有过时异常的问题,GhostDriver冒泡了一些东西,上次执行时更改了sice
在{Random “Element is no longer attached to the DOM” StaleElementReferenceException}这个有超过16k视图的问题上,有人在讲述竞争条件和测试时间变化的事情,但是我的代码执行速度太快以至于我无法相信某些内容发生了变化。
我什么都没改变,所有代码都执行得很快,也许页面本身在测试片段执行的小时间框架内发生了变化
myLibWorks.findElements(..
没问题并返回元素,使用FluentWait<SearchContext>
然后元素在方法返回时可用
它抛出:
缓存中不存在元素
之后我尝试在元素上执行javascript 这是我的Java代码的简化片段:
by = getBy_A001();
List<WebElement> welCollecN1 = myLibWorks.findElements(driver, timeOutInSeconds, pollingForSecond, by);
if (welCollecN1 != null) {
WebElement wel01 = welCollecN1.iterator().next();
if(wel01 != null)
{
by = getBy_A002();
List<WebElement> welCollecN2 = myLibWorks.findElements(wel01, timeOutInSeconds, pollingForSecond, by);
if (welCollecN2 != null) {
WebElement wel02 = welCollecN2.iterator().next();
if(wel02 != null)
{
String value = null;
value = elm.getText();
if(value.length() == 0) {
//-------------------------------------------------
// REACH here then i think its ok above, this works almost of time too
// THIS line throws "Element does not exist in cache"
value = (String) ((JavascriptExecutor) driver).executeScript(driver, "return arguments[0].innerHTML", wel02); // <<== ERROR
//-------------------------------------------------
}
}
}
}
}
由Request =&gt;引起的缓存中不存在元素 { “头”:{ “接受”:“应用/ JSON, 图像/ PNG“‘连接’:‘保持活动’,‘内容长度’:‘84’,‘内容类型’:”应用/ JSON; 字符集= UTF-8" , “主机”: “127.0.0.1:4444”}, “httpVersion”: “1.1”, “方法”: “POST”, “后”: “{\” ARGS \“:[{ \ “元素\”:\ “:WDC:1371656598440 \”}],\ “脚本\”:\“返回 参数[0] .innerHTML \ “}”, “URL”: “/执行”, “urlParsed”:{ “锚”: “”, “查询”: “”, “文件”: “执行”, “目录” : “/”, “路径”: “/执行”, “相对的”: “/执行”, “端口”: “”, “宿主”: “”, “密码”: “”, “用户”: “” “用户信息”: “”, “权威”: “”, “协议”: “”, “源”: “/执行”, “queryKey”:{}, “块”:[ “执行”]}“, urlOriginal “:”/会话/ efc7cf60-d8f6-11e2-9f07-192e7e451712 /执行“} 命令持续时间或超时:736毫秒有关文档 这个错误,请访问: http://seleniumhq.org/exceptions/stale_element_reference.html建立 info:version:'2.32.0',修订版:'6c40c18',时间:'2013-04-09 17:22:56'系统信息:os.name:'Linux',os.arch:'i386',os.version: '3.8.0-19-generic',java.version:'1.7.0_21'会话ID: efc7cf60-d8f6-11e2-9f07-192e7e451712驱动信息: org.openqa.selenium.remote.RemoteWebDriver功能 [{platform = LINUX,acceptSslCerts = false,javascriptEnabled = true, browserName = phantomjs,rotate = false,driverVersion = 1.0.3, locationContextEnabled = false,version = 1.9.0,cssSelectorsEnabled = true, databaseEnabled = false,handlesAlerts = false, browserConnectionEnabled = false,proxy = {proxyType = direct}, nativeEvents = true,webStorageEnabled = false,driverName = ghostdriver, applicationCacheEnabled = false,takesScreenshot = true}]} =======
/**
* Retrieves an element from the cache. Will verify that the element is
* still attached to the DOM before returning.
* @param {string} key The element's key in the cache.
* @param {Document=} opt_doc The document whose cache to retrieve the element
* from. Defaults to the current document.
* @return {Element|Window} The cached element.
*/
bot.inject.cache.getElement = function(key, opt_doc) {
key = decodeURIComponent(key);
var doc = opt_doc || document;
var cache = bot.inject.cache.getCache_(doc);
if (!goog.object.containsKey(cache, key)) {
// Throw STALE_ELEMENT_REFERENCE instead of NO_SUCH_ELEMENT since the
// key may have been defined by a prior document's cache.
throw new bot.Error(bot.ErrorCode.STALE_ELEMENT_REFERENCE,
'Element does not exist in cache');
}
var el = cache[key];
// If this is a Window check if it's closed
if (goog.object.containsKey(el, 'setInterval')) {
if (el.closed) {
delete cache[key];
throw new bot.Error(bot.ErrorCode.NO_SUCH_WINDOW,
'Window has been closed.');
}
return el;
}
// Make sure the element is still attached to the DOM before returning.
var node = el;
while (node) {
if (node == doc.documentElement) {
return el;
}
node = node.parentNode;
}
delete cache[key];
throw new bot.Error(bot.ErrorCode.STALE_ELEMENT_REFERENCE,
'Element is no longer attached to the DOM');
};
答案 0 :(得分:0)
在使用GhostDriver依赖项和使用Chrome驱动程序运行测试时,我遇到了同样的问题。将这两个addtional依赖项添加到pom.xml解决了这个问题:
```
fh.seek(0)
```
别忘了用你正在使用的版本替换硒版本。
希望它有所帮助!