FactoryGirl association for membership and role

Question

I have a rails structure of a user that's something like this:

User.create(
  email: 'asdf@test.com', 
  password: 'testtest', 
  password_confirmation: 'testtest'
).memberships.create(
  role_id: 1
)

Where,

Role.create(
  name: 'admin'
)

How can I create this association in FactoryGirl?

Models:

User.rb

has_many :memberships
has_many :roles, through: :memberships

Membership.rb

belongs_to :user
belongs_to :role, dependent: :destroy

Role.rb

has_many :memberships, dependent: :destroy
has_many :users, through: :memberships

Answer 1

It depends on the associations you use. Here is an example for a has many association

factory :user do
  email                 "asdf@test.com"
  password              "testtest" 
  password_confirmation "testtest"
  role
end

which creates the user and with the call of 'role' the association will be set

factory :role do 
  name "admin"
end

regarding your comment, try this:

factory :user do
  email                 "asdf@test.com"
  password              "testtest" 
  password_confirmation "testtest"
  role
end

factory :role do 
  name "admin"
end

factory :membership do
  user
  role
end

Answer 2

This is how you would use child factories to model this while maintaining admin and non-admin factories

factory :user do
  sequence(:email) { |n| "user#{n}@rmail.com" }
  password "supersecret"
  password_confirmation { |u| u.password }
  factory :admin do
    admin_membership
  end
end
factory :membership do
  user
  role
  factory :admin_membership do
    admin_role
  end
end
factory :role do
  name "role"
  factory :admin_role do
    name "admin"
  end
end