class ParallelTests

def self.run_tests(test_files, process_number, options)
  require_list = test_files.map { |filename| "\"./#{filename}\"" }.join(",")
  test_options = "- #{options[:test_options]}" unless RUBY_VERSION > '1.9.2' # test options passing is broken on 1.9.3 see issue #64
  cmd = "ruby -Itest -e '[#{require_list}].each {|f| require f }' -- #{options[:test_options]}"
  execute_command(cmd, process_number, options)
end