mirror of
https://github.com/encode/django-rest-framework.git
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8b52dc09ee
This allows views to distinguish missing payload from empty payload. Related: #3647, #4566
330 lines
12 KiB
Python
330 lines
12 KiB
Python
from io import BytesIO
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from django.contrib.auth.models import User
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from django.shortcuts import redirect
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from django.test import TestCase, override_settings
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from django.urls import path
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from rest_framework import fields, serializers
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from rest_framework.decorators import api_view
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from rest_framework.response import Response
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from rest_framework.test import (
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APIClient, APIRequestFactory, URLPatternsTestCase, force_authenticate
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)
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@api_view(['GET', 'POST'])
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def view(request):
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return Response({
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'auth': request.META.get('HTTP_AUTHORIZATION', b''),
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'user': request.user.username
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})
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@api_view(['GET', 'POST'])
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def session_view(request):
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active_session = request.session.get('active_session', False)
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request.session['active_session'] = True
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return Response({
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'active_session': active_session
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})
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@api_view(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
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def redirect_view(request):
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return redirect('/view/')
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class BasicSerializer(serializers.Serializer):
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flag = fields.BooleanField(default=lambda: True)
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@api_view(['POST'])
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def post_view(request):
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serializer = BasicSerializer(data=request.data)
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serializer.allow_null = ('allow_null' in request.query_params)
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serializer.is_valid(raise_exception=True)
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return Response(serializer.validated_data)
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urlpatterns = [
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path('view/', view),
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path('session-view/', session_view),
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path('redirect-view/', redirect_view),
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path('post-view/', post_view)
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]
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@override_settings(ROOT_URLCONF='tests.test_testing')
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class TestAPITestClient(TestCase):
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def setUp(self):
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self.client = APIClient()
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def test_credentials(self):
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"""
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Setting `.credentials()` adds the required headers to each request.
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"""
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self.client.credentials(HTTP_AUTHORIZATION='example')
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for _ in range(0, 3):
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response = self.client.get('/view/')
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assert response.data['auth'] == 'example'
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def test_force_authenticate(self):
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"""
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Setting `.force_authenticate()` forcibly authenticates each request.
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"""
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user = User.objects.create_user('example', 'example@example.com')
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self.client.force_authenticate(user)
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response = self.client.get('/view/')
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assert response.data['user'] == 'example'
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def test_force_authenticate_with_sessions(self):
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"""
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Setting `.force_authenticate()` forcibly authenticates each request.
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"""
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user = User.objects.create_user('example', 'example@example.com')
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self.client.force_authenticate(user)
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# First request does not yet have an active session
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response = self.client.get('/session-view/')
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assert response.data['active_session'] is False
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# Subsequent requests have an active session
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response = self.client.get('/session-view/')
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assert response.data['active_session'] is True
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# Force authenticating as `None` should also logout the user session.
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self.client.force_authenticate(None)
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response = self.client.get('/session-view/')
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assert response.data['active_session'] is False
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def test_csrf_exempt_by_default(self):
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"""
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By default, the test client is CSRF exempt.
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"""
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User.objects.create_user('example', 'example@example.com', 'password')
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self.client.login(username='example', password='password')
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response = self.client.post('/view/')
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assert response.status_code == 200
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def test_explicitly_enforce_csrf_checks(self):
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"""
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The test client can enforce CSRF checks.
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"""
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client = APIClient(enforce_csrf_checks=True)
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User.objects.create_user('example', 'example@example.com', 'password')
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client.login(username='example', password='password')
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response = client.post('/view/')
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expected = {'detail': 'CSRF Failed: CSRF cookie not set.'}
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assert response.status_code == 403
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assert response.data == expected
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def test_can_logout(self):
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"""
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`logout()` resets stored credentials
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"""
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self.client.credentials(HTTP_AUTHORIZATION='example')
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response = self.client.get('/view/')
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assert response.data['auth'] == 'example'
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self.client.logout()
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response = self.client.get('/view/')
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assert response.data['auth'] == b''
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def test_logout_resets_force_authenticate(self):
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"""
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`logout()` resets any `force_authenticate`
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"""
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user = User.objects.create_user('example', 'example@example.com', 'password')
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self.client.force_authenticate(user)
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response = self.client.get('/view/')
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assert response.data['user'] == 'example'
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self.client.logout()
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response = self.client.get('/view/')
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assert response.data['user'] == ''
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def test_follow_redirect(self):
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"""
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Follow redirect by setting follow argument.
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"""
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response = self.client.get('/redirect-view/')
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assert response.status_code == 302
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response = self.client.get('/redirect-view/', follow=True)
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assert response.redirect_chain is not None
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assert response.status_code == 200
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response = self.client.post('/redirect-view/')
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assert response.status_code == 302
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response = self.client.post('/redirect-view/', follow=True)
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assert response.redirect_chain is not None
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assert response.status_code == 200
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response = self.client.put('/redirect-view/')
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assert response.status_code == 302
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response = self.client.put('/redirect-view/', follow=True)
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assert response.redirect_chain is not None
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assert response.status_code == 200
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response = self.client.patch('/redirect-view/')
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assert response.status_code == 302
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response = self.client.patch('/redirect-view/', follow=True)
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assert response.redirect_chain is not None
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assert response.status_code == 200
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response = self.client.delete('/redirect-view/')
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assert response.status_code == 302
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response = self.client.delete('/redirect-view/', follow=True)
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assert response.redirect_chain is not None
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assert response.status_code == 200
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response = self.client.options('/redirect-view/')
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assert response.status_code == 302
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response = self.client.options('/redirect-view/', follow=True)
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assert response.redirect_chain is not None
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assert response.status_code == 200
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def test_invalid_multipart_data(self):
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"""
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MultiPart encoding cannot support nested data, so raise a helpful
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error if the user attempts to do so.
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"""
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self.assertRaises(
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AssertionError, self.client.post,
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path='/view/', data={'valid': 123, 'invalid': {'a': 123}}
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)
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def test_missing_post_payload_causes_400(self):
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response = self.client.post(
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'/post-view/',
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data=None,
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content_type='application/json'
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)
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assert response.status_code == 400
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assert response.data['non_field_errors'] == ['No data provided']
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def test_missing_post_payload_allow_null_causes_200(self):
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response = self.client.post(
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'/post-view/?allow_null=1',
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data=None,
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content_type='application/json'
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)
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assert response.status_code == 200
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assert response.data is None
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@override_settings(REST_FRAMEWORK={'DEFAULT_MISSING_DATA': {}})
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def test_missing_post_payload_coerced_dict_uses_default_boolean_value(self):
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response = self.client.post(
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'/post-view/',
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data=None,
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content_type='application/json'
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)
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assert response.status_code == 200
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assert response.data == {"flag": True}
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class TestAPIRequestFactory(TestCase):
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def test_csrf_exempt_by_default(self):
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"""
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By default, the test client is CSRF exempt.
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"""
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user = User.objects.create_user('example', 'example@example.com', 'password')
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factory = APIRequestFactory()
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request = factory.post('/view/')
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request.user = user
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response = view(request)
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assert response.status_code == 200
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def test_explicitly_enforce_csrf_checks(self):
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"""
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The test client can enforce CSRF checks.
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"""
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user = User.objects.create_user('example', 'example@example.com', 'password')
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factory = APIRequestFactory(enforce_csrf_checks=True)
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request = factory.post('/view/')
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request.user = user
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response = view(request)
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expected = {'detail': 'CSRF Failed: CSRF cookie not set.'}
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assert response.status_code == 403
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assert response.data == expected
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def test_invalid_format(self):
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"""
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Attempting to use a format that is not configured will raise an
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assertion error.
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"""
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factory = APIRequestFactory()
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self.assertRaises(
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AssertionError, factory.post,
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path='/view/', data={'example': 1}, format='xml'
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)
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def test_force_authenticate(self):
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"""
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Setting `force_authenticate()` forcibly authenticates the request.
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"""
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user = User.objects.create_user('example', 'example@example.com')
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factory = APIRequestFactory()
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request = factory.get('/view')
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force_authenticate(request, user=user)
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response = view(request)
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assert response.data['user'] == 'example'
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def test_upload_file(self):
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# This is a 1x1 black png
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simple_png = BytesIO(b'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x06\x00\x00\x00\x1f\x15\xc4\x89\x00\x00\x00\rIDATx\x9cc````\x00\x00\x00\x05\x00\x01\xa5\xf6E@\x00\x00\x00\x00IEND\xaeB`\x82')
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simple_png.name = 'test.png'
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factory = APIRequestFactory()
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factory.post('/', data={'image': simple_png})
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def test_request_factory_url_arguments(self):
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"""
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This is a non regression test against #1461
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"""
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factory = APIRequestFactory()
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request = factory.get('/view/?demo=test')
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assert dict(request.GET) == {'demo': ['test']}
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request = factory.get('/view/', {'demo': 'test'})
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assert dict(request.GET) == {'demo': ['test']}
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def test_request_factory_url_arguments_with_unicode(self):
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factory = APIRequestFactory()
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request = factory.get('/view/?demo=testé')
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assert dict(request.GET) == {'demo': ['testé']}
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request = factory.get('/view/', {'demo': 'testé'})
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assert dict(request.GET) == {'demo': ['testé']}
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def test_empty_request_content_type(self):
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factory = APIRequestFactory()
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request = factory.post(
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'/post-view/',
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data=None,
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content_type='application/json',
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)
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assert request.META['CONTENT_TYPE'] == 'application/json'
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class TestUrlPatternTestCase(URLPatternsTestCase):
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urlpatterns = [
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path('', view),
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]
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@classmethod
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def setUpClass(cls):
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assert urlpatterns is not cls.urlpatterns
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super().setUpClass()
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assert urlpatterns is cls.urlpatterns
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@classmethod
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def tearDownClass(cls):
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assert urlpatterns is cls.urlpatterns
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super().tearDownClass()
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assert urlpatterns is not cls.urlpatterns
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def test_urlpatterns(self):
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assert self.client.get('/').status_code == 200
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class TestExistingPatterns(TestCase):
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def test_urlpatterns(self):
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# sanity test to ensure that this test module does not have a '/' route
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assert self.client.get('/').status_code == 404
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