问题
I've been using Selenium to automate website testing. Part of the tests involves waiting for AJAX requests to finish. I've been using this line to do that with jQuery 1.4:
selenium.WaitForCondition("selenium.browserbot.getCurrentWindow().jQuery.active == 0", "5000");
It worked fine in Chrome and Firefox 4, but not IE9. Then I upgraded to jQuery 1.5, and it magically stopped working in Chrome. I've tried the following variations, but none of them work:
selenium.WaitForCondition("selenium.browserbot.getCurrentWindow().jQuery.active == 0", "5000");
selenium.WaitForCondition("selenium.browserbot.getCurrentWindow().jQuery.ajax.active == 0", "5000");
selenium.WaitForCondition("selenium.browserbot.getCurrentWindow().$.active == 0", "5000");
selenium.WaitForCondition("selenium.browserbot.getCurrentWindow().$.ajax.active == 0", "5000");
The SeleniumException is that it cannot read property active or ajax of undefined, so I guess it's somehow not able to get to jQuery. My colleague is running the same tests on Firefox 4, and they pass.
Has anyone experienced this issue? Any suggestions?
回答1:
Apparently everything in Selenium can be fixed by throwing in random Thread.Sleep()s. The window hadn't finished loading in some cases, that's why $ was undefined. I put a sleep before the wait, and it works fine now.
I had to use the following line:
selenium.WaitForCondition("selenium.browserbot.getCurrentWindow().$.active == 0", "5000");
Even though people are saying I should have used $.ajax.active if I'm using jQuery 1.5, it's undefined for me, whereas $.active works.
来源：https://stackoverflow.com/questions/5469722/selenium-waiting-for-ajax-in-chrome