Fixed #14503 -- Unified multiple implementations of test cases assert* methods that verify a given exception is raised by a callable throughout the Django test suite.

Replaced them with a new assertRaisesMessage method of a new SimpleTestCase, a lightweight subclass of unittest.TestCase. Both are also available for usage in user tests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16610 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/urlpatterns_reverse/tests.py

@@ -138,21 +138,13 @@ test_data = (
 class NoURLPatternsTests(TestCase):
     urls = 'regressiontests.urlpatterns_reverse.no_urls'
 
-    def assertRaisesErrorWithMessage(self, error, message, callable,
-        *args, **kwargs):
-        self.assertRaises(error, callable, *args, **kwargs)
-        try:
-            callable(*args, **kwargs)
-        except error, e:
-            self.assertEqual(message, str(e))
-
     def test_no_urls_exception(self):
         """
         RegexURLResolver should raise an exception when no urlpatterns exist.
         """
         resolver = RegexURLResolver(r'^$', self.urls)
 
-        self.assertRaisesErrorWithMessage(ImproperlyConfigured,
+        self.assertRaisesMessage(ImproperlyConfigured,
             "The included urlconf regressiontests.urlpatterns_reverse.no_urls "\
             "doesn't have any patterns in it", getattr, resolver, 'url_patterns')