```ruby
if RAILS_ENV.eql? 'test'
  require File.join(File.dirname(__FILE__), "lib", "should_b")
end
```

Load the random_characters helper in the console.
user
```ruby
if RAILS_ENV.eql? 'test'
  require File.join(File.dirname(__FILE__), "lib", "should_b")
end

if $0 == 'irb'
  require 'should_b/random_characters'
  include ShouldB::RandomCharacters
end
```
assistant