module ActionDispatch::TestHelpers::PageDumpHelper

def html_dump_default_path
  Rails.root.join("tmp/html_dump", "#{method_name}_#{DateTime.current.to_i}.html").to_s
end

def open_file(path)
  require "launchy"
  Launchy.open(path)
rescue LoadError
  warn "File saved to #{path}.\nPlease install the launchy gem to open the file automatically."
end

def save_and_open_page(path = html_dump_default_path)
  save_page(path).tap { |s_path| open_file(s_path) }
end

def save_page(path = html_dump_default_path)
  raise InvalidResponse.new("Response is a redirection!") if response.redirection?
  path = Pathname.new(path)
  path.dirname.mkpath
  File.write(path, response.body)
  path
end