ruby - Watir-webdriver 在询问元素是否存在时超时？

Question

• ruby 1.9.3p327
• watir-webdriver 0.6.1

在全新的 Ruby 安装和全新的 Webdriver 安装中，我无法使用 wait 或present？包含不存在的元素，而不会导致非 Watir 超时错误。

在下面的示例中，id“gb_32”位于页面上，但处于隐藏状态。 ID“gb_50000”不存在。在这两种情况下“在场？”应该返回 false，但第二个在 60 秒后给我一个超时错误。 有什么想法为什么会发生这种情况吗？

    irb(main):014:0> b.link(:id,'gb_32').present?
    => false
    irb(main):015:0> b.link(:id,'gb_50000').present?
    Timeout::Error: Timeout::Error
            from C:/Ruby193/lib/ruby/1.9.1/net/protocol.rb:146:in `rescue in rbuf_fill'
            from C:/Ruby193/lib/ruby/1.9.1/net/protocol.rb:140:in `rbuf_fill'
            from C:/Ruby193/lib/ruby/1.9.1/net/protocol.rb:122:in `readuntil'
            from C:/Ruby193/lib/ruby/1.9.1/net/protocol.rb:132:in `readline'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:2562:in `read_status_line'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:2551:in `read_new'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:1319:in `block in transport_request'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:1316:in `catch'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:1316:in `transport_request'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:1293:in `request'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:1286:in `block in request'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:745:in `start'
            from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:1284:in `request'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/default.rb:82:in `response_for'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/default.rb:38:in `request'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:40:in `call'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:598:in `raw_execute'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:576:in `execute'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:544:in `find_element_by'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/common/search_context.rb:42:in `find_element'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.1/lib/watir-webdriver/locators/element_locator.rb:247:in `by_id'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.1/lib/watir-webdriver/locators/element_locator.rb:26:in `locate'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:384:in `locate'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:362:in `assert_exists'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:37:in `exists?'
            from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:296:in `present?'
    from (irb):15

谢谢。

Answer 1

我会将此添加为评论，但显然我还不能。您使用的是 Firefox 17 吗？ Watir-webdriver 尚不兼容 17，因此如果您尝试恢复到 Firefox 16 并查看您的代码是否有效。据我所知，用于解决此兼容性问题的 watir-webdriver 更新将于下周发布。