included_test.rb

begin
  require "bundler/inline"
rescue LoadError => e
  raise e
end

gemfile(true) do
  source "https://rubygems.org"
  gem "activesupport"
end

require "active_support"

module A
  extend ActiveSupport::Concern

  included do
    echo_method :a_class_echo_method_in_includes
    def method_abc
        puts 'abc'
        puts test_class_echo_method
        puts test_class_instance_method
        puts a_class_echo_method_in_includes
        puts self.test_class_class_method
    end
  end

  # not work
  # echo_method :a_class_echo_method_outside_includesp

  def method_xyz
    puts 'xyz'
    puts test_class_echo_method
    puts test_class_instance_method
    puts self.test_class_class_method # error
  end
end


module AddTestName
    def echo_method(echo_str)
        class_eval <<-RUBY
            def #{echo_str}
                '#{echo_str}'
            end
        RUBY
    end
end

class Test
    extend ::AddTestName
    include A

    echo_method :test_class_echo_method

    def test_class_instance_method
        'test_class_instance_method'
    end

    def self.test_class_class_method
        'test_class_class_method'
    end
end


t = Test.new
t.method_abc
t.method_xyz