Find Necessary Ruby Method for Desired Output

gistfile1.txt

#!/usr/bin/env ruby

## Find necessary method for desired result
## entering:
##    jason$ method_find.rb "HELLO" "hello"
## returns:
##    HELLO.downcase == hello
##    HELLO.swapcase == hello


def method?(current, desired, debug: false)
  valid_methods = []
  
  current.methods.each do |method|
    begin
      if current.send(method) == desired.to_s
        puts "METHOD #{method} produces desired result" if debug
        valid_methods << method.to_s
      else
        puts "METHOD #{method} DOES NOT produce desired result" if debug
      end
    rescue => e
      puts "METHOD #{method} caused an exception : #{e}" if debug
    end
  end

  valid_methods
end

methods = method?(ARGV[0], ARGV[1], debug: false)

puts ?\n
methods.each do |method|
  puts "#{ARGV[0]}.#{method} == #{ARGV[1]}"
end