class ActiveSupport::Testing::ProxyTestResult

def __replay__(result)
  @calls.each do |name, args|
    result.send(name, *args)
  end
end

def add_error(e)
  e = Test::Unit::Error.new(e.test_name, RemoteError.new(e.exception))
  @calls << [:add_error, e]
end

def initialize
  @calls = []
end

def method_missing(name, *args)
  @calls << [name, args]
end