django-rest-framework/tests/test_testing.py
willbeaufoy 354ae73ffb
Make APIClient.force_authenticate() work with user=None (#8212)
* Fix testing with token

* Add unit test

* Split unit test into 3

* Fix linting error
2022-09-15 09:35:48 +01:00

358 lines
13 KiB
Python

import itertools
from io import BytesIO
from unittest.mock import patch
import django
from django.contrib.auth.models import User
from django.http import HttpResponseRedirect
from django.shortcuts import redirect
from django.test import TestCase, override_settings
from django.urls import path
from rest_framework import fields, serializers
from rest_framework.authtoken.models import Token
from rest_framework.decorators import api_view
from rest_framework.response import Response
from rest_framework.test import (
APIClient, APIRequestFactory, URLPatternsTestCase, force_authenticate
)
@api_view(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
def view(request):
data = {'auth': request.META.get('HTTP_AUTHORIZATION', b'')}
if request.user:
data['user'] = request.user.username
if request.auth:
data['token'] = request.auth.key
return Response(data)
@api_view(['GET', 'POST'])
def session_view(request):
active_session = request.session.get('active_session', False)
request.session['active_session'] = True
return Response({
'active_session': active_session
})
@api_view(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
def redirect_view(request):
return redirect('/view/')
@api_view(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
def redirect_307_308_view(request, code):
return HttpResponseRedirect('/view/', status=code)
class BasicSerializer(serializers.Serializer):
flag = fields.BooleanField(default=lambda: True)
@api_view(['POST'])
def post_view(request):
serializer = BasicSerializer(data=request.data)
serializer.is_valid(raise_exception=True)
return Response(serializer.validated_data)
urlpatterns = [
path('view/', view),
path('session-view/', session_view),
path('redirect-view/', redirect_view),
path('redirect-view/<int:code>/', redirect_307_308_view),
path('post-view/', post_view)
]
@override_settings(ROOT_URLCONF='tests.test_testing')
class TestAPITestClient(TestCase):
def setUp(self):
self.client = APIClient()
def test_credentials(self):
"""
Setting `.credentials()` adds the required headers to each request.
"""
self.client.credentials(HTTP_AUTHORIZATION='example')
for _ in range(0, 3):
response = self.client.get('/view/')
assert response.data['auth'] == 'example'
def test_force_authenticate_with_user(self):
"""
Setting `.force_authenticate()` with a user forcibly authenticates each
request with that user.
"""
user = User.objects.create_user('example', 'example@example.com')
self.client.force_authenticate(user=user)
response = self.client.get('/view/')
assert response.data['user'] == 'example'
assert 'token' not in response.data
def test_force_authenticate_with_token(self):
"""
Setting `.force_authenticate()` with a token forcibly authenticates each
request with that token.
"""
user = User.objects.create_user('example', 'example@example.com')
token = Token.objects.create(key='xyz', user=user)
self.client.force_authenticate(token=token)
response = self.client.get('/view/')
assert response.data['token'] == 'xyz'
assert 'user' not in response.data
def test_force_authenticate_with_user_and_token(self):
"""
Setting `.force_authenticate()` with a user and token forcibly
authenticates each request with that user and token.
"""
user = User.objects.create_user('example', 'example@example.com')
token = Token.objects.create(key='xyz', user=user)
self.client.force_authenticate(user=user, token=token)
response = self.client.get('/view/')
assert response.data['user'] == 'example'
assert response.data['token'] == 'xyz'
def test_force_authenticate_with_sessions(self):
"""
Setting `.force_authenticate()` forcibly authenticates each request.
"""
user = User.objects.create_user('example', 'example@example.com')
self.client.force_authenticate(user)
# First request does not yet have an active session
response = self.client.get('/session-view/')
assert response.data['active_session'] is False
# Subsequent requests have an active session
response = self.client.get('/session-view/')
assert response.data['active_session'] is True
# Force authenticating with `None` user and token should also logout
# the user session.
self.client.force_authenticate(user=None, token=None)
response = self.client.get('/session-view/')
assert response.data['active_session'] is False
def test_csrf_exempt_by_default(self):
"""
By default, the test client is CSRF exempt.
"""
User.objects.create_user('example', 'example@example.com', 'password')
self.client.login(username='example', password='password')
response = self.client.post('/view/')
assert response.status_code == 200
def test_explicitly_enforce_csrf_checks(self):
"""
The test client can enforce CSRF checks.
"""
client = APIClient(enforce_csrf_checks=True)
User.objects.create_user('example', 'example@example.com', 'password')
client.login(username='example', password='password')
response = client.post('/view/')
expected = {'detail': 'CSRF Failed: CSRF cookie not set.'}
assert response.status_code == 403
assert response.data == expected
def test_can_logout(self):
"""
`logout()` resets stored credentials
"""
self.client.credentials(HTTP_AUTHORIZATION='example')
response = self.client.get('/view/')
assert response.data['auth'] == 'example'
self.client.logout()
response = self.client.get('/view/')
assert response.data['auth'] == b''
def test_logout_resets_force_authenticate(self):
"""
`logout()` resets any `force_authenticate`
"""
user = User.objects.create_user('example', 'example@example.com', 'password')
self.client.force_authenticate(user)
response = self.client.get('/view/')
assert response.data['user'] == 'example'
self.client.logout()
response = self.client.get('/view/')
assert response.data['user'] == ''
def test_follow_redirect(self):
"""
Follow redirect by setting follow argument.
"""
for method in ('get', 'post', 'put', 'patch', 'delete', 'options'):
with self.subTest(method=method):
req_method = getattr(self.client, method)
response = req_method('/redirect-view/')
assert response.status_code == 302
response = req_method('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
def test_follow_307_308_preserve_kwargs(self, *mocked_methods):
"""
Follow redirect by setting follow argument, and make sure the following
method called with appropriate kwargs.
"""
methods = ('get', 'post', 'put', 'patch', 'delete', 'options')
codes = (307, 308)
for method, code in itertools.product(methods, codes):
subtest_ctx = self.subTest(method=method, code=code)
patch_ctx = patch.object(self.client, method, side_effect=getattr(self.client, method))
with subtest_ctx, patch_ctx as req_method:
kwargs = {'data': {'example': 'test'}, 'format': 'json'}
response = req_method('/redirect-view/%s/' % code, follow=True, **kwargs)
assert response.redirect_chain is not None
assert response.status_code == 200
for _, call_args, call_kwargs in req_method.mock_calls:
assert all(call_kwargs[k] == kwargs[k] for k in kwargs if k in call_kwargs)
def test_invalid_multipart_data(self):
"""
MultiPart encoding cannot support nested data, so raise a helpful
error if the user attempts to do so.
"""
self.assertRaises(
AssertionError, self.client.post,
path='/view/', data={'valid': 123, 'invalid': {'a': 123}}
)
def test_empty_post_uses_default_boolean_value(self):
response = self.client.post(
'/post-view/',
data=None,
content_type='application/json'
)
assert response.status_code == 200
assert response.data == {"flag": True}
class TestAPIRequestFactory(TestCase):
def test_csrf_exempt_by_default(self):
"""
By default, the test client is CSRF exempt.
"""
user = User.objects.create_user('example', 'example@example.com', 'password')
factory = APIRequestFactory()
request = factory.post('/view/')
request.user = user
response = view(request)
assert response.status_code == 200
def test_explicitly_enforce_csrf_checks(self):
"""
The test client can enforce CSRF checks.
"""
user = User.objects.create_user('example', 'example@example.com', 'password')
factory = APIRequestFactory(enforce_csrf_checks=True)
request = factory.post('/view/')
request.user = user
response = view(request)
expected = {'detail': 'CSRF Failed: CSRF cookie not set.'}
assert response.status_code == 403
assert response.data == expected
def test_invalid_format(self):
"""
Attempting to use a format that is not configured will raise an
assertion error.
"""
factory = APIRequestFactory()
self.assertRaises(
AssertionError, factory.post,
path='/view/', data={'example': 1}, format='xml'
)
def test_force_authenticate(self):
"""
Setting `force_authenticate()` forcibly authenticates the request.
"""
user = User.objects.create_user('example', 'example@example.com')
factory = APIRequestFactory()
request = factory.get('/view')
force_authenticate(request, user=user)
response = view(request)
assert response.data['user'] == 'example'
def test_upload_file(self):
# This is a 1x1 black png
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')
simple_png.name = 'test.png'
factory = APIRequestFactory()
factory.post('/', data={'image': simple_png})
def test_request_factory_url_arguments(self):
"""
This is a non regression test against #1461
"""
factory = APIRequestFactory()
request = factory.get('/view/?demo=test')
assert dict(request.GET) == {'demo': ['test']}
request = factory.get('/view/', {'demo': 'test'})
assert dict(request.GET) == {'demo': ['test']}
def test_request_factory_url_arguments_with_unicode(self):
factory = APIRequestFactory()
request = factory.get('/view/?demo=testé')
assert dict(request.GET) == {'demo': ['testé']}
request = factory.get('/view/', {'demo': 'testé'})
assert dict(request.GET) == {'demo': ['testé']}
def test_empty_request_content_type(self):
factory = APIRequestFactory()
request = factory.post(
'/post-view/',
data=None,
content_type='application/json',
)
assert request.META['CONTENT_TYPE'] == 'application/json'
def check_urlpatterns(cls):
assert urlpatterns is not cls.urlpatterns
class TestUrlPatternTestCase(URLPatternsTestCase):
urlpatterns = [
path('', view),
]
@classmethod
def setUpClass(cls):
assert urlpatterns is not cls.urlpatterns
super().setUpClass()
assert urlpatterns is cls.urlpatterns
if django.VERSION > (4, 0):
cls.addClassCleanup(
check_urlpatterns,
cls
)
if django.VERSION < (4, 0):
@classmethod
def tearDownClass(cls):
assert urlpatterns is cls.urlpatterns
super().tearDownClass()
assert urlpatterns is not cls.urlpatterns
def test_urlpatterns(self):
assert self.client.get('/').status_code == 200
class TestExistingPatterns(TestCase):
def test_urlpatterns(self):
# sanity test to ensure that this test module does not have a '/' route
assert self.client.get('/').status_code == 404