She’s just a factory girl, Living in an Active Record World

Lazy Attributes

For instance, if we had an attribute called formula_name….

formula_name ‘Formula One’

But we want to use Faker to randomly generate it…

formula_name Faker::Lorem.characters(10)

However if we create two formulas they would have the same name…enter lazy attributes

formula_name { Faker::Lorem.characters(10) }

Dependent Attributes

factory :user do
	first_name "John"
	last_name  "Doe"
	email { "#{first_name}.#{last_name}@example.com" }
end

Transient Attributes

Static and dynamic attributes can be ignored.

Provide the name of the attribute to ignore and a default value.

transient do
  quality ''
  entity ''
end

You can access ignored attributes in the factory body.

The default value is only important if you are using the attribute in a dependent attribute

Inheritance

This can be done, by simply nesting a factory under another

factory :user do
	first_name "John"
	last_name  "Doe"

	factory :validated_user
		email { "#{first_name}.#{last_name}@example.com" }
	end
end

Associations

##TODO

Traits

Callbacks

after(:build) 
before(:create) 
after(:create) 
after(:stub)