=1).render()
|
|
self.assertEqual(response.status_code, status.HTTP_200_OK)
|
|
self.assertEqual(response.data, self.data[0])
|
|
|
|
|
|
# Regression test for #285
|
|
|
|
class CommentSerializer(serializers.ModelSerializer):
|
|
class Meta:
|
|
model = Comment
|
|
exclude = ('created',)
|
|
|
|
|
|
class CommentView(generics.ListCreateAPIView):
|
|
serializer_class = CommentSerializer
|
|
model = Comment
|
|
|
|
|
|
class TestCreateModelWithAutoNowAddField(TestCase):
|
|
def setUp(self):
|
|
self.objects = Comment.objects
|
|
self.view = CommentView.as_view()
|
|
|
|
def test_create_model_with_auto_now_add_field(self):
|
|
"""
|
|
Regression test for #285
|
|
|
|
https://github.com/tomchristie/django-rest-framework/issues/285
|
|
"""
|
|
data = {'email': 'foobar@example.com', 'content': 'foobar'}
|
|
request = factory.post('/', data, format='json')
|
|
response = self.view(request).render()
|
|
self.assertEqual(response.status_code, status.HTTP_201_CREATED)
|
|
created = self.objects.get(id=1)
|
|
self.assertEqual(created.content, 'foobar')
|
|
|
|
|
|
# Test for particularly ugly regression with m2m in browsable API
|
|
class ClassB(models.Model):
|
|
name = models.CharField(max_length=255)
|
|
|
|
|
|
class ClassA(models.Model):
|
|
name = models.CharField(max_length=255)
|
|
childs = models.ManyToManyField(ClassB, blank=True, null=True)
|
|
|
|
|
|
class ClassASerializer(serializers.ModelSerializer):
|
|
childs = serializers.PrimaryKeyRelatedField(many=True, source='childs')
|
|
|
|
class Meta:
|
|
model = ClassA
|
|
|
|
|
|
class ExampleView(generics.ListCreateAPIView):
|
|
serializer_class = ClassASerializer
|
|
queryset = ClassA.objects.all()
|
|
|
|
|
|
class TestM2MBrowseableAPI(TestCase):
|
|
def test_m2m_in_browseable_api(self):
|
|
"""
|
|
Test for particularly ugly regression with m2m in browsable API
|
|
"""
|
|
request = factory.get('/', HTTP_ACCEPT='text/html')
|
|
view = ExampleView().as_view()
|
|
response = view(request).render()
|
|
self.assertEqual(response.status_code, status.HTTP_200_OK)
|
|
|
|
|
|
class InclusiveFilterBackend(object):
|
|
def filter_queryset(self, request, queryset, view):
|
|
return queryset.filter(text='foo')
|
|
|
|
|
|
class ExclusiveFilterBackend(object):
|
|
def filter_queryset(self, request, queryset, view):
|
|
return queryset.filter(text='other')
|
|
|
|
|
|
class TwoFieldModel(models.Model):
|
|
field_a = models.CharField(max_length=100)
|
|
field_b = models.CharField(max_length=100)
|
|
|
|
|
|
class DynamicSerializerView(generics.ListCreateAPIView):
|
|
queryset = TwoFieldModel.objects.all()
|
|
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',)
|
|
else:
|
|
class DynamicSerializer(serializers.ModelSerializer):
|
|
class Meta:
|
|
model = TwoFieldModel
|
|
return DynamicSerializer
|
|
|
|
|
|
class TestFilterBackendAppliedToViews(TestCase):
|
|
|
|
def setUp(self):
|
|
"""
|
|
Create 3 BasicModel instances to filter on.
|
|
"""
|
|
items = ['foo', 'bar', 'baz']
|
|
for item in items:
|
|
BasicModel(text=item).save()
|
|
self.objects = BasicModel.objects
|
|
self.data = [
|
|
{'id': obj.id, 'text': obj.text}
|
|
for obj in self.objects.all()
|
|
]
|
|
|
|
def test_get_root_view_filters_by_name_with_filter_backend(self):
|
|
"""
|
|
GET requests to ListCreateAPIView should return filtered list.
|
|
"""
|
|
root_view = RootView.as_view(filter_backends=(InclusiveFilterBackend,))
|
|
request = factory.get('/')
|
|
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'}])
|
|
|
|
def test_get_root_view_filters_out_all_models_with_exclusive_filter_backend(self):
|
|
"""
|
|
GET requests to ListCreateAPIView should return empty list when all models are filtered out.
|
|
"""
|
|
root_view = RootView.as_view(filter_backends=(ExclusiveFilterBackend,))
|
|
request = factory.get('/')
|
|
response = root_view(request).render()
|
|
self.assertEqual(response.status_code, status.HTTP_200_OK)
|
|
self.assertEqual(response.data, [])
|
|
|
|
def test_get_instance_view_filters_out_name_with_filter_backend(self):
|
|
"""
|
|
GET requests to RetrieveUpdateDestroyAPIView should raise 404 when model filtered out.
|
|
"""
|
|
instance_view = InstanceView.as_view(filter_backends=(ExclusiveFilterBackend,))
|
|
request = factory.get('/1')
|
|
response = instance_view(request, pk=1).render()
|
|
self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
|
|
self.assertEqual(response.data, {'detail': 'Not found'})
|
|
|
|
def test_get_instance_view_will_return_single_object_when_filter_does_not_exclude_it(self):
|
|
"""
|
|
GET requests to RetrieveUpdateDestroyAPIView should return a single object when not excluded
|
|
"""
|
|
instance_view = InstanceView.as_view(filter_backends=(InclusiveFilterBackend,))
|
|
request = factory.get('/1')
|
|
response = instance_view(request, pk=1).render()
|
|
self.assertEqual(response.status_code, status.HTTP_200_OK)
|
|
self.assertEqual(response.data, {'id': 1, 'text': 'foo'})
|
|
|
|
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')
|