client.rb

class Report::Client
end

report.rb

STDERR.puts "#{'='*40}"
STDERR.puts caller
STDERR.puts "#{'-'*40}"
STDERR.puts $".select { |x| x.include? "report" }
STDERR.puts "#{'='*40}"

require "client"

class Report < ActiveRecord::Base
end

test.rb

require "rubygems"
require "active_support"
require "active_record"

Dependencies.mechanism = :require
Dependencies.load_paths = [ '.' ]

require "report"

puts "Report required"