Factory Boy for test data in Django - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Factory Boy used for in Django testing?

Factory Boy helps create test data easily by defining blueprints (factories) for your models. It saves time and keeps tests clean.

beginner

How do you define a simple Factory Boy factory for a Django model?

You create a class inheriting from <code>factory.django.DjangoModelFactory</code> and set the model inside a <code>class Meta</code>. Then define fields with default values.

beginner

What method do you call to create and save an instance using Factory Boy?

Use FactoryClass.create() to make and save an instance to the database.

intermediate

How can Factory Boy help with related models in Django?

You can use SubFactory to create related model instances automatically when creating the main model instance.

beginner

Why is Factory Boy better than manually creating test data in Django tests?

Factory Boy reduces repetitive code, makes test data consistent, and improves test readability and maintenance.

Which class should a Factory Boy factory inherit from for Django models?

A factory.ModelFactory

B factory.Factory

C django.test.TestCase

D factory.django.DjangoModelFactory

For Django models, factories inherit from factory.django.DjangoModelFactory to integrate with Django ORM.

What does the create() method do in Factory Boy?

A Creates and saves an instance to the database

B Only creates an instance without saving

C Deletes a test instance

D Updates an existing instance

create() makes a new instance and saves it to the database.

How do you define a related model inside a Factory Boy factory?

A Using SubFactory

B Using ForeignKeyField

C Using RelatedFactory

D Using RelatedModel

SubFactory is used to create related model instances automatically.

Which of these is NOT a benefit of using Factory Boy?

A Improves test readability

B Reduces repetitive test data code

C Automatically runs tests

D Keeps test data consistent

Factory Boy helps with test data but does not run tests automatically.

Where do you specify the Django model inside a Factory Boy factory?

A As a class attribute named model_class

B Inside the Meta class as model

C In the factory's __init__ method

D In the factory's create method

The Django model is set inside a nested Meta class as the model attribute.

Explain how to create a Factory Boy factory for a Django model and use it to generate test data.

Think about the class structure and how to call the factory.

Describe how Factory Boy handles related models when creating test data in Django.

Focus on how factories connect to other factories.