class ParallelTests::Test::Runner

def self.run_tests(test_files, process_number, options)
  require_list = test_files.map { |filename| %{"#{File.expand_path filename}"} }.join(",")
  cmd = "ruby -Itest -e '[#{require_list}].each {|f| require f }' -- #{options[:test_options]}"
  execute_command(cmd, process_number, options)
end