Question

我尝试在Chrome中实施same logic并收到错误消息。如果有人可以帮我解决问题，那就太好了。

代码编写：

require 'watir-webdriver'

class Selenium::WebDriver::Chrome::Service old_initialize = instance_method(:initialize)      
    define_method(:initialize) do |executable_path, port, *extra_args|
            old_initialize.bind(self).call(executable_path, port, '--silent', *extra_args)
    end
end

#Starts without diagnostic output
b = Watir::Browser.new :chrome

获得的错误消息：

ArgumentError: wrong number of arguments (3 for 2)
 from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.29.0/lib/selenium/webdriver/chrome/service.rb:36:in initialize
 from (irb):5:in call
 from (irb):5:in block in
 from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.29.0/lib/selenium/webdriver/chrome/service.rb:33:in new
 from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.29.0/lib/selenium/webdriver/chrome/service.rb:33:in default_service
 from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.29.0/lib/selenium/webdriver/chrome/bridge.rb:14:in initialize
 from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.29.0/lib/selenium/webdriver/common/driver.rb:37:in new
 from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.29.0/lib/selenium/webdriver/common/driver.rb:37:in for

我为此尝试了替代方案，但这不起作用。代码：

class Selenium::WebDriver::Chrome::Bridge
    old_extract_service_args = instance_method(:extract_service_args)
    define_method(:extract_service_args) do |opts|
        args = old_extract_service_args.bind(self).call(opts)
        if opts.has_key?(:service_silent) 
            opts.delete(:service_silent) 
            args << "--silent"
        end
        args
    end
end

#Starts without diagnostic output
b = Watir::Browser.new :chrome, :service_silent => true

#Starts with diagnostic output
b = Watir::Browser.new :chrome

获得的错误：

undefined method `extract_service_args' for class `Selenium::WebDriver::Chrome::Bridge' (NameError)

Answer 1

您尝试执行的猴子补丁是为selenium-webdriver v2.33.0（宝石的最新版本）编写的。基于异常，您使用的是v2.29.0，它没有extra_args参数。

最好的解决方案是升级到你的selenium-webdriver gem。

gem install selenium-webdrver

如果你必须使用版本2.29.0（使用chromedriver v2.0），那么你将不得不做一个不同的猴子补丁。

require 'watir-webdriver'

module Selenium
    module WebDriver
        module Chrome
            class Service
                def initialize(executable_path, port)
                    @uri           = URI.parse "http://#{Platform.localhost}:#{port}"
                    server_command = [executable_path, "--port=#{port}", "--silent"]

                    @process       = ChildProcess.build(*server_command)
                    @socket_poller = SocketPoller.new Platform.localhost, port, START_TIMEOUT

                    @process.io.inherit! if $DEBUG == true
                end
            end
        end
    end
end

browser = Watir::Browser.new :chrome

浏览器将在没有初始诊断消息的情况下启动。请注意，这不会解决chromedriver日志记录信息，这些信息是不同的（并且最好通过升级到版本2.33.0来处理）。

在Chrome中禁用ruby的诊断消息

1 个答案: