selenium 2.4.0，如何检查警报的存在

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在使用 selenium 2.4.0 之前，我有以下代码工作:

Before using selenium 2.4.0 I had the following code working:

alert = page.driver.browser.switch_to.alert if alert.text .... end

Selenium 2.4.0 包含更改* Raise in switch_to.alert when no alert is present."，所以我得到一个 No alert is present (Selenium::WebDriver::Error::NoAlertOpenError)异常.

Selenium 2.4.0 contains the change "* Raise in switch_to.alert when no alert is present.", so I get a No alert is present (Selenium::WebDriver::Error::NoAlertOpenError) exception.

如何使用 selenium-web-driver 2.4.0 检查警报的存在?

How can I check for the presence of an alert with selenium-web-driver 2.4.0?

推荐答案

这是一种选择:

driver.switch_to.alert.accept rescue Selenium::WebDriver::Error::NoAlertOpenError

如果存在警报，这将单击确定"，否则它将正常(静默)失败.

This will click OK on the alert if one is present, else it will fail gracefully (silently).