class Test::Unit::UI::TestRunner

def attach_listeners
  @listeners.each do |listener|
    listener.attach_to_mediator(@mediator)
  end
end

def diff_target_string?(string)
  Assertions::AssertionMessage.diff_target_string?(string)
end

def initialize(suite, options={})
  if suite.respond_to?(:suite)
    @suite = suite.suite
  else
    @suite = suite
  end
  @options = options
  @listeners = @options[:listeners] || []
end

def prepare_for_diff(from, to)
  Assertions::AssertionMessage.prepare_for_diff(from, to)
end

def setup_mediator
  @mediator = TestRunnerMediator.new(@suite, @options)
end

def start
  setup_mediator
  attach_to_mediator
  attach_listeners
  start_mediator
end

def start_mediator
  @mediator.run
end