test_dummy¶ ↑

Test Dummy is an easy fake data generator library with the ability to create fake models or entirely faked data structures on-demand.

After installing the gem, methods to declare how to fake data are made available within ActiveRecord-derived models. There are several ways to declare how to dummy something:

class MyModel < ActiveRecord::Base
  # Pass a block that defines how to dummy this attribute
  dummy :name do
    "user%d" % rand(10e6)
  end

  # Pass a block that defines how to dummy several attributes
  dummy :password, :password_confirmation do
    'tester'
  end

  # Use one of the pre-defined helper methods to dummy this attribute
  dummy :nickname, :use => :random_phonetic_string
end

Dummy configuration can also be stored in test/dummy to avoid cluttering your models up with generators. An equivalent external declaration would look like this:

TestDummy.declare(MyModel) do
  dummy :name do
    "user%d" % rand(10e6)
  end

  dummy :password, :password_confirmation do
    'tester'
  end

  dummy :nickname, :use => :random_phonetic_string
end

The name of the test/dummy file should be the same as the main model defined in app/models. For instance, app/models/my_model.rb would have a corresponding test/dummy/my_model.rb that would be loaded as required.

Copyright¶ ↑

Copyright © 2010 Scott Tadman, The Working Group