How can I use Factory Bot for advanced testing scenarios in Rails?

How can I use Factory Bot for advanced testing scenarios in Rails?

You can use Factory Bot to create complex objects with associations, traits, and sequences for more realistic test data.

Can you give me an example of using traits in Factory Bot?

Sure! You can define traits in your factory like this: trait :admin do role { 'admin' } end. Then, you can create an admin user with create(:user, :admin).

What about using sequences? How do they work?

Sequences allow you to generate unique values. For example, you can define a sequence for email: sequence(:email) { |n| "user#{n}@example.com" }.

Is it possible to create nested associations?

Yes, you can create nested associations by defining them in your factory. For example, factory :post do association :user end.