class WebMock::RequestRegistry

def to_s
  if requested_signatures.hash.empty?
    "No requests were made."
  else
    text = "".dup
    self.requested_signatures.each do |request_signature, times_executed|
      text << "#{request_signature} was made #{times_executed} time#{times_executed == 1 ? '' : 's' }\n"
    end
    text
  end
end