I have a models.py like so:

from django.db import models
from django.contrib.auth.models import User
from datetime import datetime


class UserProfile(models.Model):
    user = models.OneToOneField(User)

    def __unicode__(self):
        return self.user.username


class Project(models.Model):
    user = models.ForeignKey(UserProfile)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)
    product = models.ForeignKey('tool.product')
    module = models.ForeignKey('tool.module')
    model = models.ForeignKey('tool.model')
    zipcode = models.IntegerField(max_length=5)

    def __unicode__(self):
        return unicode(self.id)

And my tests.py:

from django.test import TestCase, Client
# --- import app models
from django.contrib.auth.models import User
from tool.models import Module, Model, Product
from user_profile.models import Project, UserProfile


# --- unit tests --- #
class UserProjectTests(TestCase):

    fixtures = ['admin_user.json']

    def setUp(self):
        self.product1 = Product.objects.create(
            name='bar',
        )
        self.module1 = Module.objects.create(
            name='foo',
            enable=True
        )
        self.model1 = Model.objects.create(
            module=self.module1,
            name='baz',
            enable=True
        )
        self.user1 = User.objects.get(pk=1)

    ...

    def test_can_create_project(self):
        self.project1 = Model.objects.create(
            user=self.user1,
            product=self.product1,
            module=self.module1,
            model=self.model1,
            zipcode=90210
        )

        self.assertEquals(self.project1.zipcode, 90210)

But I get a TypeError: 'product' is an invalid keyword argument for this function error.

I'm not sure what is failing but I'm guessing something to do with the FK relationships...

Any help would be much appreciated.