I can't work this one out. I have a blind spot. Any help appreciated.
My unit tests indicate a problem with the following method (is_current)
on a model. Because I couldn't figure it out I instrumented with a whole
mess of print statements. The problem occurs on the line with
self.quality_tag. Note the print statement before and after ...
def is_current(self):
current = self.effective and self.effective <= when()
print('\n%s %s - when = %s' %(current, self.effective, when()))
print('\n%s - 1 quality_tag = %s' % (current, self.quality_tag))
current = current and (self.quality_tag is None)
print('\n%s - 2 quality_tag = %s' % (current, self.quality_tag))
current = current and not self.withdrawn
print('\n%s - withdrawn = %s' %(current, self.withdrawn))
return current
Here is the unit test output ... which seems to indicate there is a bug
in (my) boolean logic where (self.quality_tag is None) returns False
instead of True when self.quality_tag really *is* None
True 2013-06-07 03:18:14.418000+00:00 - when = 2013-06-07
03:18:15.231000+00:00
True - 1 quality_tag = None
False - 2 quality_tag = None
False - withdrawn = False
F
======================================================================
FAIL: test_attach_current (items.tests.test_utils.TestAttach)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\users\miked\py\xxx_project\xxx\items\tests\test_utils.py",
line 272, in test_attach_current
self.assertEqual(obj.is_current(), True)
AssertionError: False != True
----------------------------------------------------------------------
Windows XP
Python 2.7
Django 1.5
Thanks
Mike
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