How to auto-load data in the test database before to test my application?

问题

I am using Ruby on Rails 3.0.9 and RSpec 2. I would like to auto-load seed data in the test database before I tesst my application. That is, at the testing start up time (when I run tests) I would like to "auto-populate"\"auto-boot" the test database.

How can I populate the database with seed data?

---

P.S.: As I read around, (maybe) I should populate the test database by adding some code to the /spec/spec_helper.rb file... but what code and how?

In my task/custom.rake file I have:

namespace :test do
  desc "Boot database"
  task :boot => [:load, :seed] do
  end

  desc "Reboot database"
  task :reboot => [:purge, :boot] do
  end
end

回答1:

If you'd like to just invoke the seed rake task, I'd do something like this:

ENV['RAILS_ENV'] = 'test'
Rake::Task["db:seed"].invoke

But, I'd recommend using Fixtures (http://guides.rubyonrails.org/testing.html#the-low-down-on-fixtures).

Or even better a fixture replacement like Factory Girl (https://github.com/thoughtbot/factory_girl), whereby you can load dummy data with all the associated data. This is a much less brittle approach.

来源：https://stackoverflow.com/questions/7459135/how-to-auto-load-data-in-the-test-database-before-to-test-my-application