我正在使用Capybara和Poltergeist驱动程序编写验收测试。我需要验证下载的CSV文件的内容。
最后,我想选择在特定文件夹中下载文件,然后使用核心ruby库读取CSV文件。
为了实现这一点,当poltergeist驱动程序点击下载链接时,我希望它能够处理弹出窗口并直接在给定文件夹中下载文件。
在Selenium的chrome和firefox驱动程序中,我可以选择配置配置文件来处理弹出窗口并配置下载目录。
使用恶作剧者有没有这样的选择?任何信息都会有所帮助。
答案 0 :(得分:23)
使用Poltergeist是不可能的,你可以检查标题。
step 'I should get zipped file' do
page.response_headers['Content-Disposition'].should include("filename=\"file.zip\"")
end
但可以使用Chrome驱动程序以及最新版本的Firefox和Selenium Webdriver。不幸的是,它通过Selenium运行 - 即不是无头......请参阅此文章:http://collectiveidea.com/blog/archives/2012/01/27/testing-file-downloads-with-capybara-and-chromedriver/
我的方法 - 与我在使用Spinach和Rubyzip时略有不同:
将以下内容添加到 Gemfile
group :test do
gem 'chromedriver-helper' # for Chrome <= 28
gem 'chromedriver2-helper' # for Chrome >= 29
gem 'selenium-webdriver'
end
features / support / capybara.rb - 我在使用带有@javascript
标记的情景时使用了使用Poltergeist,在使用@download
标记的情景中使用了Chrome。
require 'spinach/capybara'
require 'capybara/poltergeist'
require 'selenium/webdriver'
# ChromeDriver 1.x, for Chrome <= 28
Capybara.register_driver :chrome do |app|
profile = Selenium::WebDriver::Chrome::Profile.new
profile['download.default_directory'] = DownloadHelper::PATH.to_s
args = ["--window-size=1024,768"]
Capybara::Selenium::Driver.new(app, browser: :chrome, profile: profile, args: args)
end
# ChromeDriver 2.x, for Chrome >= 29
Capybara.register_driver :chrome do |app|
prefs = {
download: {
prompt_for_download: false,
default_directory: DownloadHelper::PATH.to_s
}
}
args = ['--window-size=1024,768']
Capybara::Selenium::Driver.new(app, browser: :chrome, prefs: prefs, args: args)
end
# Tested with Firefox 27 and Selenium Webdriver 2.39
Capybara.register_driver :firefox do |app|
profile = Selenium::WebDriver::Firefox::Profile.new
profile['browser.download.dir'] = DownloadHelper::PATH.to_s
profile['browser.download.folderList'] = 2 # 2 - save to user defined location
profile['browser.helperApps.neverAsk.saveToDisk'] = 'application/zip'
Capybara::Selenium::Driver.new(app, browser: :firefox, profile: profile)
end
Capybara.javascript_driver = :poltergeist # :webkit :selenium :poltergeist :chrome
Spinach.hooks.on_tag("javascript") do
Capybara.current_driver = Capybara.javascript_driver
Capybara.default_wait_time = 5
end
Spinach.hooks.on_tag("download") do
Capybara.current_driver = :chrome # or :firefox
Capybara.default_wait_time = 50
end
功能性/支撑性/ downloads.rb 强>
module DownloadHelper
TIMEOUT = 10
PATH = Rails.root.join("tmp/downloads")
extend self
def downloads
Dir[PATH.join("*")]
end
def download_path
wait_for_download
downloads.first
end
def download_content
wait_for_download
File.read(download_path)
end
def wait_for_download
Timeout.timeout(TIMEOUT) do
sleep 0.1 until downloaded?
end
end
def downloaded?
downloads.any? && !downloading?
end
def downloading?
downloads.grep(/\.crdownload$/).any?
end
def clear_downloads
FileUtils.rm_f(downloads)
end
end
Spinach.hooks.before_scenario do |scenario|
DownloadHelper.clear_downloads
end
Spinach.hooks.after_scenario do
DownloadHelper.clear_downloads
end
功能/ file_download.feature 强>
Feature: File download
As a user
I want to be able to download my files
Background:
Given I am logged in as a user
And I have uploaded files in the system
@download
Scenario: Successfull download
When I click on the download button
Then I should get zipped files
features / steps / file_download.rb - 请注意,您无法使用page.response_headers
,因为Selenium / ChromeDriver不支持它。但您可以使用File.basename()
检查下载文件的文件名。
class Spinach::Features::FileDownload < Spinach::FeatureSteps
include SharedAuthentication
step 'I click on the download button' do
click_link "Download"
end
step 'I should get zipped files' do
File.basename(DownloadHelper.download_path).should == 'file.zip'
Zip::ZipFile.open(DownloadHelper.download_path) do |zipfile|
zipfile.find_entry('myfile.txt').should_not be_nil
zipfile.find_entry('myphoto.jpg').should_not be_nil
end
end
end
答案 1 :(得分:15)
我必须在我的rails应用程序中做类似的事情。我的解决方案是使用Javascript对URL进行XMLHttpRequest,下载文件,将文件内容返回给Capybara,并使用ruby将文件保存在磁盘上的某个位置。然后在另一步中,我检查下载的CSV文件的内容。
以下是下载文件的步骤定义:
Then /^I download the csv file$/ do
page.execute_script("window.downloadCSVXHR = function(){ var url = window.location.protocol + '//' + window.location.host + '/file.csv'; return getFile(url); }")
page.execute_script("window.getFile = function(url) { var xhr = new XMLHttpRequest(); xhr.open('GET', url, false); xhr.send(null); return xhr.responseText; }")
data = page.evaluate_script("downloadCSVXHR()")
File.open(File.join(Rails.root, "tmp", "csv.data"), "w") { |f| f.write(data) }
end
将Javascript代码中的网址更改为CSV的位置。
最后,这是验证CSV文件内容的步骤定义:
And /^the contents of the downloaded csv should be:$/ do |contents|
file = File.open(File.join(Rails.root, "tmp", "csv.data"), "r")
file_contents = file.read
file_contents.chop!
file_contents.should == contents
end
祝你好运。希望这会有所帮助。
答案 2 :(得分:4)
Poltergeist目前无法做到这一点。
我认为你最好为这个没有使用Capybara的CSV编写测试。 (例如,使用内置的Rails集成测试内容并将响应解析为CSV。)
答案 3 :(得分:2)
有一张支持在PhantomJS / Poltergeist中下载文件的票证,并且有一两个叉子声称他们以某种方式使其工作。见https://github.com/ariya/phantomjs/issues/10052