How can I use Factory Boy for advanced testing in Django?

How can I use Factory Boy for advanced testing in Django?

Factory Boy is a powerful library for creating test data in Django. You can define complex models and relationships easily.

Can you show me an example of creating a user with related profile data?

Sure! You can create a user and a profile like this:

from factory import DjangoModelFactory, SubFactory

class UserFactory(DjangoModelFactory):
    class Meta:
        model = 'auth.User'

class ProfileFactory(DjangoModelFactory):
    user = SubFactory(UserFactory)
    bio = 'This is a bio.'

# Usage
profile = ProfileFactory()

What if I want to add custom fields to my user model?

You can extend the User model by creating a custom user model and then using Factory Boy to create instances of that model.

How do I handle unique fields when generating data?

You can use the Faker library with Factory Boy to generate unique values. For example, use Faker.unique.email() for unique emails.