stb#250 Create initial tests for refarm_redirects app

tests/refarm_redirects/test_views.py

@@ -1,2 +1,50 @@
-# @todo #140:30m Move test case to custom redirects app
-#  You can find example at SE's tests_views.Redirects app
+import unittest
+
+from django.contrib.redirects.models import Redirect
+from django.contrib.sites.models import Site
+from django.db.utils import IntegrityError
+from django.test import TestCase
+
+
+class Redirects(TestCase):
+
+    def test_redirect_from_existing_page(self):
+        """`refarm-site.redirects` app should redirect from existing url too."""
+        # take some existing `url_from`
+        # @todo #360:30m Remove hardcoded fixture data.
+        #  Replace `url_from` and `url_to` with urls, generated from db.
+        #  It'll be much more short and clear.
+        url_from = '/catalog/categories/category-0/tags/6-v/'
+        # create redirect from `url_from` to another existing one - `url_to`
+        url_to = '/catalog/categories/category-0/'
+        Redirect.objects.create(
+            site=Site.objects.first(),
+            old_path=url_from,
+            new_path=url_to
+        )
+
+        # `url_from` should redirect to `url_to`
+        response = self.client.get(url_from)
+        self.assertEqual(response.status_code, 301)
+
+    # @todo #360:60m Add db constraint for looped redirect.
+    #  Example of looped redirect:
+    #  `/news/one-two/ --> /news/one-two/`
+    #  `60m` because schema and data migrations are needed.
+    #  And fix test.
+    @unittest.expectedFailure
+    def test_looped_redirect(self):
+        """
+        Redirect like `/news/one-two/ --> /news/one-two/` should fail.
+
+        It should meet db constraint while adding.
+        """
+        # hardcoded fixtures will be fixed with task in test ahead.
+        url_from = url_to = '/catalog/categories/category-0/tags/6-v/'
+        # should raise exception, but not. Pdd task ahead will fix it.
+        with self.assertRaises(IntegrityError):
+            Redirect.objects.create(
+                site=Site.objects.first(),
+                old_path=url_from,
+                new_path=url_to
+            )