old_contents: from django.contrib.auth.models import User
  from django.db import IntegrityError
  from django.test import TestCase
  
  from app.accounts.models import UserProfile
  
  
  class UserProfileTest(TestCase):
      """Test UserProfile model"""
  
      def setUp(self):
          self.user = User.objects.create(username='frank', password='secret')
          UserProfile.objects.create(user=self.user)
  
      def test_user_can_only_have_one_profile_entry(self):
          profile = UserProfile(user=self.user, custom_auth_id='134664323567')
  
          self.assertRaises(IntegrityError, profile.save)
  
new_contents: from django.contrib.auth.models import User
  from django.db import IntegrityError
  from django.test import TestCase
  
  from app.accounts.models import UserProfile
  
  
  class UserProfileTest(TestCase):
      """Test UserProfile model"""
  
      def setUp(self):
          self.user = User.objects.create(username='frank', password='secret')
  
      def test_user_can_only_have_one_profile_entry(self):
          profile = UserProfile(user=self.user, custom_auth_id='134664323567')
          self.assertRaises(IntegrityError, profile.save)
  
      def test_profile_is_created_on_user_creation(self):
          user_profile = UserProfile.objects.get(user=self.user)
          self.assertEqual(user_profile.user, self.user)
  
subject: Add test for creating profile on user creation