```ruby
ENV['RAILS_ENV'] = 'test'
ENV['RAILS_ROOT'] ||= File.dirname(__FILE__) + '/../../../..'

# Load the testing framework
require File.expand_path(File.join(ENV['RAILS_ROOT'], 'config/environment.rb'))
require 'test_help'
```

Add optional redgreen gem for testing
user
```ruby
ENV['RAILS_ENV'] = 'test'
ENV['RAILS_ROOT'] ||= File.dirname(__FILE__) + '/../../../..'

# Load the testing framework
require File.expand_path(File.join(ENV['RAILS_ROOT'], 'config/environment.rb'))
require 'test_help'

# Optional gems
begin
  require 'redgreen'
rescue LoadError
end
```
assistant