Add test for SubdomainMiddleware to test wrong subdomain

Author: dojutsu-user

readthedocs/rtd_tests/tests/test_middleware.py

@@ -47,6 +47,13 @@ def test_proper_subdomain(self):
         self.assertEqual(request.urlconf, self.urlconf_subdomain)
         self.assertEqual(request.slug, 'pip')
 
+    @override_settings(PRODUCTION_DOMAIN='readthedocs.org')
+    def test_wrong_subdomain(self):
+        http_host = 'xyz-wrong-sub-domain-xyz.readthedocs.org'
+        request = self.factory.get(self.url, HTTP_HOST=http_host)
+        with self.assertRaises(Http404):
+            self.middleware.process_request(request)
+
     @override_settings(PRODUCTION_DOMAIN='readthedocs.org')
     def test_restore_urlconf_after_request(self):
         """