Update the widget test to ensure the button is there

Author: jbradberry

tests/tests/tests.py

@@ -257,6 +257,7 @@ def test_better_readonly_password_widget(self):
         form = UserChangeForm(instance=user)
 
         self.assertIn(_('*************'), form.as_table())
+        self.assertIn('<a class="button"', form.as_table())
 
 
 class UserAdminTest(TestCase):