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from django.test import TestCase, override_settings
from django.urls import include, path, re_path
from rest_framework import generics, routers, serializers, status, viewsets
from rest_framework.parsers import JSONParser
from rest_framework.renderers import (
BaseRenderer, BrowsableAPIRenderer, JSONRenderer
)
from rest_framework.response import Response
from rest_framework.views import APIView
from tests.models import BasicModel
# Serializer used to test BasicModel
class BasicModelSerializer(serializers.ModelSerializer):
class Meta:
model = BasicModel
fields = '__all__'
class MockPickleRenderer(BaseRenderer):
media_type = 'application/pickle'
class MockJsonRenderer(BaseRenderer):
media_type = 'application/json'
class MockTextMediaRenderer(BaseRenderer):
media_type = 'text/html'
DUMMYSTATUS = status.HTTP_200_OK
DUMMYCONTENT = 'dummycontent'
def RENDERER_A_SERIALIZER(x):
return ('Renderer A: %s' % x).encode('ascii')
def RENDERER_B_SERIALIZER(x):
return ('Renderer B: %s' % x).encode('ascii')
class RendererA(BaseRenderer):
media_type = 'mock/renderera'
format = "formata"
def render(self, data, media_type=None, renderer_context=None):
return RENDERER_A_SERIALIZER(data)
class RendererB(BaseRenderer):
media_type = 'mock/rendererb'
format = "formatb"
def render(self, data, media_type=None, renderer_context=None):
return RENDERER_B_SERIALIZER(data)
class RendererC(RendererB):
media_type = 'mock/rendererc'
format = 'formatc'
charset = "rendererc"
class MockView(APIView):
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 JSONView(APIView):
parser_classes = (JSONParser,)
def post(self, request, **kwargs):
assert request.data
return Response(DUMMYCONTENT)
class HTMLView(APIView):
renderer_classes = (BrowsableAPIRenderer, )
def get(self, request, **kwargs):
return Response('text')
class HTMLView1(APIView):
renderer_classes = (BrowsableAPIRenderer, JSONRenderer)
def get(self, request, **kwargs):
return Response('text')
class HTMLNewModelViewSet(viewsets.ModelViewSet):
serializer_class = BasicModelSerializer
queryset = BasicModel.objects.all()
class HTMLNewModelView(generics.ListCreateAPIView):
renderer_classes = (BrowsableAPIRenderer,)
permission_classes = []
serializer_class = BasicModelSerializer
queryset = BasicModel.objects.all()
new_model_viewset_router = routers.DefaultRouter()
new_model_viewset_router.register(r'', HTMLNewModelViewSet)
urlpatterns = [
path('setbyview', MockViewSettingContentType.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
re_path(r'^.*\.(?P<format>.+)$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
path('', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
path('html', HTMLView.as_view()),
path('json', JSONView.as_view()),
path('html1', HTMLView1.as_view()),
path('html_new_model', HTMLNewModelView.as_view()),
path('html_new_model_viewset', include(new_model_viewset_router.urls)),
path('restframework', include('rest_framework.urls', namespace='rest_framework'))
]
# TODO: Clean tests bellow - remove duplicates with above, better unit testing, ...
@override_settings(ROOT_URLCONF='tests.test_response')
class RendererIntegrationTests(TestCase):
"""
End-to-end testing of renderers using an ResponseMixin on a generic view.
"""
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 + '; charset=utf-8')
self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
self.assertEqual(resp.status_code, DUMMYSTATUS)
def test_head_method_serializes_no_content(self):
"""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 + '; charset=utf-8')
self.assertEqual(resp.content, 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 + '; charset=utf-8')
self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
self.assertEqual(resp.status_code, DUMMYSTATUS)
def test_specified_renderer_serializes_content_default_case(self):
"""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 + '; charset=utf-8')
self.assertEqual(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT))
self.assertEqual(resp.status_code, DUMMYSTATUS)
def test_specified_renderer_serializes_content_non_default_case(self):
"""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 + '; charset=utf-8')
self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
self.assertEqual(resp.status_code, DUMMYSTATUS)
def test_specified_renderer_serializes_content_on_format_query(self):
"""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 + '; charset=utf-8')
self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
self.assertEqual(resp.status_code, DUMMYSTATUS)
def test_specified_renderer_serializes_content_on_format_kwargs(self):
"""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 + '; charset=utf-8')
self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
self.assertEqual(resp.status_code, DUMMYSTATUS)
def test_specified_renderer_is_used_on_format_query_with_matching_accept(self):
"""If both a 'format' query and a matching Accept header specified,
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 + '; charset=utf-8')
self.assertEqual(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT))
self.assertEqual(resp.status_code, DUMMYSTATUS)
@override_settings(ROOT_URLCONF='tests.test_response')
class UnsupportedMediaTypeTests(TestCase):
def test_should_allow_posting_json(self):
response = self.client.post('/json', data='{"test": 123}', content_type='application/json')
self.assertEqual(response.status_code, 200)
def test_should_not_allow_posting_xml(self):
response = self.client.post('/json', data='<test>123</test>', content_type='application/xml')
self.assertEqual(response.status_code, 415)
def test_should_not_allow_posting_a_form(self):
response = self.client.post('/json', data={'test': 123})
self.assertEqual(response.status_code, 415)
@override_settings(ROOT_URLCONF='tests.test_response')
class Issue122Tests(TestCase):
"""
Tests that covers #122.
"""
def test_only_html_renderer(self):
"""
Test if no infinite recursion occurs.
"""
self.client.get('/html')
def test_html_renderer_is_first(self):
"""
Test if no infinite recursion occurs.
"""
self.client.get('/html1')
@override_settings(ROOT_URLCONF='tests.test_response')
class Issue467Tests(TestCase):
"""
Tests for #467
"""
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.')
@override_settings(ROOT_URLCONF='tests.test_response')
class Issue807Tests(TestCase):
"""
Covers #807
"""
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 = "{}; charset={}".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 = "{}; charset={}".format(RendererC.media_type, RendererC.charset)
self.assertEqual(expected, resp['Content-Type'])
def test_content_type_set_explicitly_on_response(self):
"""
The content type may be set explicitly on the response.
"""
headers = {"HTTP_ACCEPT": RendererC.media_type}
resp = self.client.get('/setbyview', **headers)
self.assertEqual('setbyview', resp['Content-Type'])
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.')
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