import os import shutil from django import conf from django.test import TestCase from django.utils._os import upath class TestStartProjectSettings(TestCase): def setUp(self): # Ensure settings.py exists project_dir = os.path.join( os.path.dirname(upath(conf.__file__)), 'project_template', 'project_name', ) template_settings_py = os.path.join(project_dir, 'settings.py-tpl') test_settings_py = os.path.join(project_dir, 'settings.py') shutil.copyfile(template_settings_py, test_settings_py) self.addCleanup(os.remove, 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. """ from django.conf.project_template.project_name.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'X-Frame-Options: SAMEORIGIN', ])