Fixed #7165 -- Added an assertNotContains() method to the test client…

…. Thanks for the suggestion and implementation, J. Pablo Fernandez <pupeno@pupeno.com>.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7578 bcc190cf-cafb-0310-a4f2-bffc1f526a37

AUTHORS

@@ -142,6 +142,7 @@ answer newbie questions, and generally made Django that much better:
     Bill Fenner <fenner@gmail.com>
     Stefane Fermgier <sf@fermigier.com>
     Afonso Fernández Nogueira <fonzzo.django@gmail.com>
+	J. Pablo Fernandez <pupeno@pupeno.com>
     Matthew Flanagan <http://wadofstuff.blogspot.com>
     Eric Floehr <eric@intellovations.com>
     Vincent Foley <vfoleybourgon@yahoo.ca>

django/test/testcases.py

@@ -128,6 +128,18 @@ def assertContains(self, response, text, count=None, status_code=200):
             self.failUnless(real_count != 0,
                             "Couldn't find '%s' in response" % text)
 
+    def assertNotContains(self, response, text, status_code=200):
+        """
+        Asserts that a response indicates that a page was retrieved
+        successfully, (i.e., the HTTP status code was as expected), and that
+        ``text`` doesn't occurs in the content of the response.
+        """
+        self.assertEqual(response.status_code, status_code,
+            "Couldn't retrieve page: Response code was %d (expected %d)'" %
+                (response.status_code, status_code))
+        self.assertEqual(response.content.count(text), 0,
+                         "Response should not contain '%s'" % text)
+
     def assertFormError(self, response, form, field, errors):
         """
         Asserts that a form used to render the response has a specific field

docs/testing.txt

@@ -822,6 +822,10 @@ useful for testing Web applications:
     that ``text`` appears in the content of the response. If ``count`` is
     provided, ``text`` must occur exactly ``count`` times in the response.
 
+``assertNotContains(response, text, status_code=200)``
+    Asserts that a ``Response`` instance produced the given ``status_code`` and
+    that ``text`` does not appears in the content of the response.
+
 ``assertFormError(response, form, field, errors)``
     Asserts that a field on a form raises the provided list of errors when
     rendered on the form.
@@ -837,6 +841,12 @@ useful for testing Web applications:
     ``errors`` is an error string, or a list of error strings, that are
     expected as a result of form validation.
 
+``assertTemplateUsed(response, template_name)``
+    Asserts that the template with the given name was used in rendering the
+    response.
+
+    The name is a string such as ``'admin/index.html'``.
+
 ``assertTemplateNotUsed(response, template_name)``
     Asserts that the template with the given name was *not* used in rendering
     the response.
@@ -846,12 +856,6 @@ useful for testing Web applications:
     it redirected to ``expected_url`` (including any GET data), and the subsequent
     page was received with ``target_status_code``.
 
-``assertTemplateUsed(response, template_name)``
-    Asserts that the template with the given name was used in rendering the
-    response.
-
-    The name is a string such as ``'admin/index.html'``.
-
 E-mail services
 ---------------
 

tests/regressiontests/test_client_regress/models.py

@@ -11,12 +11,18 @@ def test_contains(self):
         "Responses can be inspected for content, including counting repeated substrings"
         response = self.client.get('/test_client_regress/no_template_view/')
 
+        self.assertNotContains(response, 'never')
         self.assertContains(response, 'never', 0)
         self.assertContains(response, 'once')
         self.assertContains(response, 'once', 1)
         self.assertContains(response, 'twice')
         self.assertContains(response, 'twice', 2)
 
+        try:
+            self.assertNotContains(response, 'once')
+        except AssertionError, e:
+            self.assertEquals(str(e), "Response should not contain 'once'")
+
         try:
             self.assertContains(response, 'never', 1)
         except AssertionError, e: