[1.7.x] Revert "Fixed #15179 -- middlewares not applied for test client login()"

This reverts commit 4fdd51b732.

See the ticket for concerns with this implementation; it will be revisited.

Backport of aabceadd7d from master

tests/test_client_regress/tests.py

@@ -7,7 +7,6 @@ from __future__ import unicode_literals
 import os
 import itertools
 
-from django.conf import settings
 from django.core.urlresolvers import reverse, NoReverseMatch
 from django.template import (TemplateSyntaxError,
     Context, Template, loader)
@@ -770,11 +769,6 @@ class AssertFormsetErrorTests(TestCase):
                                     **kwargs)
 
 
-class ProcessedMiddleware(object):
-    def process_request(self, request):
-        request.has_been_processed = True
-
-
 @override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class LoginTests(TestCase):
     urls = 'test_client_regress.urls'
@@ -796,24 +790,6 @@ class LoginTests(TestCase):
         # default client.
         self.assertRedirects(response, "http://testserver/get_view/")
 
-    @override_settings(
-        MIDDLEWARE_CLASSES=list(settings.MIDDLEWARE_CLASSES) +
-        ['test_client_regress.tests.ProcessedMiddleware'])
-    def test_request_middleware(self):
-        "Check that the request middleware is executed on login request"
-
-        def listener(sender, signal, **kwargs):
-            request = kwargs['request']
-            self.assertTrue(hasattr(request, 'has_been_processed'))
-
-        # Unlike other Client request performing methods, login and logout don't
-        # return the response, therefore we must use signals to get it
-        user_logged_in.connect(listener)
-        try:
-            self.client.login(username='testclient', password='password')
-        finally:
-            user_logged_in.disconnect(listener)
-
 
 @override_settings(
     PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
@@ -1314,7 +1290,6 @@ class UploadedFileEncodingTest(TestCase):
 
 class RequestHeadersTest(TestCase):
     urls = 'test_client_regress.urls'
-    fixtures = ['testdata']
 
     def test_client_headers(self):
         "A test client can receive custom headers"
@@ -1322,24 +1297,6 @@ class RequestHeadersTest(TestCase):
         self.assertEqual(response.content, b"HTTP_X_ARG_CHECK: Testing 123")
         self.assertEqual(response.status_code, 200)
 
-    @override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
-    def test_client_login_headers(self):
-        "Test client headers are used in login"
-
-        client = Client(HTTP_HOST='different')
-
-        def listener(sender, signal, **kwargs):
-            request = kwargs['request']
-            self.assertEqual(request.get_host(), 'different')
-
-        # Unlike other Client request performing methods, login and logout don't
-        # return the response, therefore we must use signals to get it
-        user_logged_in.connect(listener)
-        try:
-            client.login(username='testclient', password='password')
-        finally:
-            user_logged_in.disconnect(listener)
-
     def test_client_headers_redirect(self):
         "Test client headers are preserved through redirects"
         response = self.client.get("/check_headers_redirect/", follow=True, HTTP_X_ARG_CHECK='Testing 123')