Fixed #9383 -- Don't open a network connection for sending email if there's

nothing to send. Saves a bit of time when, for example, processing 500-error
emails with no ADMINs configured. Based on a patch from Jesse Young.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9248 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/mail/tests.py

@@ -2,7 +2,9 @@
 r"""
 # Tests for the django.core.mail.
 
->>> from django.core.mail import EmailMessage
+>>> from django.conf import settings
+>>> from django.core import mail
+>>> from django.core.mail import EmailMessage, mail_admins, mail_managers
 >>> from django.utils.translation import ugettext_lazy
 
 # Test normal ascii character case:
@@ -60,4 +62,30 @@ BadHeaderError: Header values can't contain newlines (got u'Subject\nInjection T
 >>> email.message().as_string()
 'Content-Type: text/plain; charset="utf-8"\nMIME-Version: 1.0\nContent-Transfer-Encoding: quoted-printable\nSubject: subject\nFrom: from@example.com\nTo: to@example.com\ndate: Fri, 09 Nov 2001 01:08:47 -0000\nMessage-ID: foo\n\ncontent'
 
+# Test that mail_admins/mail_managers doesn't connect to the mail server if there are no recipients (#9383)
+
+>>> old_admins = settings.ADMINS
+>>> old_managers = settings.MANAGERS
+>>> settings.ADMINS = []
+>>> settings.MANAGERS = []
+>>> mail.outbox = []
+>>> mail_admins('hi','there')
+>>> len(mail.outbox)
+0
+>>> mail.outbox = []
+>>> mail_managers('hi','there')
+>>> len(mail.outbox)
+0
+>>> settings.ADMINS = settings.MANAGERS = [('nobody','nobody@example.com')]
+>>> mail.outbox = []
+>>> mail_admins('hi','there')
+>>> len(mail.outbox)
+1
+>>> mail.outbox = []
+>>> mail_managers('hi','there')
+>>> len(mail.outbox)
+1
+>>> settings.ADMINS = old_admins
+>>> settings.MANAGERS = old_managers
+
 """