Ruby/Watir-Webdriver - 下载后无法访问该文件

Question

我正在研究从网站下载文件并将其添加到文件夹的测试场景.对于下载部分,我使用Watir文档中浏览器下载页面上描述的代码.当我等待下载文件时,在我的测试中遇到了主要问题:

    def verify_csv_file_exists
     path = Dir.getwd + "/downloads/"
     until File.exist?("#{path}*.csv") == true
      sleep 1
     end 
    end

运行测试时,上面的过程永远不会停止,因为尽管文件已下载,但它无法在目录中看到该文件.

有谁知道如何处理这种情况？

谢谢.

Answer 1

您只需在下载文件之前检查目录内容,然后等到目录中添加了新文件(通过将当前内容与之前的内容进行比较).这是您获取新文件名的方法:

这应该做的工作:

require 'watir-webdriver'

file_name = nil
download_directory = "#{Dir.pwd}/downloads"
download_directory.gsub!("/", "\\") if Selenium::WebDriver::Platform.windows?
downloads_before = Dir.entries download_directory

profile = Selenium::WebDriver::Firefox::Profile.new
profile['browser.download.folderList'] = 2 # custom location
profile['browser.download.dir'] = download_directory
profile['browser.helperApps.neverAsk.saveToDisk'] = "text/csv,application/pdf"

b = Watir::Browser.new :firefox, :profile => profile

b.goto 'https://dl.dropbox.com/u/18859962/hello.csv'

30.times do
  difference = Dir.entries(download_directory) - downloads_before
  if difference.size == 1
    file_name = difference.first 
    break
  end  
  sleep 1
end
raise "Could not locate a new file in the directory '#{download_directory}' within 30 seconds" if not file_name
puts file_name