Add credential requirements tests to devel app

* Add models.py required file to app
* Use user_passes_test instead of custom superuser checking in
  new_user_form as it implements the same "next" redirection as
  login_required

Signed-off-by: Ismael Carnales <icarnales@gmail.com>

devel/tests.py

@@ -0,0 +1,39 @@
+from django.test import TestCase
+
+
+class DevelTest(TestCase):
+
+    def test_index(self):
+        response = self.client.get('/devel/')
+        self.assertEqual(response.status_code, 302)
+        self.assertEqual(response.has_header('Location'), True)
+        self.assertEqual(response['location'],
+                         'http://testserver/login/?next=/devel/')
+
+    def test_notify(self):
+        response = self.client.get('/devel/notify/')
+        self.assertEqual(response.status_code, 302)
+        self.assertEqual(response.has_header('Location'), True)
+        self.assertEqual(response['location'],
+                         'http://testserver/login/?next=/devel/notify/')
+
+    def test_profile(self):
+        response = self.client.get('/devel/profile/')
+        self.assertEqual(response.status_code, 302)
+        self.assertEqual(response.has_header('Location'), True)
+        self.assertEqual(response['location'],
+                         'http://testserver/login/?next=/devel/profile/')
+
+    def test_newuser(self):
+        response = self.client.get('/devel/newuser/')
+        self.assertEqual(response.status_code, 302)
+        self.assertEqual(response.has_header('Location'), True)
+        self.assertEqual(response['location'],
+                         'http://testserver/login/?next=/devel/newuser/')
+
+    def test_mirrors(self):
+        response = self.client.get('/mirrors/')
+        self.assertEqual(response.status_code, 302)
+        self.assertEqual(response.has_header('Location'), True)
+        self.assertEqual(response['location'],
+                         'http://testserver/login/?next=/mirrors/')

devel/views.py

@@ -1,6 +1,6 @@
 from django import forms
 from django.http import HttpResponseRedirect
-from django.contrib.auth.decorators import login_required
+from django.contrib.auth.decorators import login_required, user_passes_test
 from django.contrib.auth.models import User
 from django.shortcuts import render_to_response
 from django.template import RequestContext
@@ -105,10 +105,8 @@ def save(self):
                 [user.email],
                 fail_silently=False)
 
+@user_passes_test(lambda u: u.is_superuser)
 def new_user_form(request):
-    if not request.user.is_superuser:
-        return HttpResponseRedirect('/login/')
-
     if request.POST:
         form = NewUserForm(request.POST)
         if form.is_valid():