#24827: assertRaisesMessage() fails with Python 2.7.10~rc1
-----------------------------------+--------------------
     Reporter:  rhertzog           |      Owner:  nobody
         Type:  Uncategorized      |     Status:  new
    Component:  Testing framework  |    Version:  1.8
     Severity:  Normal             |   Keywords:
 Triage Stage:  Unreviewed         |  Has patch:  0
Easy pickings:  0                  |      UI/UX:  0
-----------------------------------+--------------------
 Currently Debian Unstable has Python 2.7.10~rc1 and the Django test suite
 is falling apart since all calls to assertRaisesMessage() fail. All those
 errrors are gone when I run the test in Debian 8 Jessie with Python 2.7.9.

 I'm not sure if it's a Python bug or a Django bug.

 Here are two examples of failures in the test suite:

 {{{
 ======================================================================
 ERROR: test_avoid_infinite_loop_on_too_many_subqueries
 (queries.tests.Queries1Tests)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "/«PKGBUILDDIR»/tests/queries/tests.py", line 393, in
 test_avoid_infinite_loop_on_too_many_subquer
 ies
     with self.assertRaisesMessage(RuntimeError, msg):
   File "/«PKGBUILDDIR»/django/test/testcases.py", line 582, in
 assertRaisesMessage
     re.escape(expected_message), callable_obj, *args, **kwargs)
   File "/«PKGBUILDDIR»/django/utils/six.py", line 643, in
 assertRaisesRegex
     return getattr(self, _assertRaisesRegex)(*args, **kwargs)
   File "/usr/lib/python2.7/unittest/case.py", line 995, in
 assertRaisesRegexp
     callable_obj(*args, **kwargs)
 TypeError: 'NoneType' object is not callable

 ======================================================================
 FAIL: test_recipients_as_string (mail.tests.MailTests)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "/«PKGBUILDDIR»/tests/mail/tests.py", line 115, in
 test_recipients_as_string
     with self.assertRaisesMessage(TypeError, '"to" argument must be a list
 or tuple'):
   File "/«PKGBUILDDIR»/django/test/testcases.py", line 582, in
 assertRaisesMessage
     re.escape(expected_message), callable_obj, *args, **kwargs)
   File "/«PKGBUILDDIR»/django/utils/six.py", line 643, in
 assertRaisesRegex
     return getattr(self, _assertRaisesRegex)(*args, **kwargs)
 AssertionError: "\"to\"\ argument\ must\ be\ a\ list\ or\ tuple" does not
 match "'NoneType' object is not callable"
 }}}

--
Ticket URL: <https://code.djangoproject.com/ticket/24827>
Django <https://code.djangoproject.com/>
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