【发布时间】：2017-11-16 22:38:42
【问题描述】：
亲爱的，我正在使用 Selenium EventFiringWebDriver 来记录调用的 Web 驱动程序方法。我意识到我经常收到“StaleReferenceException”，而当我只使用 HtmlUnitDriver 时，我没有遇到问题。
我还认识到调用，即“click()”已经在浏览器中执行，尽管“StaleElementReferenceException”被抛出。
有没有人知道 EventFiringWebDriver 在使用 HtmlUnitDriver 或 FirefoxDriver 时遇到此类问题？ 会不会是原始驱动程序在运行时更新了 WebElements 而 EventFiringWebDriver 的 wrapped WebElements 没有？ 还是我们应该将此作为 EventFiringWebDriver 实现的错误提出？
带有 EventFiringWebDriver 的示例代码 - 抛出 StaleElementReferenceException
HtmlUnitDriver driver = new HtmlUnitDriver();
driver.manage().timeouts().implicitlyWait(3, TimeUnit.SECONDS);
ExtentReports extent = new ExtentReports ("report.html", true);
ExtentTest logger = extent.startTest("test");
EventFiringWebDriver eventDriver = new EventFiringWebDriver(driver);
eventDriver.register(new MyWebDriverEventListener(logger));
try {
WebElement element = null;
eventDriver.get("https://www.google.com");
element = eventDriver.findElement(By.xpath("//input[@type='text']"));
element.sendKeys("Test");
element.submit();
Thread.sleep(2000);
element = eventDriver.findElement(By.xpath("//div[@id='search']//a"));
String title = element.getText();
// HERE the StaleElementReferenceException get thrown ALTHOUGH the "click" event get processed by the browser, it loads already the page
try {
element.click();
} catch(StaleElementReferenceException ex) {
}
Thread.sleep(2000);
Assert.assertEquals(title, eventDriver.getTitle());
logger.log(LogStatus.PASS,"end","Test passed");
} catch(AssertionError error) {
logger.log(LogStatus.FAIL,"end","Test failed:" + error.getMessage());
throw error;
}
finally {
extent.endTest(logger);
extent.flush();
extent.close();
eventDriver.quit();
}
相同的代码 - 直接使用 HtmlUnitDriver，没有任何问题
HtmlUnitDriver driver = new HtmlUnitDriver();
driver.manage().timeouts().implicitlyWait(3, TimeUnit.SECONDS);
ExtentReports extent = new ExtentReports ("report.html", true);
ExtentTest logger = extent.startTest("test");
try {
WebElement element = null;
driver.get("https://www.google.com");
element = driver.findElement(By.xpath("//input[@type='text']"));
element.sendKeys("Test");
element.submit();
Thread.sleep(2000);
element = driver.findElement(By.xpath("//div[@id='search']//a"));
String title = element.getText();
element.click();
Thread.sleep(2000);
Assert.assertEquals(title, driver.getTitle());
logger.log(LogStatus.PASS,"end","Test passed");
} catch(AssertionError error) {
logger.log(LogStatus.FAIL,"end","Test failed:" + error.getMessage());
throw error;
}
finally {
extent.endTest(logger);
extent.flush();
extent.close();
driver.quit();
}
【问题讨论】：
标签： java selenium selenium-webdriver htmlunit-driver stalestateexception