Watir 在 IE 和 PhantomJS 中找不到元素

Question

我在不同浏览器中运行脚本时遇到问题：我的脚本在 Chrome、Firefox 中运行正常，但在 IE 和 PhantomJS 中存在问题。最奇怪的是几天前我在 PhantomJS 中成功完成了相同的脚本，我确信没有人更改 gems/浏览器。 这是我要执行的脚本：

class HomePage
   ....
   link(:signInLink, :text=>"Sign In")
   ....
def log_in(username="admin", password="admin123")
   self.signInLink_element.when_present(60).click//hangs here
   self.login_element.when_present(60)
   self.username = username
   self.password = password
   self.signIn_element.click
end

页面的 HTML 代码：

<div class="user-display">
<span class="user-actions">
    <a rel="nofollow" href="/RedisCache/Users/Account/LogOn?ReturnUrl=%2FRedisCache%2F">
        Sign In
    </a>
</span>
</div>

通过黄瓜运行我的脚本我已经看到了下一个异常（PhantomJS）：

timed out after 60 seconds, waiting for {:text=>"Sign In", :tag_name=>"a"} to become present(Watir::Wait::TimeoutError)

当我尝试使用 irb “手动”重现这种情况时，我在尝试单击登录链接（PhantomJS）时遇到了下一个异常：

Selenium::WebDriver::Error::ElementNotVisibleError: Error Message => 'Element is not currently visible and may not be manipulated'
caused by Request => {"headers":{"Accept":"application/json","Connection":"close","Content-Length":"2","Content-Type":"application/x-www-form-urlencoded","Host":"127.0.0.1:8910","User-Agent":"Ruby"},"httpVersion":"1.1","method":"POST","post":"{}","postRaw":"{}","url":"/click","urlParsed":{"anchor":"","query":"","file":"click","directory":"/","path":"/click","relative":"/click","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/click","queryKey":{},"chunks":["click"]},"urlOriginal":"/session/ed325840-496d-11e4-9570-2d0549eccb44/element/%3Awdc%3A1412169736003/click"} (ReqHand)
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/response.rb:52:in `assert_ok'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/response.rb:15:in `initialize'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/http/common.rb:59:in `new'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/http/common.rb:59:in `create_response'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/http/default.rb:66:in `request'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/http/common.rb:40:in `call'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/bridge.rb:638:in `raw_execute'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/bridge.rb:616:in `execute'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/remote/bridge.rb:373:in `clickElement'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/common/element.rb:54:in `click'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.11/lib/watir-webdriver/elements/element.rb:132:in `click'

当我在 IE 浏览器中运行脚本时，无论我是在运行黄瓜还是试图“手动”单击此链接，都会挂起。正如我所看到的，链接就像失去/接收焦点一样闪烁，仅此而已。 我试图降级 PhantomJS 版本并重新安装它，但没有任何帮助。 有什么建议么？ IE版本为9.0.8112 PhantomJS 版本是 1.9.7.0 所有 Gem 都有最新版本。

Answer 1

我过去曾遇到过 :text 选择器和 IEDriver 的问题。这对我来说非常挑剔，有时通过，有时失败。我会切换到其中之一：

link(:SignInLink, href: "/RedisCache/Users/Account/LogOn?ReturnUrl=%2FRedisCache%2F")

link(:SignInLink, xpath: "//span[@class='user-actions']/a[contains(@href,'Users/Account/LogOn')]")