我正在使用watir-webdriver
ruby gem.它启动浏览器(Chrome)并开始加载页面.页面加载太慢,watir-webdriver引发超时错误.如何让浏览器停止加载页面？
require 'watir-webdriver'
client = Selenium::WebDriver::Remote::Http::Default.new
client.timeout = 10
@browser = Watir::Browser.new :chrome,:http_client => client
sites = [
"http://google.com/","http://yahoo.com/","http://www.nst.com.my/",# => This is the SLOW site
"http://drupal.org/","http://www.msn.com/","https://stackoverflow.com/"
]
sites.each do |url|
begin
@browser.goto(url)
puts "Success #{url}"
rescue
puts "Timeout #{url}"
end
end
########## Execution result ##########
# Success http://google.com/
# Success http://yahoo.com/
# Timeout http://www.nst.com.my/
# Timeout http://drupal.org/
# Timeout http://www.msn.com/
# Timeout https://stackoverflow.com/
########## Expected result ##########
# Success http://google.com/
# Success http://yahoo.com/
# Timeout http://www.nst.com.my/
# Success http://drupal.org/
# Success http://www.msn.com/
# Success https://stackoverflow.com/
看起来浏览器在完成加载页面之前不响应任何其他命令.如何强制浏览器丢弃正在加载的页面并执行下一个命令？
更新
我找到了一个有趣的功能标志loadAsync http://src.chromium.org/svn/trunk/src/chrome/test/webdriver/webdriver_capabilities_parser.cc也许它对解决这个问题有用吗？我还不明白如何在启动chromedriver时让watir(webdriver)设置它.这个标志在这里介绍了http://codereview.chromium.org/7582005/
解决方法
有几种不同的方法可以做你想要的,但这就是我要做的事情：
require 'watir-webdriver'
client = Selenium::WebDriver::Remote::Http::Default.new
client.timeout = 60
@browser = Watir::Browser.new :firefox,:http_client => client
begin
@browser.goto mySite
rescue => e
puts "Browser timed out: #{e}"
end
next_command
如果您有很多站点正在尝试加载以确认超时,请将它们放在一个数组中：
mySites = [
mySite1,mySite2,mySite3
]
mySites.each do |site|
begin
@browser.goto site
rescue
"Puts #{site} Failed to load within the time allotted."
end
end
更新概念证明.该脚本总是进行到第2步.第二个goto甚至不需要救援,但是用于更清晰的输出.你的剧本与此有何不同？
require 'watir-webdriver'
client = Selenium::WebDriver::Remote::Http::Default.new
client.timeout = 1 #VERY low timeout to make most sites fail
@browser = Watir::Browser.new :firefox,:http_client => client
def testing
begin
@browser.goto "http://www.cnn.com"
rescue => e
puts "Browser timed out on the first example"
end
begin
@browser.goto "http://www.foxnews.com"
rescue => e
puts "Browser timed out on the second example"
end
end