尝试使用chromedriver运行测试时出现的问题

Question

我目前在尝试使用chromedriver运行Ruby测试时遇到了一个问题。

我使用selenium-webdriver 3.14.0，cucumber 3.1.2，Windows 10

每当我使用firefox运行测试时，它们都加载和运行得很好，没有任何问题。然而，当我将它们中的一个更改为使用chromedriver并尝试运行它时，我得到了以下错误：

unable to connect to chromedriver 127.0.0.1:9515

我将chromedriver放在PATH中，并使用以下代码尝试初始化ruby代码中的驱动程序：

require 'selenium-webdriver'

options = Selenium::WebDriver::Chrome::Options.new
options.add_argument('--ignore-certificate-errors')
options.add_argument('--disable-popup-blocking')
options.add_argument('--disable-translate')

driver1 = Selenium::WebDriver.for :chrome, options: options

Given (/^we navigate to the Timesheets area$/) do
driver1.navigate.to "test"
driver1.find_element(:id, 'EmailAddress').send_keys("test")
driver1.find_element(:id, 'Password').send_keys("test")
driver1.find_element(:css, 'button').click
wait = Selenium::WebDriver::Wait.new(:timeout => 5)
begin
    element = wait.until { driver1.find_element(:class => "name") }
end
    driver1.find_element(:css, 'i.fa.fa-clock-o').click
    begin
    element = wait.until { driver1.find_element(:class => "pull-left") }
    expect(element.text).to eq('Timesheets')
    end
end

    en (/^we click the Add New Timesheet Button$/) do
    driver1.find_element(:css, 'a.pull-right').click
   end

Then (/^we should be taken to the Add New Timesheet Page$/) do
wait = Selenium::WebDriver::Wait.new(:timeout => 5)
begin
    element = wait.until { driver1.find_element(:css => "h1.pull-left") }
    expect(element.text).to eq('Add Timesheet')
ensure
    driver1.quit
end
end

在这方面所能提供的任何帮助都将不胜感激

编辑:使用完整错误堆栈跟踪进行了更新：

unable to connect to chromedriver 127.0.0.1:9515 
(Selenium::WebDriver::Error::WebDriverError)
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver- 
3.14.0/lib/selenium/webdriver/common/service.rb:142:in `connect_until_stable'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3 
3.14.0/lib/selenium/webdriver/common/service.rb:72:in `block in start'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver- 
3.14.0/lib/selenium/webdriver/common/socket_lock.rb:39:in `locked'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver- 
3.14.0/lib/selenium/webdriver/common/service.rb:69:in `start'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver- 
3.14.0/lib/selenium/webdriver/chrome/driver.rb:43:in `initialize'
 C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver- 
3.14.0/lib/selenium/webdriver/common/driver.rb:44:in `new'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver- 
3.14.0/lib/selenium/webdriver/common/driver.rb:44:in `for'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver- 
3.14.0/lib/selenium/webdriver.rb:86:in `for'
C:/Ruby25-x64/features/step_definitions/timesheet_steps.rb:9:in `<top 
(required)>'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/glue/registry_and_more.rb:107:in `load'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/glue/registry_and_more.rb:107:in `load_code_file'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/runtime/support_code.rb:144:in `load_file'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/runtime/support_code.rb:85:in `block in load_files!'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/runtime/support_code.rb:84:in `each'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/runtime/support_code.rb:84:in `load_files!'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/runtime.rb:272:in `load_step_definitions'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/runtime.rb:68:in `run!'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber- 
3.1.2/lib/cucumber/cli/main.rb:34:in `execute!'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/cucumber-3.1.2/bin/cucumber:9:in `<top 
(required)>'
 C:/Ruby25-x64/bin/cucumber:23:in `load'
 C:/Ruby25-x64/bin/cucumber:23:in `<main>'

编辑2:我现在使用的是Watir，它默认使用Chrome。我通过在命令提示符下使用irb来使用交互式Ruby控制台。

我运行的唯一命令是：

 require "Watir"
 b = Watir::Browser.new

然后我得到了下面的堆栈跟踪：

Traceback (most recent call last):
   12: from C:/Ruby25-x64/bin/irb.cmd:19:in `<main>'
   11: from (irb):3
   10: from (irb):3:in `new'
    9: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/watir-6.12.0/lib/watir/browser.rb:48:in `initialize'
    8: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver.rb:86:in `for'
    7: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver/common/driver.rb:44:in `for'
    6: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver/common/driver.rb:44:in `new'
    5: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver/chrome/driver.rb:43:in `initialize'
    4: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver/common/service.rb:69:in `start'
    3: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver/common/socket_lock.rb:39:in `locked'
    2: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver/common/service.rb:72:in `block in start'
    1: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/selenium-webdriver-3.14.0/lib/selenium/webdriver/common/service.rb:142:in `connect_until_stable'
Selenium::WebDriver::Error::WebDriverError (unable to connect to chromedriver 127.0.0.1:9515)

我是不是遗漏了什么，因为我在路径中设置了ChromeDriver，所以在我的脑海中，它应该运行起来没有任何问题，因为火狐运行得很棒

Answer 1

使用webdrivers.gem自动使您的驱动程序保持最新。路径可能会变得很复杂，所以webdriver gem会忽略它，并指定Selenium应该独立查找驱动程序的位置。它也不像chromedriver-helper那样使用垫片，所以它不会弄乱任何系统设置。只需将gem添加到您的gemfile/gemspec中，然后在您的代码中使用require 'webdrivers'。

Answer 2

这个问题与旧版本的Chromedriver有关。有些Selenium版本不能处理旧版本的chromedriver。

请更新或安装最新的gem。

Answer 3

尝试使用chromedriver-helper gem。