mirror of
https://github.com/encode/django-rest-framework.git
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36d5c0e74f
According to docs: https://docs.python.org/3/library/unittest.html#unittest.TestCase.addClassCleanup > Add a function to be called after tearDownClass() to cleanup resources used during the test class. Functions will be called in reverse order to the order they are added (LIFO). This was revealed with recent change in pytest (`8.2.0`): > pytest-dev/pytest#11728: For unittest-based tests, exceptions during class cleanup (as raised by functions registered with TestCase.addClassCleanup) are now reported instead of silently failing. `check_urlpatterns` is called before `cleanup_url_patterns` and fails (problem was hidden by `pytest < 8.2.0`). `doClassCleanups` can be used instead to check after-cleanup state: https://docs.python.org/3/library/unittest.html#unittest.TestCase.doClassCleanups > This method is called unconditionally after tearDownClass(), or after setUpClass() if setUpClass() raises an exception. It is responsible for calling all the cleanup functions added by addClassCleanup(). If you need cleanup functions to be called prior to tearDownClass() then you can call doClassCleanups() yourself. Fixes: https://github.com/encode/django-rest-framework/issues/9399 Signed-off-by: Stanislav Levin <slev@altlinux.org>
346 lines
12 KiB
Python
346 lines
12 KiB
Python
import itertools
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from io import BytesIO
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from unittest.mock import patch
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from django.contrib.auth.models import User
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from django.http import HttpResponseRedirect
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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.authtoken.models import Token
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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', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
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def view(request):
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data = {'auth': request.META.get('HTTP_AUTHORIZATION', b'')}
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if request.user:
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data['user'] = request.user.username
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if request.auth:
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data['token'] = request.auth.key
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return Response(data)
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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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@api_view(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
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def redirect_307_308_view(request, code):
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return HttpResponseRedirect('/view/', status=code)
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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.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('redirect-view/<int:code>/', redirect_307_308_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_with_user(self):
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"""
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Setting `.force_authenticate()` with a user forcibly authenticates each
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request with that user.
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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=user)
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response = self.client.get('/view/')
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assert response.data['user'] == 'example'
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assert 'token' not in response.data
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def test_force_authenticate_with_token(self):
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"""
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Setting `.force_authenticate()` with a token forcibly authenticates each
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request with that token.
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"""
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user = User.objects.create_user('example', 'example@example.com')
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token = Token.objects.create(key='xyz', user=user)
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self.client.force_authenticate(token=token)
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response = self.client.get('/view/')
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assert response.data['token'] == 'xyz'
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assert 'user' not in response.data
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def test_force_authenticate_with_user_and_token(self):
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"""
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Setting `.force_authenticate()` with a user and token forcibly
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authenticates each request with that user and token.
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"""
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user = User.objects.create_user('example', 'example@example.com')
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token = Token.objects.create(key='xyz', user=user)
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self.client.force_authenticate(user=user, token=token)
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response = self.client.get('/view/')
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assert response.data['user'] == 'example'
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assert response.data['token'] == 'xyz'
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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 with `None` user and token should also logout
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# the user session.
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self.client.force_authenticate(user=None, token=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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for method in ('get', 'post', 'put', 'patch', 'delete', 'options'):
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with self.subTest(method=method):
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req_method = getattr(self.client, method)
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response = req_method('/redirect-view/')
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assert response.status_code == 302
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response = req_method('/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_follow_307_308_preserve_kwargs(self, *mocked_methods):
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"""
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Follow redirect by setting follow argument, and make sure the following
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method called with appropriate kwargs.
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"""
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methods = ('get', 'post', 'put', 'patch', 'delete', 'options')
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codes = (307, 308)
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for method, code in itertools.product(methods, codes):
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subtest_ctx = self.subTest(method=method, code=code)
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patch_ctx = patch.object(self.client, method, side_effect=getattr(self.client, method))
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with subtest_ctx, patch_ctx as req_method:
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kwargs = {'data': {'example': 'test'}, 'format': 'json'}
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response = req_method('/redirect-view/%s/' % code, follow=True, **kwargs)
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assert response.redirect_chain is not None
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assert response.status_code == 200
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for _, call_args, call_kwargs in req_method.mock_calls:
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assert all(call_kwargs[k] == kwargs[k] for k in kwargs if k in call_kwargs)
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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_empty_post_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 doClassCleanups(cls):
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assert urlpatterns is cls.urlpatterns
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super().doClassCleanups()
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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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