Added a default test Client to TestCase, and added some assertions for some common testing patterns.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@5150 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/test/testcases.py

@@ -1,8 +1,10 @@
 import re, doctest, unittest
+from urlparse import urlparse
 from django.db import transaction
 from django.core import management
 from django.db.models import get_apps
-    
+from django.test.client import Client
+
 normalize_long_ints = lambda s: re.sub(r'(?<![\w])(\d+)L(?![\w])', '\\1', s)
 
 class OutputChecker(doctest.OutputChecker):
@@ -46,5 +48,33 @@ class TestCase(unittest.TestCase):
         super().
         
         """
+        self.client = Client()
         self.install_fixtures()
         super(TestCase, self).run(result)
+
+    def assertRedirects(self, response, expected_path):
+        """Assert that a response redirected to a specific URL, and that the 
+        redirect URL can be loaded.
+        
+        """
+        self.assertEqual(response.status_code, 302, 
+            "Response didn't redirect: Reponse code was %d" % response.status_code)
+        scheme, netloc, path, params, query, fragment = urlparse(response['Location'])
+        self.assertEqual(path, expected_path, 
+            "Response redirected to '%s', expected '%s'" % (path, expected_path))
+        redirect_response = self.client.get(path)
+        self.assertEqual(redirect_response.status_code, 200, 
+            "Couldn't retrieve redirection page '%s'" % path)
+    
+    def assertContains(self, response, text, count=1):
+        """Assert that a response indicates that a page was retreived successfully,
+        (i.e., the HTTP status code was 200), and that ``text`` occurs ``count`` 
+        times in the content of the response.
+        
+        """
+        self.assertEqual(response.status_code, 200,
+            "Couldn't retrieve page'")
+        real_count = response.content.count(text)
+        self.assertEqual(real_count, count,
+            "Could only find %d of %d instances of '%s' in response" % (real_count, count, text))
+