How can I use Factory Boy for testing in Python?

How can I use Factory Boy for testing in Python?

Factory Boy is a flexible and easy-to-use library for creating test data in Python. You can define factories for your models and use them to generate instances for testing.

Can you show me a simple example of a factory?

Sure! Here's a basic example:

from factory import Factory, Faker

class UserFactory(Factory):
    class Meta:
        model = User  # Your model here

    username = Faker('user_name')
    email = Faker('email')

This creates a UserFactory that generates user instances with random usernames and emails.

How do I use this factory in my tests?

You can use the factory in your test cases like this:

user = UserFactory()
assert user.username is not None
assert user.email is not None

This will create a user instance with random data for testing.

What if I want to customize the data?

You can customize the data by passing parameters when creating an instance:

user = UserFactory(username='custom_user')

This will create a user with the username 'custom_user'.