class RSpec::Core::CommandLine

def run(err, out)
  configuration.error_stream = err
  configuration.output_stream = out
  world.announce_inclusion_filter
  configuration.reporter.report(example_count) do |reporter|
    begin
      configuration.run_hook(:before, :suite)
      example_groups.run_examples(reporter)
    ensure
      configuration.run_hook(:after, :suite)
    end
  end
  example_groups.success?
end