Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
branch: master
Fetching contributors…

Cannot retrieve contributors at this time

111 lines (75 sloc) 3.586 kb
= Dataset
Dataset provides a simple API for creating and finding sets of data in your database. Check out Dataset::RecordMethods and Dataset::ModelFinders.
Dataset loads data intelligently if you use 'nested contexts' in your tests (RSpec, anything that uses Test::Unit::TestCase subclassing for creating nested contexts):
describe Something do
dataset :a => Dataset :a is loaded (at the right time)
it 'should whatever'
end
describe More do
dataset :b => Dataset :b is loaded. :a data is still there
it 'should'
end
end
describe Another do => Database is restored to :a, without re-running :a logic
it 'should'
end
end
end
The goal is to see a marked improvement in overall test run speed, basing this on the assumption that it is faster to have the OS copy a file or mySQL dump and load. Of course, we may find this to be a false assumption, but there were plenty of bugs in the former 'Scenarios' - addressing that afforded the opportunity to test the assumption.
Dataset does not prevent you from using other libraries like Machinist or factory_girl. If you were to used either of those, you could have a dataset like this:
require 'faker'
class OrganizationsDataset < Dataset::Base
Sham.name { Faker::Name.name }
Organization.blueprint do
name { Sham.name }
end
def load
name_model Organization.make, :org_one
end
end
The benefit is that you can reuse interesting sets of data, without sacrificing the utility of those other libraries.
describe Organization, 'stuff' do
dataset :organizations
end
describe Organization, 'other stuff' do
dataset :organizations
end
Get things installed, then read more in the Dataset documentation at http://aiwilliams.github.com/dataset
== Installation
Install the plugin:
./script/plugin install git://github.com/aiwilliams/dataset.git
In your test_helper.rb/spec_helper.rb:
require 'dataset'
class Test::Unit::TestCase
include Dataset
datasets_directory "#{RAILS_ROOT}/spec/datasets"
end
If you don't use rspec_on_rails, or you have specs that aren't of the RailsExampleGroup type, you should do this in spec_helper.rb:
require 'dataset'
class Spec::Example::ExampleGroup
include Dataset
datasets_directory "#{RAILS_ROOT}/spec/datasets"
end
If you were a user of the Scenarios plugin, and want to do as little as possible to get going (assumes you are using rspec_on_rails):
require 'dataset'
Scenario = Scenarios = Dataset
class Test::Unit::TestCase
include Dataset
class << self
alias_method :scenario, :dataset
end
end
class ScenariosResolver < Dataset::DirectoryResolver
def suffix
@suffix ||= 'Scenario'
end
end
Dataset::Resolver.default = ScenariosResolver.new("#{RAILS_ROOT}/spec/scenarios")
== Credits
Written by [Adam Williams](http://github.com/aiwilliams).
Contributors:
- [Saturn Flyer](http://www.saturnflyer.com) [github](http://github.com/saturnflyer)
- [Steve Iannopollo](http://github.com/siannopollo)
- [John Long](http://github.com/jlong)
---
Dataset is released under the MIT-License and is Copyright (c)2008 Adam Williams.
Jump to Line
Something went wrong with that request. Please try again.