wercker.yml

box: wercker/ubuntu12.04-ruby1.9.3
services:
    - wercker/postgresql
build:
    # The steps that will be executed on build
    steps:
        # Install (apt-get) package foo and bar
        - install-packages:
            packages: build-essential
        # A step that executes `bundle install` command
        - bundle-install
        # A step that prepares the database.yml with settings from the database you defined in services
        - rails-database-yml:
            service: postgresql
        # A custom script step, name value is used in the UI
        # and the code value contains the command that get executed
        - script:
            name: echo ruby information
            code: |
              echo "ruby version $(ruby --version) running"
              echo "from location $(which ruby)"
              echo -p "gem list: $(gem list)"
        #migrations
        - script:
            name: rake
            code: bundle exec rake db:migrate RAILS_ENV=test
        # Run forest Run
        - script:
            name: rspec
            script: bundle exec rspec