class Rails::TestRequirer

def expand_patterns(patterns)
  patterns.map do |arg|
    arg = arg.gsub(/(:\d+)+?$/, '')
    if Dir.exist?(arg)
      "#{arg}/**/*_test.rb"
    else
      arg
    end
  end
end

def require_files(patterns)
  patterns = expand_patterns(patterns)
  Rake::FileList[patterns.compact.presence || 'test/**/*_test.rb'].to_a.each do |file|
    require File.expand_path(file)
  end
end