test_hash_missing_required_attrs failing

[Paul Howarth]

When running the whole test suite via "python setup.py test", the newly-added (in 3.6.5) test_hash_missing_required_attrs test fails:

======================================================================
FAIL: test_hash_missing_required_attrs (zope.interface.tests.test_interface.InterfaceTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/builddir/build/BUILD/zope.interface-3.6.5/src/zope/interface/tests/test_interface.py", line 420, in test_hash_missing_required_attrs
    self.assertEqual(len(warned), 1)
AssertionError: 0 != 1
----------------------------------------------------------------------
Ran 167 tests in 0.209s
FAILED (failures=1)

Attached patch fixes the problem for me by ensuring that no warnings are filtered.

[Tres Seaver (tseaver)]

Thanks for the catch: the tests all passed when run under the buildout's
'test' command.

I will apply your fix, moving the 'setfilters' call inside the
'with catch_warnings' statement, so that any previous settings get
restored.

[Tres Seaver (tseaver)]

http://svn.zope.org/zope.interface/trunk/?rev=122565&view=rev

[Paul Howarth (paul-nat)]

Thanks; just one additional point: the use of "with" in this test breaks the test suite for python 2.4 (it passes otherwise). I guess that's not a big deal as nobody using the latest release is likely to be using python 2.4 now.