class ParallelTests::Test::Runner

def execute_command_and_capture_output(env, cmd, options)
  pid = nil
  popen_options = {}
  popen_options[:err] = [:child, :out] if options[:combine_stderr]
  output = IO.popen(env, cmd, popen_options) do |io|
    pid = io.pid
    ParallelTests.pids.add(pid)
    capture_output(io, env, options)
  end
  ParallelTests.pids.delete(pid) if pid
  exitstatus = $?.exitstatus
  seed = output[/seed (\d+)/, 1]
  output = "#{Shellwords.shelljoin(cmd)}\n#{output}" if report_process_command?(options) && options[:serialize_stdout]
  { env: env, stdout: output, exit_status: exitstatus, command: cmd, seed: seed }
end