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django/tests/middleware_exceptions/tests.py
Aaron Chong 2d472ad05c Fixed #33495 -- Improved debug logging message about adapting handlers for middlewares.
It's the wrapped handler that's adapted to the wrapping middleware.
2022-02-09 12:10:26 +01:00

418 lines
15 KiB
Python

from django.conf import settings
from django.core.exceptions import MiddlewareNotUsed
from django.http import HttpResponse
from django.test import RequestFactory, SimpleTestCase, override_settings
from . import middleware as mw
@override_settings(ROOT_URLCONF="middleware_exceptions.urls")
class MiddlewareTests(SimpleTestCase):
def tearDown(self):
mw.log = []
@override_settings(
MIDDLEWARE=["middleware_exceptions.middleware.ProcessViewNoneMiddleware"]
)
def test_process_view_return_none(self):
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(mw.log, ["processed view normal_view"])
self.assertEqual(response.content, b"OK")
@override_settings(
MIDDLEWARE=["middleware_exceptions.middleware.ProcessViewMiddleware"]
)
def test_process_view_return_response(self):
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(response.content, b"Processed view normal_view")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.ProcessViewTemplateResponseMiddleware",
"middleware_exceptions.middleware.LogMiddleware",
]
)
def test_templateresponse_from_process_view_rendered(self):
"""
TemplateResponses returned from process_view() must be rendered before
being passed to any middleware that tries to access response.content,
such as middleware_exceptions.middleware.LogMiddleware.
"""
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(
response.content,
b"Processed view normal_view\nProcessViewTemplateResponseMiddleware",
)
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.ProcessViewTemplateResponseMiddleware",
"middleware_exceptions.middleware.TemplateResponseMiddleware",
]
)
def test_templateresponse_from_process_view_passed_to_process_template_response(
self,
):
"""
TemplateResponses returned from process_view() should be passed to any
template response middleware.
"""
response = self.client.get("/middleware_exceptions/view/")
expected_lines = [
b"Processed view normal_view",
b"ProcessViewTemplateResponseMiddleware",
b"TemplateResponseMiddleware",
]
self.assertEqual(response.content, b"\n".join(expected_lines))
@override_settings(
MIDDLEWARE=["middleware_exceptions.middleware.TemplateResponseMiddleware"]
)
def test_process_template_response(self):
response = self.client.get("/middleware_exceptions/template_response/")
self.assertEqual(
response.content, b"template_response OK\nTemplateResponseMiddleware"
)
@override_settings(
MIDDLEWARE=["middleware_exceptions.middleware.NoTemplateResponseMiddleware"]
)
def test_process_template_response_returns_none(self):
msg = (
"NoTemplateResponseMiddleware.process_template_response didn't "
"return an HttpResponse object. It returned None instead."
)
with self.assertRaisesMessage(ValueError, msg):
self.client.get("/middleware_exceptions/template_response/")
@override_settings(MIDDLEWARE=["middleware_exceptions.middleware.LogMiddleware"])
def test_view_exception_converted_before_middleware(self):
response = self.client.get("/middleware_exceptions/permission_denied/")
self.assertEqual(mw.log, [(response.status_code, response.content)])
self.assertEqual(response.status_code, 403)
@override_settings(
MIDDLEWARE=["middleware_exceptions.middleware.ProcessExceptionMiddleware"]
)
def test_view_exception_handled_by_process_exception(self):
response = self.client.get("/middleware_exceptions/error/")
self.assertEqual(response.content, b"Exception caught")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.ProcessExceptionLogMiddleware",
"middleware_exceptions.middleware.ProcessExceptionMiddleware",
]
)
def test_response_from_process_exception_short_circuits_remainder(self):
response = self.client.get("/middleware_exceptions/error/")
self.assertEqual(mw.log, [])
self.assertEqual(response.content, b"Exception caught")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.ProcessExceptionMiddleware",
"middleware_exceptions.middleware.ProcessExceptionLogMiddleware",
]
)
def test_response_from_process_exception_when_return_response(self):
response = self.client.get("/middleware_exceptions/error/")
self.assertEqual(mw.log, ["process-exception"])
self.assertEqual(response.content, b"Exception caught")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.LogMiddleware",
"middleware_exceptions.middleware.NotFoundMiddleware",
]
)
def test_exception_in_middleware_converted_before_prior_middleware(self):
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(mw.log, [(404, response.content)])
self.assertEqual(response.status_code, 404)
@override_settings(
MIDDLEWARE=["middleware_exceptions.middleware.ProcessExceptionMiddleware"]
)
def test_exception_in_render_passed_to_process_exception(self):
response = self.client.get("/middleware_exceptions/exception_in_render/")
self.assertEqual(response.content, b"Exception caught")
@override_settings(ROOT_URLCONF="middleware_exceptions.urls")
class RootUrlconfTests(SimpleTestCase):
@override_settings(ROOT_URLCONF=None)
def test_missing_root_urlconf(self):
# Removing ROOT_URLCONF is safe, as override_settings will restore
# the previously defined settings.
del settings.ROOT_URLCONF
with self.assertRaises(AttributeError):
self.client.get("/middleware_exceptions/view/")
class MyMiddleware:
def __init__(self, get_response):
raise MiddlewareNotUsed
def process_request(self, request):
pass
class MyMiddlewareWithExceptionMessage:
def __init__(self, get_response):
raise MiddlewareNotUsed("spam eggs")
def process_request(self, request):
pass
@override_settings(
DEBUG=True,
ROOT_URLCONF="middleware_exceptions.urls",
MIDDLEWARE=["django.middleware.common.CommonMiddleware"],
)
class MiddlewareNotUsedTests(SimpleTestCase):
rf = RequestFactory()
def test_raise_exception(self):
request = self.rf.get("middleware_exceptions/view/")
with self.assertRaises(MiddlewareNotUsed):
MyMiddleware(lambda req: HttpResponse()).process_request(request)
@override_settings(MIDDLEWARE=["middleware_exceptions.tests.MyMiddleware"])
def test_log(self):
with self.assertLogs("django.request", "DEBUG") as cm:
self.client.get("/middleware_exceptions/view/")
self.assertEqual(
cm.records[0].getMessage(),
"MiddlewareNotUsed: 'middleware_exceptions.tests.MyMiddleware'",
)
@override_settings(
MIDDLEWARE=["middleware_exceptions.tests.MyMiddlewareWithExceptionMessage"]
)
def test_log_custom_message(self):
with self.assertLogs("django.request", "DEBUG") as cm:
self.client.get("/middleware_exceptions/view/")
self.assertEqual(
cm.records[0].getMessage(),
"MiddlewareNotUsed('middleware_exceptions.tests."
"MyMiddlewareWithExceptionMessage'): spam eggs",
)
@override_settings(
DEBUG=False,
MIDDLEWARE=["middleware_exceptions.tests.MyMiddleware"],
)
def test_do_not_log_when_debug_is_false(self):
with self.assertNoLogs("django.request", "DEBUG"):
self.client.get("/middleware_exceptions/view/")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.SyncAndAsyncMiddleware",
"middleware_exceptions.tests.MyMiddleware",
]
)
async def test_async_and_sync_middleware_chain_async_call(self):
with self.assertLogs("django.request", "DEBUG") as cm:
response = await self.async_client.get("/middleware_exceptions/view/")
self.assertEqual(response.content, b"OK")
self.assertEqual(response.status_code, 200)
self.assertEqual(
cm.records[0].getMessage(),
"Asynchronous handler adapted for middleware "
"middleware_exceptions.tests.MyMiddleware.",
)
self.assertEqual(
cm.records[1].getMessage(),
"MiddlewareNotUsed: 'middleware_exceptions.tests.MyMiddleware'",
)
@override_settings(
DEBUG=True,
ROOT_URLCONF="middleware_exceptions.urls",
)
class MiddlewareSyncAsyncTests(SimpleTestCase):
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.PaymentMiddleware",
]
)
def test_sync_middleware(self):
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(response.status_code, 402)
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.DecoratedPaymentMiddleware",
]
)
def test_sync_decorated_middleware(self):
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(response.status_code, 402)
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.async_payment_middleware",
]
)
def test_async_middleware(self):
with self.assertLogs("django.request", "DEBUG") as cm:
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(response.status_code, 402)
self.assertEqual(
cm.records[0].getMessage(),
"Synchronous handler adapted for middleware "
"middleware_exceptions.middleware.async_payment_middleware.",
)
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.NotSyncOrAsyncMiddleware",
]
)
def test_not_sync_or_async_middleware(self):
msg = (
"Middleware "
"middleware_exceptions.middleware.NotSyncOrAsyncMiddleware must "
"have at least one of sync_capable/async_capable set to True."
)
with self.assertRaisesMessage(RuntimeError, msg):
self.client.get("/middleware_exceptions/view/")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.PaymentMiddleware",
]
)
async def test_sync_middleware_async(self):
with self.assertLogs("django.request", "DEBUG") as cm:
response = await self.async_client.get("/middleware_exceptions/view/")
self.assertEqual(response.status_code, 402)
self.assertEqual(
cm.records[0].getMessage(),
"Asynchronous handler adapted for middleware "
"middleware_exceptions.middleware.PaymentMiddleware.",
)
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.async_payment_middleware",
]
)
async def test_async_middleware_async(self):
with self.assertLogs("django.request", "WARNING") as cm:
response = await self.async_client.get("/middleware_exceptions/view/")
self.assertEqual(response.status_code, 402)
self.assertEqual(
cm.records[0].getMessage(),
"Payment Required: /middleware_exceptions/view/",
)
@override_settings(
DEBUG=False,
MIDDLEWARE=[
"middleware_exceptions.middleware.AsyncNoTemplateResponseMiddleware",
],
)
def test_async_process_template_response_returns_none_with_sync_client(self):
msg = (
"AsyncNoTemplateResponseMiddleware.process_template_response "
"didn't return an HttpResponse object."
)
with self.assertRaisesMessage(ValueError, msg):
self.client.get("/middleware_exceptions/template_response/")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.SyncAndAsyncMiddleware",
]
)
async def test_async_and_sync_middleware_async_call(self):
response = await self.async_client.get("/middleware_exceptions/view/")
self.assertEqual(response.content, b"OK")
self.assertEqual(response.status_code, 200)
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.SyncAndAsyncMiddleware",
]
)
def test_async_and_sync_middleware_sync_call(self):
response = self.client.get("/middleware_exceptions/view/")
self.assertEqual(response.content, b"OK")
self.assertEqual(response.status_code, 200)
@override_settings(ROOT_URLCONF="middleware_exceptions.urls")
class AsyncMiddlewareTests(SimpleTestCase):
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.AsyncTemplateResponseMiddleware",
]
)
async def test_process_template_response(self):
response = await self.async_client.get(
"/middleware_exceptions/template_response/"
)
self.assertEqual(
response.content,
b"template_response OK\nAsyncTemplateResponseMiddleware",
)
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.AsyncNoTemplateResponseMiddleware",
]
)
async def test_process_template_response_returns_none(self):
msg = (
"AsyncNoTemplateResponseMiddleware.process_template_response "
"didn't return an HttpResponse object. It returned None instead."
)
with self.assertRaisesMessage(ValueError, msg):
await self.async_client.get("/middleware_exceptions/template_response/")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.AsyncProcessExceptionMiddleware",
]
)
async def test_exception_in_render_passed_to_process_exception(self):
response = await self.async_client.get(
"/middleware_exceptions/exception_in_render/"
)
self.assertEqual(response.content, b"Exception caught")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.AsyncProcessExceptionMiddleware",
]
)
async def test_exception_in_async_render_passed_to_process_exception(self):
response = await self.async_client.get(
"/middleware_exceptions/async_exception_in_render/"
)
self.assertEqual(response.content, b"Exception caught")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.AsyncProcessExceptionMiddleware",
]
)
async def test_view_exception_handled_by_process_exception(self):
response = await self.async_client.get("/middleware_exceptions/error/")
self.assertEqual(response.content, b"Exception caught")
@override_settings(
MIDDLEWARE=[
"middleware_exceptions.middleware.AsyncProcessViewMiddleware",
]
)
async def test_process_view_return_response(self):
response = await self.async_client.get("/middleware_exceptions/view/")
self.assertEqual(response.content, b"Processed view normal_view")