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from django.contrib.messages import constants
from django.contrib.messages.storage.base import Message
from django.contrib.messages.storage.session import SessionStorage
from django.core.exceptions import ImproperlyConfigured
from django.http import HttpRequest
from django.test import TestCase
from django.utils.safestring import SafeData, mark_safe
from .base import BaseTests
def set_session_data(storage, messages):
"""
Sets the messages into the backend request's session and remove the
backend's loaded data cache.
"""
storage.request.session[storage.session_key] = storage.serialize_messages(messages)
if hasattr(storage, "_loaded_data"):
del storage._loaded_data
def stored_session_messages_count(storage):
data = storage.deserialize_messages(
storage.request.session.get(storage.session_key, [])
)
return len(data)
class SessionTests(BaseTests, TestCase):
storage_class = SessionStorage
def get_request(self):
self.session = {}
request = super().get_request()
request.session = self.session
return request
def stored_messages_count(self, storage, response):
return stored_session_messages_count(storage)
def test_no_session(self):
msg = (
"The session-based temporary message storage requires session "
"middleware to be installed, and come before the message "
"middleware in the MIDDLEWARE list."
)
with self.assertRaisesMessage(ImproperlyConfigured, msg):
self.storage_class(HttpRequest())
def test_get(self):
storage = self.storage_class(self.get_request())
example_messages = ["test", "me"]
set_session_data(storage, example_messages)
self.assertEqual(list(storage), example_messages)
def test_safedata(self):
"""
A message containing SafeData keeps its safe status when retrieved from
the message storage.
"""
storage = self.get_storage()
message = Message(constants.DEBUG, mark_safe("<b>Hello Django!</b>"))
set_session_data(storage, [message])
self.assertIsInstance(list(storage)[0].message, SafeData)
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