Read a Rails model file and print to stdout an rspec describe block for each method

generate_test.rb

def warn_and_exit
    puts "Prints to stdout a describe block for each method in the model file."
    puts "\tusage \"#{__FILE__}\" [MODEL_FILE]"
    exit 0
end

warn_and_exit if ARGV.size != 1

content = IO.read(ARGV[0])

methods = content.scan /^\s*def\s+([^\s\(]+).*$/

methods.flatten.each do |m|
    puts "describe '\##{m}' do"
    puts ""
    puts "end"
    puts ""
end