Test rails generator (rails g generator tester)

tester_generator.rb

#./lib/generators/tester
# shows in generator list as 

class TesterGenerator < Rails::Generators::NamedBase
  source_root File.expand_path('../templates', __FILE__)
end

# $ rails g
# Usage: rails generate GENERATOR [args] [options]
#
# ...
# 
# Tester:
#   tester

module Blah
  class TesterGenerator < Rails::Generators::NamedBase
    source_root File.expand_path('../templates', __FILE__)
  end
end

# $ rails g
# Usage: rails generate GENERATOR [args] [options]
#
# ...
#