mlapshin / famili

Yet another ObjectMother pattern implementation for rails testing

Famili¶ ↑

Yet Another ObjectMother pattern implementation for rails testing

Why¶ ↑

We meet some problems with factory-girl:

• We require quite complex logic for creation of test models

• We require use factories with running rails application for integration tests

• So why don’t make factory just another class in rails lib, and get extensibility of factories/mothers and rails lazy loading and dependency management?

Example ¶ ↑

To define factory/mother for model User just create class in your lib directory:

#lib/famili/user.rb`

module Famili
   class User < Mother
     fist_name { 'nicola' }
     last_name { 'nicola' }
     email     { "#{last_name}@mail.lv" } 

     def before_save(user)
         #...
     end

     def after_create(user)
         #...
     end
   end
 end

 #lib/famili/article

 module Famili
   class Article < Mother
     #creating association
     user  { Famili::User.create }
     title { "article by #{user.last_name}" }
   end
 end

And u can use it anywhere in tests or controllers:

Famili::User.create(:fist_name=>'Override') # create model
Famili::User.build(:fist_name=>'Override')  # build model not saving
Famili::User.hash(:fist_name=>'Override')   #get attributes hash

Famili::Article.create #create article with user

Inheritance ¶ ↑

U can inherite mothers just like plain ruby classes, Just think each declaration field_name {…} as method definition

module Famili
  class User < Mother
    name { "nicola" }
  end

  class Person < User 
    email { "#{name}@emial.com" }
  end
end

Mother methods¶ ↑

Mother have some usable methods, which can be used

module Famili
  class User < Mother
    last_name { 'nicola' }
    login { "#{last_name}_#{unique}" } 
    number { sequence_number }
  end 
end

• sequence_number - incremented with each instance

• unique - just unique string

• we a planing add more

Nutshell¶ ↑

each declaration

field_name { block }

just create method

def field_name
end

and register attribuite to copy in model

field :field_name

Install¶ ↑

in config/environment.rb:

config.gem 'famili'

and then

sudo rake gems:install

FEATURES¶ ↑

CHANGE LOG:¶ ↑

• 0.0.1 - created

• 0.0.2 - add inheritance, and mother methods [unique,sequence_number]

• 0.0.3 - fix Mother.create call model.save!; Mother.hash return symbolized hash

• 0.0.5 - add raise NoMethodError if property declared without block (becose it is error-prone), fix Famili::Mother.class#name method

• 0.0.6 - rename Mother#hash to Mother#build_hash (to avoid conflicts with Object#hash in Ruby 1.9). Old name keeped as alias when using with oldest versions of Ruby for backward compatibility.

TODO ¶ ↑

• generators

LICENSE:¶ ↑

(The MIT License)

Copyright © 2010 niquola

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ‘Software’), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED ‘AS IS’, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.