diff --git a/tests/regressiontests/m2m_through_regress/models.py b/tests/regressiontests/m2m_through_regress/models.py
index 56aecd6..ec87985 100644
--- a/tests/regressiontests/m2m_through_regress/models.py
+++ b/tests/regressiontests/m2m_through_regress/models.py
@@ -1,8 +1,10 @@
 from datetime import datetime
+
 from django.contrib.auth.models import User
 from django.core import management
 from django.db import models
 
+
 # Forward declared intermediate model
 class Membership(models.Model):
     person = models.ForeignKey('Person')
@@ -51,159 +53,3 @@ class Through(ThroughBase):
 class B(models.Model):
     b_text = models.CharField(max_length=20)
     a_list = models.ManyToManyField(A, through=Through)
-
-
-__test__ = {'API_TESTS':"""
-# Create some dummy data
->>> bob = Person.objects.create(name='Bob')
->>> jim = Person.objects.create(name='Jim')
-
->>> rock = Group.objects.create(name='Rock')
->>> roll = Group.objects.create(name='Roll')
-
->>> frank = User.objects.create_user('frank','frank@example.com','password')
->>> jane = User.objects.create_user('jane','jane@example.com','password')
-
-# Now test that the forward declared Membership works
->>> Membership.objects.create(person=bob, group=rock)
-<Membership: Bob is a member of Rock>
-
->>> Membership.objects.create(person=bob, group=roll)
-<Membership: Bob is a member of Roll>
-
->>> Membership.objects.create(person=jim, group=rock)
-<Membership: Jim is a member of Rock>
-
->>> bob.group_set.all()
-[<Group: Rock>, <Group: Roll>]
-
->>> roll.members.all()
-[<Person: Bob>]
-
-# Error messages use the model name, not repr of the class name
->>> bob.group_set = []
-Traceback (most recent call last):
-...
-AttributeError: Cannot set values on a ManyToManyField which specifies an intermediary model.  Use m2m_through_regress.Membership's Manager instead.
-
->>> roll.members = []
-Traceback (most recent call last):
-...
-AttributeError: Cannot set values on a ManyToManyField which specifies an intermediary model.  Use m2m_through_regress.Membership's Manager instead.
-
->>> rock.members.create(name='Anne')
-Traceback (most recent call last):
-...
-AttributeError: Cannot use create() on a ManyToManyField which specifies an intermediary model.  Use m2m_through_regress.Membership's Manager instead.
-
->>> bob.group_set.create(name='Funk')
-Traceback (most recent call last):
-...
-AttributeError: Cannot use create() on a ManyToManyField which specifies an intermediary model.  Use m2m_through_regress.Membership's Manager instead.
-
-# Now test that the intermediate with a relationship outside
-# the current app (i.e., UserMembership) workds
->>> UserMembership.objects.create(user=frank, group=rock)
-<UserMembership: frank is a user and member of Rock>
-
->>> UserMembership.objects.create(user=frank, group=roll)
-<UserMembership: frank is a user and member of Roll>
-
->>> UserMembership.objects.create(user=jane, group=rock)
-<UserMembership: jane is a user and member of Rock>
-
->>> frank.group_set.all()
-[<Group: Rock>, <Group: Roll>]
-
->>> roll.user_members.all()
-[<User: frank>]
-
-# Regression test for #8134 --
-# m2m-through models shouldn't be serialized as m2m fields on the model.
-
-# First, clean up a lot of objects we don't need.
-# The serialization test only requires three objects to work -
-# one for each end of the m2m, plus the through model.
-
->>> User.objects.all().delete()
->>> UserMembership.objects.all().delete()
->>> frank.delete()
->>> rock.delete()
->>> jim.delete()
-
-# Dump the current contents of the database as a JSON fixture
->>> management.call_command('dumpdata', 'm2m_through_regress', format='json', indent=2)
-[
-  {
-    "pk": 2,
-    "model": "m2m_through_regress.membership",
-    "fields": {
-      "person": 1,
-      "price": 100,
-      "group": 2
-    }
-  },
-  {
-    "pk": 1,
-    "model": "m2m_through_regress.person",
-    "fields": {
-      "name": "Bob"
-    }
-  },
-  {
-    "pk": 2,
-    "model": "m2m_through_regress.group",
-    "fields": {
-      "name": "Roll"
-    }
-  }
-]
-
-# Check the XML serializer too, since it doesn't use the common implementation
->>> management.call_command('dumpdata', 'm2m_through_regress', format='xml', indent=2)
-<?xml version="1.0" encoding="utf-8"?>
-<django-objects version="1.0">
-  <object pk="2" model="m2m_through_regress.membership">
-    <field to="m2m_through_regress.person" name="person" rel="ManyToOneRel">1</field>
-    <field to="m2m_through_regress.group" name="group" rel="ManyToOneRel">2</field>
-    <field type="IntegerField" name="price">100</field>
-  </object>
-  <object pk="1" model="m2m_through_regress.person">
-    <field type="CharField" name="name">Bob</field>
-  </object>
-  <object pk="2" model="m2m_through_regress.group">
-    <field type="CharField" name="name">Roll</field>
-  </object>
-</django-objects>
-
-## Regression test for #8046:
-Check that we don't involve too many copies of the intermediate table when
-doing a join.
-
->>> bob = Person.objects.create(name='Bob')
->>> jim = Person.objects.create(name='Jim')
->>> rock = Group.objects.create(name='Rock')
->>> roll = Group.objects.create(name='Roll')
->>> _ = Membership.objects.create(person=bob, group=rock)
->>> _ = Membership.objects.create(person=jim, group=rock, price=50)
->>> _ = Membership.objects.create(person=bob, group=roll, price=50)
->>> rock.members.filter(membership__price=50)
-[<Person: Jim>]
-
-## Regression test for #8254
->>> bob.group_set.filter(membership__price=50)
-[<Group: Roll>]
-
-## Regression test for #9804
-# Flush the database, just to make sure we can.
->>> management.call_command('flush', verbosity=0, interactive=False)
-
-## Regression test for #11107
-Ensure that sequences on m2m_through tables are being created for the through
-model, not for a phantom auto-generated m2m table.
-
->>> management.call_command('loaddata', 'm2m_through', verbosity=0)
->>> management.call_command('dumpdata', 'm2m_through_regress', format='json')
-[{"pk": 1, "model": "m2m_through_regress.usermembership", "fields": {"price": 100, "group": 1, "user": 1}}, {"pk": 1, "model": "m2m_through_regress.person", "fields": {"name": "Guido"}}, {"pk": 1, "model": "m2m_through_regress.group", "fields": {"name": "Python Core Group"}}]
-
-"""}
