导致TypeError的硒和WebMock

Question

在第一次调用visit时，WebMock和Selenium的组合会导致类型错误

 Failure/Error: id['ELEMENT'] || id['element-6066-11e4-a52e-4f735466cecf']
      TypeError:
        no implicit conversion of String into Integer
# /selenium-webdriver-3.4.0/lib/selenium/webdriver/common/bridge_helper.rb:43:in `[]'
# /selenium-webdriver-3.4.0/lib/selenium/webdriver/common/bridge_helper.rb:43:in `element_id_from'
# /selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/bridge.rb:638:in `block in find_elements_by'
# /selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/bridge.rb:638:in `each'
# /selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/bridge.rb:638:in `map'
# /selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/bridge.rb:638:in `find_elements_by'
# /selenium-webdriver-3.4.0/lib/selenium/webdriver/common/search_context.rb:79:in `find_elements'
# /capybara-2.14.0/lib/capybara/selenium/driver.rb:86:in `find_xpath'
# /capybara-2.14.0/lib/capybara/node/base.rb:108:in `find_xpath'
# /capybara-2.14.0/lib/capybara/queries/selector_query.rb:135:in `block in resolve_for'
# /capybara-2.14.0/lib/capybara/node/base.rb:81:in `synchronize'
# /capybara-2.14.0/lib/capybara/queries/selector_query.rb:131:in `resolve_for'
# /capybara-2.14.0/lib/capybara/node/finders.rb:40:in `block in find'
# /capybara-2.14.0/lib/capybara/node/base.rb:85:in `synchronize'
# /capybara-2.14.0/lib/capybara/node/finders.rb:38:in `find'
# /capybara-2.14.0/lib/capybara/node/actions.rb:92:in `fill_in'
# /capybara-2.14.0/lib/capybara/session.rb:784:in `block (2 levels) in <class:Session>'
# /capybara-angular-0.2.5/lib/capybara/angular/dsl.rb:8:in `block (2 levels) in <module:DSL>'
# ./spec/features/assesment_picker_spec.rb:34:in `block (3 levels) in <top (required)>'

但是，当我删除所有WebMock代码时，我的测试就会执行。我在我的WebMock异常中允许localhost，但是我的测试仍然无法执行。我不确定还需要做些什么才能让Selenium在使用WebMock的同时运行。此外，如果Selenium规范是第一个运行的，它们就会通过。

水豚设置

Capybara.configure do |config|
  config.run_server = false
  config.app_host = root_url #retrieved elsewhere

  Capybara.register_driver :chrome do |app|
    Capybara::Selenium::Driver.new(app, browser: :chrome)
  end

  config.save_path = File.join Dir.pwd, 'tmp', 'capybara'
end

Capybara.default_driver = :chrome
Capybara.current_driver = Capybara.default_driver
Capybara.javascript_driver = Capybara.default_driver

等级库辅助对象

require 'rspec/rails'
require 'rspec/autorun'
require 'factory_girl_rails'
require 'webmock/rspec'

WebMock.disable_net_connect!(allow_localhost: true, allow: [/browserstack.com/])

# Load support files
Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }

RSpec.configure do |config|
  config.mock_with :rspec do |mocks|
    mocks.verify_partial_doubles = true
  end
end

从远程/桥接器中的find_elements返回的散列#find_elements_by

$ how
"css selector"
$ what
"a"
$ execute :find_elements, {}, {using: how, value: what}

{
              "acceptSslCerts" => true,
     "applicationCacheEnabled" => false,
    "browserConnectionEnabled" => false,
                 "browserName" => "chrome",
                      "chrome" => {
        "chromedriverVersion" => "2.29.461585 (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b)",
                "userDataDir" => "/var/folders/2h/ws89fb2s381c9_3fzy6f9gzm0000gn/T/.org.chromium.Chromium.RPWXqC"
    },
         "cssSelectorsEnabled" => true,
             "databaseEnabled" => false,
               "handlesAlerts" => true,
              "hasTouchScreen" => false,
           "javascriptEnabled" => true,
      "locationContextEnabled" => true,
      "mobileEmulationEnabled" => false,
                "nativeEvents" => true,
    "networkConnectionEnabled" => false,
            "pageLoadStrategy" => "normal",
                    "platform" => "Mac OS X",
                   "rotatable" => false,
           "takesHeapSnapshot" => true,
             "takesScreenshot" => true,
    "unexpectedAlertBehaviour" => "",
                     "version" => "57.0.2987.133",
           "webStorageEnabled" => true
}

工具

$ chromedriver -v
ChromeDriver 2.29.461585 (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b)
$ bundle list selenium-webdriver
/Users/aaron/.rvm/gems/ruby-2.3.4/gems/selenium-webdriver-3.4.0

Answer 1

很可能您正在使用的selenium-webdriver与您正在使用的chromedriver版本不兼容。更新到最新的selenium-webdriver (我输入时为3.4.0)和chromedriver (2.29)。您可能还需要指示WebMock允许127.0.0.1上的连接用于selenium和chromedriver之间的通信，具体取决于您的配置。

Answer 2

我总是为Browserstack和SauceLabs导入路缘模块，而不仅仅是在运行远程驱动程序的情况下。