1 class SomeManager(models.Manager):
2     def future(self):
3         return self.get_query_set().filter(pub_date__gte=datetime.today())
4 
5 class SomeClass(models.Model):
6     pub_date = models.DateField()
7     objects = SomeManager()

1 class SomeManagerTest(TestCase):
2     fixtures = "some_fixtures.json"
3 
4     def test_future_method(self):
5         self.assertEqual(4, SomeClass.objects.future().count())

 1 from fixture_generator import fixture_generator
 2 
 3 from events.models import EventCategory, Event
 4 from django.contrib.auth.models import User, Group
 5 
 6 @fixture_generator(User, requires=["events.test_categories"])
 7 def test_users():
 8     festival, tasting = EventCategory.objects.order_by("name")
 9     fortnights_festival = Event.objects.create(
10             title="Beer Fest",
11             start_date=datetime.today() - timedelta(days=14),
12             category=festival)
13     tomorrows_tasting = Event.objects.create(
14             title="Tripel Tasting",
15             start_date=datetime.today() + timedelta(days=1),
16             category=tasting)
17 
18 @fixture_generator(Category)
19 def test_categories():
20     EventCategory.objects.create(name="Tasting")
21     EventCategory.objects.create(name="Festival")

 1 class Event(models.Model):
 2     title = models.CharField(max_length=100)
 3     start_date = models.DateField(default=datetime.today())
 4     description = models.TextField()
 5 
 6 class EventTestCase(TestCase):
 7     def setUp(self):
 8         yesterday = datetime.today() - timedelta(days=1)
 9         tomorrow = datetime.today() + timedelta(days=1)
10         old_event = any_model(Event, start_date=yesterday)
11         current_event = any_model(Event)
12         future_event = any_model(Event, start_date=tomorrow)

 1 class MyGeneratorMixin(object):
 2     def get_category(self, name=""):
 3         return CategoryModel.objects.create(name=name)
 4 
 5     def get_event(self, title, start_date):
 6         return EventModel.objects.create(start_date=start_date,
 7                 title=title, category=self.get_category())
 8 
 9     def setUp(self):
10         yesterday = datetime.today() - timedelta(days=1)
11         tomorrow = datetime.today() + timedelta(days=1)
12         old_event = self.get_event("Old event", start_date=yesterday)
13         future_event = self.get_event("Old event", start_date=tomorrow)
14 
15 class ModelTestCase(MyGeneratorMixin, TestCase):
16     ...
17 
18 class ViewModelTestCase(MyGeneratorMixin, TestCase):
19     ...
20 
21 class FormsTestCase(MyGeneratorMixin, TestCase):
22     ...