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POTesting python methods that call class methods
 

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  1. POTesting python methods that call class methods
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    <p>I have a very simple method:</p> <pre><code>Class Team(models.Model): def sides(self): return SideNames.objects.filter(team=self) </code></pre> <p>SideNames is another model defined in the same file as Team, </p> <p>Which when I try and test:</p> <pre><code>self.assertEquals(len(t.sides()), 2) </code></pre> <p>I get the following error:</p> <blockquote> <pre><code>return SideNames.objects.filter(team=self) </code></pre> <p>AttributeError: 'NoneType' object has no attribute 'objects'</p> </blockquote> <p>but if I change the test to be</p> <pre><code>self.assertEquals(len(SideNames.objects.filter(team=t)), 2) </code></pre> <p>Then I don't get the error. What's the difference between calling SideNames.objects.filter from the test itself and calling the actual method?</p> <p>For reference, here are the 2 classes in their entirety.</p> <pre><code>class Team(models.Model): """The model for a football team.""" class Admin: pass def __unicode__(self): return u'%s' % self.name def is_player(self, player): """Checks to see if 'player' is a member if this team. Returns True if they are, or False otherwise.""" try: teamPlayer = TeamPlayers.objects.get(player=player, team=self) return True except ObjectDoesNotExist: return False def sides(self): """Return the side names for this team""" return SideNames.objects.filter(team=self) def updateSides(self, side_a, side_b): """Update the side names""" names = SideNames.objects.filter(team=self); a = SideNames.objects.get(name = names[0].name) a.name = side_a a.save() b = SideNames.objects.get(name = names[1].name) b.name = side_b b.save() name = models.CharField("Team Name", max_length=255) organiser = models.ForeignKey(User) class SideNames(models.Model): """Holds the names of the sides for each team""" class Admin: pass def __unicode__(self): """Pretty print the SideNames object""" return self.name team = models.ForeignKey(Team) name = models.CharField(max_length=128) </code></pre>
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    1. USStuart Grimshaw
    1. USStuart Grimshaw
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      1. VTDownMod
    1. CO`sides` is a method, not a class method.
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      1. POTesting python methods that call class methods
      1. USMike Graham
 

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