环境1.9.3 3.2.3,3.0以下的rails好像不支持

1. Guardfile

group  :test do
  gem 'guard'
  gem 'guard-rspec'
  gem 'guard-cucumber'
  gem 'guard-livereload'
  gem 'rspec-rails'
  gem 'cucumber-rails'
  gem 'spork'
  gem 'guard-spork'
  gem 'rspec'
  gem 'cucumber'
  gem 'database_cleaner'

gem 'capybara'
  gem 'webrat'
end

现在cucumber不常用，可以去掉了

group :development,:test do
  gem 'guard'
  gem 'guard-rspec'
  gem 'guard-livereload'
  gem 'rspec-rails'
  gem 'spork'
  gem 'guard-spork'
  gem 'rspec'
  gem 'database_cleaner'
  gem 'webrat'
end

2.bundle install

3.guard init

4.

rm -R test 

Guardfile 

guard 'spork',:wait=>60,:cli=>'--drb',rspec  :cli=>"--color --format nested --fail-fast --drb"
cucumber :cli => '-c --drb --port 1234 --profile guard'

5.

rails generate cucumber:install
rails generate rspec:install
spork --bootstrap
spork cucumber --bootstrap

6. rake db:test:prepare

7.http://datacodescotch.blogspot.com/2011/11/warning-cucumber-rails-required-outside.html

8 . 建立项目的时候可以

rails new railtest --skip-test-unit --skip-bundle -d postgresql

9. 不使用test_unit

appication.rb

config.generators do |g|
   g.test_framework :rspec #=> or whatever
end