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import os
import shutil
import tempfile
from django import conf
from django.test import SimpleTestCase
from django.test.utils import extend_sys_path
class TestStartProjectSettings(SimpleTestCase):
def setUp(self):
self.temp_dir = tempfile.TemporaryDirectory()
self.addCleanup(self.temp_dir.cleanup)
template_settings_py = os.path.join(
os.path.dirname(conf.__file__),
"project_template",
"project_name",
"settings.py-tpl",
)
test_settings_py = os.path.join(self.temp_dir.name, "test_settings.py")
shutil.copyfile(template_settings_py, test_settings_py)
def test_middleware_headers(self):
"""
Ensure headers sent by the default MIDDLEWARE don't inadvertently
change. For example, we never want "Vary: Cookie" to appear in the list
since it prevents the caching of responses.
"""
with extend_sys_path(self.temp_dir.name):
from test_settings import MIDDLEWARE
with self.settings(
MIDDLEWARE=MIDDLEWARE,
ROOT_URLCONF="project_template.urls",
):
response = self.client.get("/empty/")
headers = sorted(response.serialize_headers().split(b"\r\n"))
self.assertEqual(
headers,
[
b"Content-Length: 0",
b"Content-Type: text/html; charset=utf-8",
b"Cross-Origin-Opener-Policy: same-origin",
b"Referrer-Policy: same-origin",
b"X-Content-Type-Options: nosniff",
b"X-Frame-Options: DENY",
],
)
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