我正在使用Capybara(Selenium驱动程序)访问网站上的某些页面.我只需点击数组中的每个项目,然后单击后退按钮.它很好,但每次经过一些迭代后它就会破坏.
这是代码：
all(:xpath,'//table[@class="griglia_bordata"]//tr[td]/td/a[1]').each do |a|
a_js_functions << a[:href]
end
a_js_functions.each do |js_for_model|
puts js_for_model
page.execute_script js_for_model
find(:xpath,"//a[text()='Check availability']").click
puts find(".testo_grande_blu_B").text
puts "--------------------------------------------"
find(:xpath,"//a[text()='Back']").click
end
我有输出：
javascript:selectModel(‘130254’) Style: RB2132
——————————————– javascript:selectModel(‘309257’) Style: RB2140
——————————————– javascript:selectModel(‘68238’) Style: RB3016
——————————————– javascript:selectModel(‘68248’) Style: RB3025
——————————————– javascript:selectModel(‘68293’) Style: RB3026
——————————————– javascript:selectModel(‘68320’) Style: RB3044
——————————————– javascript:selectModel(‘68460’)
/usr/lib/ruby/1.9.1/net/protocol.rb:146:in rescue in rbuf_fill':
Timeout::Error (Timeout::Error) from
/usr/lib/ruby/1.9.1/net/protocol.rb:140:inrbuf_fill’ from
/usr/lib/ruby/1.9.1/net/protocol.rb:122:in readuntil' from
/usr/lib/ruby/1.9.1/net/protocol.rb:132:inreadline’ from
/usr/lib/ruby/1.9.1/net/http.rb:2562:in read_status_line' from
/usr/lib/ruby/1.9.1/net/http.rb:2551:inread_new’ from
/usr/lib/ruby/1.9.1/net/http.rb:1319:in block in transport_request'
from /usr/lib/ruby/1.9.1/net/http.rb:1316:incatch’ from
/usr/lib/ruby/1.9.1/net/http.rb:1316:in transport_request' from
/usr/lib/ruby/1.9.1/net/http.rb:1293:inrequest’ from
/usr/lib/ruby/1.9.1/net/http.rb:1286:in block in request' from
/usr/lib/ruby/1.9.1/net/http.rb:745:instart’ from
/usr/lib/ruby/1.9.1/net/http.rb:1284:in request' from
/var/lib/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/default.rb:82:in
response_for’ from
/var/lib/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/default.rb:38:in
request' from
/var/lib/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:40:in
call’ from
/var/lib/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:598:in
raw_execute' from
/var/lib/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:576:in
execute’ from
/var/lib/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:554:in
find_elements_by' from
/var/lib/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/common/search_context.rb:62:in
find_elements’ from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/selenium/driver.rb:52:in
find' from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/node/finders.rb:158:in
find_in_base’ from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/node/finders.rb:137:in
block in first' from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/node/finders.rb:136:in
each’ from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/node/finders.rb:136:in
first' from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/node/finders.rb:27:in
block in find’ from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/node/base.rb:46:in
wait_until' from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/node/finders.rb:27:in
find’ from (eval):2:in find' from
/var/lib/gems/1.9.1/gems/capybara-1.1.2/lib/capybara/dsl.rb:161:in
find’ from
/home/biske/workspace/ScrapingGlasses/lib/luxottica.rb:39:in block in
scrape' from
/home/biske/workspace/ScrapingGlasses/lib/luxottica.rb:36:ineach’
from /home/biske/workspace/ScrapingGlasses/lib/luxottica.rb:36:in
scrape' from
/home/biske/workspace/ScrapingGlasses/lib/luxottica.rb:12:ingo’
from /home/biske/workspace/ScrapingGlasses/lib/luxottica.rb:48:in
`’
我之前看到过类似的痕迹和2个可能的原因：
1)像FakeWeb和WebMock这样的宝石修改了ruby的http.尝试删除那些您可能用来模拟/阻止Web请求的宝石和任何类似的宝石.
2)我在一个真正加载的系统中看到了一个案例,这个超时会在某种程度上随机发生.真的,这里的问题不是测试,而是系统及其上运行的内容.可以更改http库使用的超时并继续测试.
更新为Capybara :(从http://selenium.googlecode.com/svn/wiki/RubyBindings.wiki)
Capybara.register_driver :selenium_extended_http_timeout do |app|
client = Selenium::WebDriver::Remote::Http::Default.new
client.timeout = 240
Capybara::Selenium::Driver.new(app,:browser => :firefox,:http_client => client,:resynchronization_timeout => 60,:resynchronize => true)
end
Capybara.javascript_driver = :selenium_extended_http_timeout
您很可能不需要重新同步的东西.
在这两种情况下,这都与硒如何进行内部沟通有关. JsonWireProtocol.
