mirror of
https://github.com/encode/django-rest-framework.git
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488 lines
17 KiB
Python
488 lines
17 KiB
Python
from collections import namedtuple
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import pytest
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from django.conf.urls import include, url
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from django.core.exceptions import ImproperlyConfigured
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from django.db import models
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from django.test import TestCase, override_settings
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from django.urls import resolve, reverse
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from rest_framework import permissions, serializers, viewsets
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from rest_framework.compat import get_regex_pattern
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from rest_framework.decorators import action
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from rest_framework.response import Response
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from rest_framework.routers import DefaultRouter, SimpleRouter
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from rest_framework.test import APIRequestFactory, URLPatternsTestCase
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from rest_framework.utils import json
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factory = APIRequestFactory()
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class RouterTestModel(models.Model):
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uuid = models.CharField(max_length=20)
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text = models.CharField(max_length=200)
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class NoteSerializer(serializers.HyperlinkedModelSerializer):
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url = serializers.HyperlinkedIdentityField(view_name='routertestmodel-detail', lookup_field='uuid')
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class Meta:
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model = RouterTestModel
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fields = ('url', 'uuid', 'text')
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class NoteViewSet(viewsets.ModelViewSet):
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queryset = RouterTestModel.objects.all()
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serializer_class = NoteSerializer
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lookup_field = 'uuid'
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class KWargedNoteViewSet(viewsets.ModelViewSet):
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queryset = RouterTestModel.objects.all()
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serializer_class = NoteSerializer
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lookup_field = 'text__contains'
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lookup_url_kwarg = 'text'
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class MockViewSet(viewsets.ModelViewSet):
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queryset = None
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serializer_class = None
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class EmptyPrefixSerializer(serializers.HyperlinkedModelSerializer):
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class Meta:
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model = RouterTestModel
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fields = ('uuid', 'text')
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class EmptyPrefixViewSet(viewsets.ModelViewSet):
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queryset = [RouterTestModel(id=1, uuid='111', text='First'), RouterTestModel(id=2, uuid='222', text='Second')]
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serializer_class = EmptyPrefixSerializer
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def get_object(self, *args, **kwargs):
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index = int(self.kwargs['pk']) - 1
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return self.queryset[index]
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class RegexUrlPathViewSet(viewsets.ViewSet):
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@action(detail=False, url_path='list/(?P<kwarg>[0-9]{4})')
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def regex_url_path_list(self, request, *args, **kwargs):
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kwarg = self.kwargs.get('kwarg', '')
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return Response({'kwarg': kwarg})
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@action(detail=True, url_path='detail/(?P<kwarg>[0-9]{4})')
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def regex_url_path_detail(self, request, *args, **kwargs):
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pk = self.kwargs.get('pk', '')
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kwarg = self.kwargs.get('kwarg', '')
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return Response({'pk': pk, 'kwarg': kwarg})
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notes_router = SimpleRouter()
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notes_router.register(r'notes', NoteViewSet)
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kwarged_notes_router = SimpleRouter()
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kwarged_notes_router.register(r'notes', KWargedNoteViewSet)
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namespaced_router = DefaultRouter()
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namespaced_router.register(r'example', MockViewSet, basename='example')
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empty_prefix_router = SimpleRouter()
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empty_prefix_router.register(r'', EmptyPrefixViewSet, basename='empty_prefix')
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regex_url_path_router = SimpleRouter()
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regex_url_path_router.register(r'', RegexUrlPathViewSet, basename='regex')
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class BasicViewSet(viewsets.ViewSet):
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def list(self, request, *args, **kwargs):
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return Response({'method': 'list'})
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@action(methods=['post'], detail=True)
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def action1(self, request, *args, **kwargs):
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return Response({'method': 'action1'})
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@action(methods=['post', 'delete'], detail=True)
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def action2(self, request, *args, **kwargs):
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return Response({'method': 'action2'})
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@action(methods=['post'], detail=True)
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def action3(self, request, pk, *args, **kwargs):
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return Response({'post': pk})
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@action3.mapping.delete
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def action3_delete(self, request, pk, *args, **kwargs):
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return Response({'delete': pk})
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class TestSimpleRouter(URLPatternsTestCase, TestCase):
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router = SimpleRouter()
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router.register('basics', BasicViewSet, basename='basic')
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urlpatterns = [
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url(r'^api/', include(router.urls)),
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]
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def setUp(self):
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self.router = SimpleRouter()
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def test_action_routes(self):
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# Get action routes (first two are list/detail)
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routes = self.router.get_routes(BasicViewSet)[2:]
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assert routes[0].url == '^{prefix}/{lookup}/action1{trailing_slash}$'
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assert routes[0].mapping == {
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'post': 'action1',
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}
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assert routes[1].url == '^{prefix}/{lookup}/action2{trailing_slash}$'
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assert routes[1].mapping == {
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'post': 'action2',
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'delete': 'action2',
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}
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assert routes[2].url == '^{prefix}/{lookup}/action3{trailing_slash}$'
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assert routes[2].mapping == {
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'post': 'action3',
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'delete': 'action3_delete',
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}
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def test_multiple_action_handlers(self):
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# Standard action
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response = self.client.post(reverse('basic-action3', args=[1]))
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assert response.data == {'post': '1'}
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# Additional handler registered with MethodMapper
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response = self.client.delete(reverse('basic-action3', args=[1]))
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assert response.data == {'delete': '1'}
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def test_register_after_accessing_urls(self):
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self.router.register(r'notes', NoteViewSet)
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assert len(self.router.urls) == 2 # list and detail
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self.router.register(r'notes_bis', NoteViewSet)
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assert len(self.router.urls) == 4
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class TestRootView(URLPatternsTestCase, TestCase):
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urlpatterns = [
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url(r'^non-namespaced/', include(namespaced_router.urls)),
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url(r'^namespaced/', include((namespaced_router.urls, 'namespaced'), namespace='namespaced')),
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]
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def test_retrieve_namespaced_root(self):
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response = self.client.get('/namespaced/')
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assert response.data == {"example": "http://testserver/namespaced/example/"}
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def test_retrieve_non_namespaced_root(self):
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response = self.client.get('/non-namespaced/')
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assert response.data == {"example": "http://testserver/non-namespaced/example/"}
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class TestCustomLookupFields(URLPatternsTestCase, TestCase):
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"""
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Ensure that custom lookup fields are correctly routed.
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"""
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urlpatterns = [
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url(r'^example/', include(notes_router.urls)),
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url(r'^example2/', include(kwarged_notes_router.urls)),
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]
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def setUp(self):
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RouterTestModel.objects.create(uuid='123', text='foo bar')
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RouterTestModel.objects.create(uuid='a b', text='baz qux')
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def test_custom_lookup_field_route(self):
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detail_route = notes_router.urls[-1]
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detail_url_pattern = get_regex_pattern(detail_route)
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assert '<uuid>' in detail_url_pattern
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def test_retrieve_lookup_field_list_view(self):
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response = self.client.get('/example/notes/')
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assert response.data == [
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{"url": "http://testserver/example/notes/123/", "uuid": "123", "text": "foo bar"},
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{"url": "http://testserver/example/notes/a%20b/", "uuid": "a b", "text": "baz qux"},
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]
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def test_retrieve_lookup_field_detail_view(self):
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response = self.client.get('/example/notes/123/')
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assert response.data == {"url": "http://testserver/example/notes/123/", "uuid": "123", "text": "foo bar"}
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def test_retrieve_lookup_field_url_encoded_detail_view_(self):
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response = self.client.get('/example/notes/a%20b/')
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assert response.data == {"url": "http://testserver/example/notes/a%20b/", "uuid": "a b", "text": "baz qux"}
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class TestLookupValueRegex(TestCase):
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"""
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Ensure the router honors lookup_value_regex when applied
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to the viewset.
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"""
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def setUp(self):
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class NoteViewSet(viewsets.ModelViewSet):
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queryset = RouterTestModel.objects.all()
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lookup_field = 'uuid'
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lookup_value_regex = '[0-9a-f]{32}'
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self.router = SimpleRouter()
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self.router.register(r'notes', NoteViewSet)
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self.urls = self.router.urls
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def test_urls_limited_by_lookup_value_regex(self):
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expected = ['^notes/$', '^notes/(?P<uuid>[0-9a-f]{32})/$']
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for idx in range(len(expected)):
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assert expected[idx] == get_regex_pattern(self.urls[idx])
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@override_settings(ROOT_URLCONF='tests.test_routers')
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class TestLookupUrlKwargs(URLPatternsTestCase, TestCase):
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"""
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Ensure the router honors lookup_url_kwarg.
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Setup a deep lookup_field, but map it to a simple URL kwarg.
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"""
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urlpatterns = [
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url(r'^example/', include(notes_router.urls)),
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url(r'^example2/', include(kwarged_notes_router.urls)),
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]
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def setUp(self):
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RouterTestModel.objects.create(uuid='123', text='foo bar')
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def test_custom_lookup_url_kwarg_route(self):
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detail_route = kwarged_notes_router.urls[-1]
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detail_url_pattern = get_regex_pattern(detail_route)
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assert '^notes/(?P<text>' in detail_url_pattern
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def test_retrieve_lookup_url_kwarg_detail_view(self):
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response = self.client.get('/example2/notes/fo/')
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assert response.data == {"url": "http://testserver/example/notes/123/", "uuid": "123", "text": "foo bar"}
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def test_retrieve_lookup_url_encoded_kwarg_detail_view(self):
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response = self.client.get('/example2/notes/foo%20bar/')
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assert response.data == {"url": "http://testserver/example/notes/123/", "uuid": "123", "text": "foo bar"}
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class TestTrailingSlashIncluded(TestCase):
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def setUp(self):
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class NoteViewSet(viewsets.ModelViewSet):
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queryset = RouterTestModel.objects.all()
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self.router = SimpleRouter()
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self.router.register(r'notes', NoteViewSet)
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self.urls = self.router.urls
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def test_urls_have_trailing_slash_by_default(self):
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expected = ['^notes/$', '^notes/(?P<pk>[^/.]+)/$']
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for idx in range(len(expected)):
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assert expected[idx] == get_regex_pattern(self.urls[idx])
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class TestTrailingSlashRemoved(TestCase):
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def setUp(self):
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class NoteViewSet(viewsets.ModelViewSet):
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queryset = RouterTestModel.objects.all()
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self.router = SimpleRouter(trailing_slash=False)
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self.router.register(r'notes', NoteViewSet)
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self.urls = self.router.urls
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def test_urls_can_have_trailing_slash_removed(self):
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expected = ['^notes$', '^notes/(?P<pk>[^/.]+)$']
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for idx in range(len(expected)):
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assert expected[idx] == get_regex_pattern(self.urls[idx])
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class TestNameableRoot(TestCase):
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def setUp(self):
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class NoteViewSet(viewsets.ModelViewSet):
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queryset = RouterTestModel.objects.all()
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self.router = DefaultRouter()
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self.router.root_view_name = 'nameable-root'
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self.router.register(r'notes', NoteViewSet)
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self.urls = self.router.urls
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def test_router_has_custom_name(self):
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expected = 'nameable-root'
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assert expected == self.urls[-1].name
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class TestActionKeywordArgs(TestCase):
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"""
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Ensure keyword arguments passed in the `@action` decorator
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are properly handled. Refs #940.
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"""
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def setUp(self):
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class TestViewSet(viewsets.ModelViewSet):
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permission_classes = []
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@action(methods=['post'], detail=True, permission_classes=[permissions.AllowAny])
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def custom(self, request, *args, **kwargs):
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return Response({
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'permission_classes': self.permission_classes
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})
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self.router = SimpleRouter()
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self.router.register(r'test', TestViewSet, basename='test')
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self.view = self.router.urls[-1].callback
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def test_action_kwargs(self):
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request = factory.post('/test/0/custom/')
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response = self.view(request)
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assert response.data == {'permission_classes': [permissions.AllowAny]}
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class TestActionAppliedToExistingRoute(TestCase):
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"""
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Ensure `@action` decorator raises an except when applied
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to an existing route
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"""
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def test_exception_raised_when_action_applied_to_existing_route(self):
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class TestViewSet(viewsets.ModelViewSet):
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@action(methods=['post'], detail=True)
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def retrieve(self, request, *args, **kwargs):
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return Response({
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'hello': 'world'
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})
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self.router = SimpleRouter()
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self.router.register(r'test', TestViewSet, basename='test')
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with pytest.raises(ImproperlyConfigured):
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self.router.urls
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class DynamicListAndDetailViewSet(viewsets.ViewSet):
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def list(self, request, *args, **kwargs):
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return Response({'method': 'list'})
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@action(methods=['post'], detail=False)
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def list_route_post(self, request, *args, **kwargs):
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return Response({'method': 'action1'})
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@action(methods=['post'], detail=True)
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def detail_route_post(self, request, *args, **kwargs):
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return Response({'method': 'action2'})
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@action(detail=False)
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def list_route_get(self, request, *args, **kwargs):
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return Response({'method': 'link1'})
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@action(detail=True)
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def detail_route_get(self, request, *args, **kwargs):
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return Response({'method': 'link2'})
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@action(detail=False, url_path="list_custom-route")
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def list_custom_route_get(self, request, *args, **kwargs):
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return Response({'method': 'link1'})
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@action(detail=True, url_path="detail_custom-route")
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def detail_custom_route_get(self, request, *args, **kwargs):
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return Response({'method': 'link2'})
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class SubDynamicListAndDetailViewSet(DynamicListAndDetailViewSet):
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pass
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class TestDynamicListAndDetailRouter(TestCase):
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def setUp(self):
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self.router = SimpleRouter()
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def _test_list_and_detail_route_decorators(self, viewset):
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routes = self.router.get_routes(viewset)
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decorator_routes = [r for r in routes if not (r.name.endswith('-list') or r.name.endswith('-detail'))]
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MethodNamesMap = namedtuple('MethodNamesMap', 'method_name url_path')
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# Make sure all these endpoints exist and none have been clobbered
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for i, endpoint in enumerate([MethodNamesMap('list_custom_route_get', 'list_custom-route'),
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MethodNamesMap('list_route_get', 'list_route_get'),
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MethodNamesMap('list_route_post', 'list_route_post'),
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MethodNamesMap('detail_custom_route_get', 'detail_custom-route'),
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MethodNamesMap('detail_route_get', 'detail_route_get'),
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MethodNamesMap('detail_route_post', 'detail_route_post')
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]):
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route = decorator_routes[i]
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# check url listing
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method_name = endpoint.method_name
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url_path = endpoint.url_path
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if method_name.startswith('list_'):
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assert route.url == '^{{prefix}}/{0}{{trailing_slash}}$'.format(url_path)
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else:
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assert route.url == '^{{prefix}}/{{lookup}}/{0}{{trailing_slash}}$'.format(url_path)
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# check method to function mapping
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if method_name.endswith('_post'):
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method_map = 'post'
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else:
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method_map = 'get'
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assert route.mapping[method_map] == method_name
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def test_list_and_detail_route_decorators(self):
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self._test_list_and_detail_route_decorators(DynamicListAndDetailViewSet)
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def test_inherited_list_and_detail_route_decorators(self):
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self._test_list_and_detail_route_decorators(SubDynamicListAndDetailViewSet)
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class TestEmptyPrefix(URLPatternsTestCase, TestCase):
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urlpatterns = [
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url(r'^empty-prefix/', include(empty_prefix_router.urls)),
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]
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def test_empty_prefix_list(self):
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response = self.client.get('/empty-prefix/')
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assert response.status_code == 200
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assert json.loads(response.content.decode()) == [{'uuid': '111', 'text': 'First'},
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{'uuid': '222', 'text': 'Second'}]
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def test_empty_prefix_detail(self):
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response = self.client.get('/empty-prefix/1/')
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assert response.status_code == 200
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assert json.loads(response.content.decode()) == {'uuid': '111', 'text': 'First'}
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class TestRegexUrlPath(URLPatternsTestCase, TestCase):
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urlpatterns = [
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url(r'^regex/', include(regex_url_path_router.urls)),
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]
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def test_regex_url_path_list(self):
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kwarg = '1234'
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response = self.client.get('/regex/list/{}/'.format(kwarg))
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assert response.status_code == 200
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assert json.loads(response.content.decode()) == {'kwarg': kwarg}
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def test_regex_url_path_detail(self):
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pk = '1'
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kwarg = '1234'
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response = self.client.get('/regex/{}/detail/{}/'.format(pk, kwarg))
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assert response.status_code == 200
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assert json.loads(response.content.decode()) == {'pk': pk, 'kwarg': kwarg}
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class TestViewInitkwargs(URLPatternsTestCase, TestCase):
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urlpatterns = [
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url(r'^example/', include(notes_router.urls)),
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]
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def test_suffix(self):
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match = resolve('/example/notes/')
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initkwargs = match.func.initkwargs
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assert initkwargs['suffix'] == 'List'
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def test_detail(self):
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match = resolve('/example/notes/')
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initkwargs = match.func.initkwargs
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assert not initkwargs['detail']
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def test_basename(self):
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match = resolve('/example/notes/')
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initkwargs = match.func.initkwargs
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assert initkwargs['basename'] == 'routertestmodel'
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