cucumber test file download

Question

Anybody have idea how to test file download using cucumber?

Answer 1

On chrome I do it by opening the page: chrome://downloads and then use the shadow dom to retrieve the downloaded files:

document
  .querySelector('downloads-manager')
  .shadowRoot.querySelector('#downloads-list')
  .getElementsByTagName('downloads-item');

The downloaded files list also contain information such as file path and download date.

Answer 2

I found this to be a convenient way of testing for downloads, its a naiv way just testing for the headers put for most of the time its reasonable.

If you are using capbybara then put the following inside your step_definitions.rb

    Then /^I should get a download with the filename "([^\"]*)"$/ do |filename|
       page.response_headers['Content-Disposition'].should include("filename=\"#{filename}\"")
    end

Inside your feature you can now do:

    When I follow "Export as ZIP"
    Then I should get a download with the filename "contacts_20110203.zip"

Cheers

Answer 3

For Chrome you can set the capability providing chrome options. Refer below code

      String downloadFilepath = "path to specify download location e.g. C:\\Downloads";      
      Map<String, Object> chromePrefs = new HashMap<String, Object>();
      chromePrefs.put("profile.default_content_settings.popups", 0);
      chromePrefs.put("download.default_directory", downloadFilepath);
      ChromeOptions options = new ChromeOptions();
      options.setExperimentalOption("prefs", chromePrefs);
      DesiredCapabilities cap = DesiredCapabilities.chrome();       
      cap.setCapability(ChromeOptions.CAPABILITY, options);
      WebDriver driver = new ChromeDriver(cap);

then you can use exists() method of java.io.File to make sure if file exists.

    File file = new file(downloadFilepath+filename);
    assert file.exists() : "File not downloaded";

Answer 4

This worked for me based when using send_data like so send_data(data, :filename => "inventory_#{Date.today.to_s}.csv", :disposition => 'attachment')

Probably not best way to write the step, but it worked!

Then /^I should receive a file(?: "([^"]*)")?/ do |file|
  result = page.response_headers['Content-Type'].should == "application/octet-stream"
  if result
    result = page.response_headers['Content-Disposition'].should =~ /#{file}/
  end
  result
end

Answer 5

I run selenium through chrome, when I'm testing that the csv has downloaded, I use the following in Ruby:

Then /^I should get a downloaded file for fleet: "(.*?)"$/ do |export|       
    puts Dir["C:/Users/**/Downloads/fleet_#{export}_export_all_*.csv"].last
end

It simply looks in the default download directory and confirms that the file is there and outputs the filename within cmd.