Rorem

Rorem is a random data generator that automatically fill Ruby classes with Random data, here's how:

class Car

include Rorem::Model

attr_accessor :brand, :seats, :owner_name, :owner_age, :special_car

end

Car.factory do |car|

# all brands are equality likely
car.brand = random(%w(BMW Mercedes Volvo Jaguar))

# assign probabilities to each value
car.seats = random([2, 4], :distribution => [0.2, 0.8])

# use a normal distribution to describe probabilities
car.owner_age = random(18..70, :distribution => normal(40, 15))

# generate a name from rorem's database of names
car.owner_name = random(:name

# a deterministic value can be set
car.special_car false

end

c = Car.new

c.fill

c.brand #=> 'BMW' c.seats #=> 4 c.owner_age #=> 27 c.owner_name #=> 'Allan Hernandez' c.special_car #=> false

another (more complex) example

class Employee

include Rorem::Model

attr_accessor :first_name, :last_name, :email, :employee_nr, :empolyee_id, :address, :city, :country

end

Employee.factory do

c.employee_nr = sequence(:employee_nr, :start => 1)

person = random(:person, :unique => true)
location = random(:location)

c.first_name = person.first_name
c.last_name = person.last_name
c.email = person.email
c.address = location.address
c.city = location.city
c.country = location.country

c.employee_id = c.first_name[1..3] + c.last_name[1..4] + c.employee_nr.to_s

end