From fc8f097117af7ada616fad20ae5b417fcf740413 Mon Sep 17 00:00:00 2001
From: Ben Demboski <ben@joltlabs.com>
Date: Fri, 5 Aug 2016 17:18:12 -0700
Subject: Fixed #27027 -- Restored Client.force_login() defaulting to the first
 auth backend.

---
 tests/test_client/tests.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'tests')

diff --git a/tests/test_client/tests.py b/tests/test_client/tests.py
index 497df1591c..d017fa42b1 100644
--- a/tests/test_client/tests.py
+++ b/tests/test_client/tests.py
@@ -532,12 +532,30 @@ class ClientTest(TestCase):
 
         # Log in
         self.client.force_login(self.u1, backend='test_client.auth_backends.TestClientBackend')
+        self.assertEqual(self.u1.backend, 'test_client.auth_backends.TestClientBackend')
 
         # Request a page that requires a login
         response = self.client.get('/login_protected_view/')
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response.context['user'].username, 'testclient')
 
+    @override_settings(
+        AUTHENTICATION_BACKENDS=[
+            'django.contrib.auth.backends.ModelBackend',
+            'test_client.auth_backends.TestClientBackend',
+        ],
+    )
+    def test_force_login_without_backend(self):
+        """
+        force_login() without passing a backend and with multiple backends
+        configured should automatically use the first backend.
+        """
+        self.client.force_login(self.u1)
+        response = self.client.get('/login_protected_view/')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.context['user'].username, 'testclient')
+        self.assertEqual(self.u1.backend, 'django.contrib.auth.backends.ModelBackend')
+
     @override_settings(SESSION_ENGINE="django.contrib.sessions.backends.signed_cookies")
     def test_logout_cookie_sessions(self):
         self.test_logout()
-- 
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